ACTIVE-SEMI ACT5830QJ182-T

ACT5830
®
Rev 2, 20-Jan-11
Twelve Channel PMU for Mobile Phones
FEATURES
GENERAL DESCRIPTION
• Multiple Patents Pending
• 350mA, PWM Step-Down DC/DC Converter
• Eight I2C-Programmable, Low Noise LDOs
− Three Optimized for RF Section Power
− Five Optimized for BB Section Power
• Li+ Battery Charger with Integrated MOSFET
− Charger Current Monitor Output (VICHG)
− Charger ON/OFF Control Pin
The patent-pending ACT5830 is a complete,
integrated power management solution that is ideal
for mid-high and mobile phones. This device
integrates a linear Li+ battery charger with an
internal power MOSFET, a high efficiency 350mA
DC/DC converter, eight low dropout linear
regulators, a reset output, and two N-Channel open
drain switches, and an I2C Serial Interface to
achieve flexibility for programming LDO outputs and
individual on/off control.
• Two N-channel Open Drain Switches
The charger is a complete, thermally-regulated,
stand-alone single-cell linear Li+ battery charger
that incorporates an internal power MOSFET for
constant-current/constant-voltage control. The
charger includes a variety of value-added features,
and it is programmable via the I2C-Interface to
control charging current, termination voltage, along
with safety features and operation modes.
• Minimal External Components
• I2CTM Serial Interface
− Configurable Operating Modes
• AC-OK and RESET Outputs
• 5×5mm, Thin-QFN (TQFN55-40) Package
− Only 0.75mm Height
− RoHS Compliant
The ACT5830 is available in a compact 5mm x
5mm 40-pin Thin-QFN package that is just 0.75mm
thin.
APPLICATIONS
• GSM or CDMA Mobile Phones
SYSTEM BLOCK DIAGRAM
Pb-free
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-1-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
TABLE OF CONTENTS
GENERAL INFORMATION ...................................................................................... P. 01
Functional Block Diagram ................................................................................................. p. 03
Ordering Information ......................................................................................................... p. 04
Pin Configuration .............................................................................................................. p. 04
Pin Descriptions ................................................................................................................ p. 05
Absolute Maximum Ratings .............................................................................................. p. 07
SYSTEM MANAGEMENT ........................................................................................ P. 08
Electrical Characteristics................................................................................................... p. 08
I2C Interface Electrical Characteristics .............................................................................. p. 09
System Management Register Descriptions ..................................................................... p. 10
Functional Descriptions..................................................................................................... p. 11
STEP-DOWN DC/DC CONVERTER ....................................................................... P. 13
Electrical Characteristics .................................................................................................. p. 13
Register Descriptions ........................................................................................................ p. 14
Typical Performance Characteristics ............................................................................... p. 16
Functional Description ...................................................................................................... p. 17
LOW-DROPOUT LINEAR REGULATORS .............................................................. P. 19
Register Descriptions ........................................................................................................ p. 19
Typical Performance Characteristics ................................................................................ p. 23
Functional Description ...................................................................................................... p. 24
LDO1................................................................................................................................. p. 25
LDO2................................................................................................................................. p. 26
LDO3................................................................................................................................. p. 27
LDO4................................................................................................................................. p. 28
LDO5................................................................................................................................. p. 29
LDO6................................................................................................................................. p. 30
LDO7................................................................................................................................. p. 31
LDO8................................................................................................................................. p. 32
SINGLE-CELL Li+ BATTERY CHARGER (CHGR) ................................................. P. 33
Electrical Characteristics ................................................................................................... p. 33
Li+ Battery Charger Register Descriptions ........................................................................ p. 35
Typical Performance Characteristics ................................................................................ p. 37
Functional Description....................................................................................................... p. 38
PACKAGE INFORMATION ...................................................................................... P. 41
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-2-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
FUNCTIONAL BLOCK DIAGRAM
BODY AND
VSYS
CONTROL
AC Adaptor
or USB
4.3V to 6V
CHG_IN
Active-Semi
ACT5830
BAT
Li+ Battery
+
CURRENT
SENSE
VINUVLO
4.0V
VOLTAGE
SENSE
nENCHG
Charge
Control
nACOK
PRECONDITION
2.9V
BATID
THERMAL
REGULATION
VICHG
110°C
VP
To Battery
OUT1
nRST
SW
VBUCK
Reset
VBUCK
REF
GP
Voltage Reference
PWR_HOLD
LDO1
nON
OUT1
OUT1
HF_PWR
PWR_ON
System
Control
LDO2
OUT2
OUT2
SDA
LDO3
SCL
IN1
IN2
To LDOs
LDO4
OUT1
OUT4
OUT3
OUT4
To LDOs
TCXO_EN
BAT
OUT3
LDO5
RX_EN
TX_EN
LDO6
OUT5
OUT6
OUT5
OUT6
ODI1
OD1
Open-Drain
#1
LDO7
OUT7
OUT7
ODI2
OD2
Open-Drain
#2
LDO8
OUT8
OUT8
G
EP
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-3-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
ORDERING INFORMATIONcd
PART NUMBER VBUCK VLDO1 VLDO2 VLDO3 VLDO4 VLDO5 VLDO6 VLDO7 VLDO8 ICHARGER PACKAGE PINS
TEMPERATURE
RANGE
ACT5830QJ1CF-T 1.2V 3.0V 1.8V 3.0V 3.0V 3.0V 3.0V 1.8V 3.3V
0.45A TQFN55-40 40
-40°C to +85°C
ACT5830QJ182-T 1.2V 3.0V 1.8V 3.0V 3.0V 2.85V 2.85V 1.8V 1.5V
0.45A TQFN55-40 40
-40°C to +85°C
c: Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders.
Additional output voltage options, as detailed in the Output Voltage Codes table, are available for production subject to minimum order
quantities. Contact Active-Semi for more information regarding semi-custom output voltage combinations.
d: All Active-Semi components are RoHS Compliant and with Pb-free plating unless specified differently. The term Pb-free means
semiconductor products that are in compliance with current RoHS (Restriction of Hazardous Substances) standards.
PIN CONFIGURATION
NC
VP
SW
SW
GP
NC
nACOK
nENCHG
BATID
VICHG
CHG_IN
VBUCK
BAT
HF_PWR
REF
G
Active-Semi
nRST
IN2
OUT4
nON
IN1
OUT3
ACT5830
OUT6
OUT5
OUT8
OUT7
EP
OUT2
OUT1
TX_EN
RX_EN
NC
PWR_HOLD
PWR_ON
ODI2
OD2
OD1
ODI1
SCL
SDA
TCXO_EN
5×5mm QFN (TQFN55-40)
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-4-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
CHG_IN
2
BAT
Battery Charger Output. Connect this pin directly to the battery anode (+ terminal), and to IN1
and IN2 pins. Bypass with 10µF ceramic capacitor to G.
3
REF
Reference Noise Bypass. Connect a 0.01µF ceramic capacitor from REF to G. This pin is
discharged to G in shutdown.
4
nRST
Active Low Reset Output. nRST asserts low for the reset timeout period of 65ms whenever the
ACT5830 is first enabled. This output is internally connected to OUT1 via a 15kΩ pull-up resistor.
5
IN2
6
OUT4
LDO4 Output. Capable of delivering up to 100mA of output current. Output is discharged to
ground with 1kΩ when disabled.
7
OUT6
LDO6 Output. Capable of delivering up to 150mA of output current. Output is discharged to
ground with 1kΩ when disabled.
8
OUT8
LDO8 Output. Capable of delivering up to 250mA of output current. Output is discharged to
ground with 1kΩ when disabled.
9
OUT2
LDO2 Output. Capable of delivering up to 300mA of output current. Output is discharged to
ground with 1kΩ when disabled.
10
TX_EN
LDO6 Independent On/Off Control. Drive to a logic high for normal operation, and to a logic low
to disable.
11
TCXO_EN
LDO4 Independent On/Off Control. Drive to a logic high for normal operation, and to a logic low
to disable.
12
SDA
Data Input for I2C Serial Interface. Data is read on the rising edge of the clock.
13
SCL
Clock Input for I2C Serial Interface. Data is read on the rising edge of the clock.
14
ODI1
Digital Control for Open Drain N-channel Switch 1. Drive to a logic high to turn on the switch.
Drive to a logic low to turn off the switch.
15
OD1
N-channel Open–Drain Output 1. State of output controlled by ODI1.
16
OD2
N-channel Open–Drain Output 2. State of output controlled by ODI2.
17
ODI2
Digital Control for Open Drain N-channel Switch 2. Drive to a logic high to turn on the switch.
Drive to a logic low to turn off the switch.
18
PWR_ON
Push Button On/Off Input. Connect a push-button between this pin and BAT. There is an internal
200kΩ pull down resistor to G. See the System Startup & Shutdown section for more information.
19
PWR_HOLD
Power Hold Input. Drive PWR_HOLD to a logic high to complete the startup sequence. Drive the
pin to a logic low to disable IC. See the System Startup & Shutdown section for more information.
20
NC
21
RX_EN
22
OUT1
LDO1 Output. Capable of delivering up to 300mA of output current. Output is discharged to
ground with 1kΩ when disabled.
23
OUT7
LDO7 Output. Capable of delivering up to 250mA of output current. Output is discharged to
ground with 1kΩ when disabled.
Battery Charge Supply Input. Connect a 1µF ceramic capacitor from CHG_IN to G.
Input supply to LDO2, LDO4, LDO6, and LDO8. Connect to BAT and IN1.
No Connect. Not internally connected.
LDO5 Independent On/Off Control. Drive to a logic high for normal operation, and to a logic low
to disable.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-5-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
PIN DESCRIPTIONS CONT’D
PIN
NAME
24
OUT5
LDO5 Output. Capable of delivering up to 150mA of output current. Output is discharged to
ground with 1kΩ when disabled.
25
OUT3
LDO3 Output. Capable of delivering up to 100mA of output current. Output is discharged to
ground with 1kΩ when disabled.
26
IN1
Input Supply to LDO1, LDO3, LDO5, and LDO7. Connect to BAT and IN2.
27
nON
Push-Button Active Low Open Drain Output. When PWR_ON is low, nON is open drain. When
PWR_ON is high or when in shutdown, nON is asserted low. This output is internally connected
to OUT1 via a 15kΩ pull-up resistor.
28
G
29
DESCRIPTION
Ground. Connect G and GP together at a single point place as close to the IC as possible.
Hands Free Input. A high level indicates availability of hands free input. This pin is internally
HF_PWR pulled down to G via a 200kΩ resistor. Connect to a 0.1µF capacitor to G to achieve TBDkV
(typ) ESD protection.
Output Feedback Sense for REG. Connect this pin directly to the output node to connect the
internal feedback network to the output voltage.
30
VBUCK
31
NC
No Connect. Not internally connected.
32
VP
Power Input for REG. Connect to BAT, IN1, and IN2. Bypass to GP with a high quality ceramic
capacitor placed as close as possible to the IC.
33, 34
SW
Switching Node Output for REG. Connect this pin to the switching end of the inductor.
35
GP
Power Ground for REG. Connect G and GP together at a single point place as close to the IC
as possible.
36
NC
No Connect. Not internally connected.
37
nACOK
38
nENCHG
Charge Enable Active Low Input. Drive low or leave floating to enable the charger. Drive high to
disable the charger. This pin has an internal 200kΩ pull-down resistor.
39
BATID
Battery ID pin to detect the presence of the battery. When the battery is present, the voltage at
this pin is lower than 2V, otherwise, it is higher than 2V.
40
VICHG
Charge Current Monitor. The voltage at this pin is proportional to the charger current, with a
gain of 2.47mV/mA. This output becomes high impedance in shutdown.
EP
EP
CHG_IN Active Low Status Output. nACOK is asserted low when VCHG_IN > 4.0V.
Exposed Pad. Must be soldered to ground on the PCB.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-6-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
ABSOLUTE MAXIMUM RATINGSc
PARAMETER
VALUE
UNIT
-0.3 to +7
-0.3 to +6
V
V
IN1, IN2, BAT, BATID, VICHG, SCL, SDA, PWR_HOLD, nRST, PWR_ON, nON,
nACOK, nENCHG, TCXO_EN, RX_EN, TX_EN, ODIx, ODx to G
-0.3 to +6
V
VP, SW, VBUCK to GP
-0.3 to +6
V
CHG_IN to G
t < 1ms and duty cycle <1%
Steady State
REF, HF_PWR to G
-0.3 to VBAT + 0.3
OUT1, OUT3, OUT5, OUT7 to G
-0.3 to VIN1 + 0.3
V
OUT2, OUT4, OUT6, OUT8 to G
-0.3 to VIN2 + 0.3
V
-0.3 to +0.3
V
Junction to Ambient Thermal Resistance (θJA)
30
°C/W
RMS Power Dissipation (TA = 70°C)d
2.7
W
Operating Junction Temperature (TJ)
-40 to 150
°C
Operating Temperature Range (TA)
-40 to 85
°C
Store Temperature
-55 to 150
°C
300
°C
GP to G
Lead Temperature (Soldering, 10 sec)
c: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.
d: Derate 33mW/°C above TA = 70°C.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-7-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SYSTEM MANAGEMENT
ELECTRICAL CHARACTERISTICS
(VBAT = VIN1 = VIN2 = 3.6V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
BAT Operating Voltage Range
MIN
TYP
2.6
BAT UVLO Threshold
BAT Voltage Rising
BAT UVLO Hysteresis
BAT Voltage Falling
80
BAT Rising
0.1
BAT Falling
5
BAT UVLO Delay
2.2
nRST Delay
No Load BAT Supply Current
2.35
MAX UNIT
5.5
V
2.5
V
mV
ms
65
ms
REG, LDO1, LDO2 and LDO3 Enabled with
No Load and CHGR Disabled
0.26
0.5
mA
REG, All LDOs Enabled and CHGR Disabled.
0.45
0.75
mA
1.25
1.26
V
REF Output Voltage
1.24
Reference PSRR
CREF = 0.01µF, f = 1kHz
75
dB
ODx Output On Resistance
100mA Sink Current
4
Ω
ODx Output Leakage Current
VODx = VBAT
10
Logic High Input Voltage
1.4
µA
V
Logic Low Input Voltage
0.4
V
0.3
V
1
µA
Logic Low Output Voltage
nON, nRST, ISINK = 5mA
Logic Leakage Current
VnON = VnRST = VCHG_IN = 4.2V
Thermal Shutdown Temperature
Temperature rising
160
°C
Thermal Shutdown Hysteresis
Temperature falling
20
°C
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-8-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SYSTEM MANAGEMENT
I2C INTERFACE ELECTRICAL CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
SCL, SDA Low Input Voltage
SCL, SDA High Input Voltage
TYP
MAX
UNIT
0.4
V
1.4
SCL, SDA Leakage Current
VCHG_IN = 4.2V
SDA Low Output Voltage
IOL = 5mA
SCL Clock Period, tSCL
fSCL clock freq = 400kHz
V
1
µA
0.3
V
2.5
µs
SDA Data In Setup Time to SCL High, tSU
100
ns
SDA Data Out Hold Time after SCL Low, tHD
300
ns
SDA Data Low Setup Time to SCL Low, tST
Start Condition
100
ns
SDA Data High Hold Time after Clock High, tSP
Stop Condition
100
ns
Figure 1:
I2C Serial Bus Timing
Note: Each session of data transfer is with a start condition, a 7-bits slave address plus a bit to instruct for read or write followed by an
acknowledge bit, a register address byte followed by an acknowledge bit, a data byte followed by an acknowledge bit and a stop condition. The device address, the register address and the data are all MSB first transferred. Each bit volume is prepared in during the SCL
is low, is latched-in by the rising edge of the SCL. The data byte is accepted and is put effective by the time that the last bit volume is
latched-in.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-9-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SYSTEM MANAGEMENT
SYSTEM MANAGEMENT REGISTER DESCRIPTIONS
Table 1:
Global Register Map
OUTPUT
ADDRESS
DATA (DEFAULT VALUES)
HEX
A7
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
CHGR
08h
0
0
0
0
1
0
0
0
0
0
0
0
R
V
V
V
CHGR
09h
0
0
0
0
1
0
0
1
0
0
R
R
R
R
R
R
CHGR
0Ah
0
0
0
0
1
0
1
0
R
R
R
R
R
R
R
R
CHGR
0Bh
0
0
0
0
1
0
1
1
R
R
R
R
R
R
R
0
LDO3
0Ch
0
0
0
0
1
1
0
0
1
R
0
V
V
V
V
V
LDO5
0Dh
0
0
0
0
1
1
0
1
1
R
0
V
V
V
V
V
LDO7
07h
0
0
0
0
0
1
1
1
R
V
V
V
V
V
V
V
LDO7
0Eh
0
0
0
0
1
1
1
0
1
R
1
R
R
R
R
R
LDO1
0Fh
0
0
0
0
1
1
1
1
1
R
1
V
V
V
V
V
LDO4
10h
0
0
0
1
0
0
0
0
1
R
0
V
V
V
V
V
LDO6
11h
0
0
0
1
0
0
0
1
1
R
0
V
V
V
V
V
LDO8
12h
0
0
0
1
0
0
1
0
1
R
1
V
V
V
V
V
LDO2
13h
0
0
0
1
0
0
1
1
1
R
0
V
V
V
V
V
REG
14h
0
0
0
1
0
1
0
0
R
V
V
V
V
V
V
V
REG
15h
0
0
0
1
0
1
0
1
R
R
R
R
R
R
R
0
REG
16h
0
0
0
1
0
1
1
0
R
R
R
R
R
R
R
R
REG
17h
0
0
0
1
0
1
1
1
R
R
R
R
R
R
R
1
KEY:
R: Read-Only bit. No Default Assigned.
V: Default Values Depend on Voltage Option. Default Values May Vary.
Note: Addresses other than those specified in Table 1 may be used for factory settings. Do not access any registers other than those
specified in Table 1.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 10 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SYSTEM MANAGEMENT
FUNCTIONAL DESCRIPTIONS
The ACT5830 offers a wide array of system
management functions that allow it to be configured for
optimal performance in a wide range of applications.
I²C Serial Interface
At the core of the ACT5830’s flexible architecture is
an I2C interface that permits optional programming
capability to enhance overall system performance.
Use standard I2C write-byte commands to program
the ACT5830 and read-byte commands to read the
IC’s status. Figure 1: I2C Serial Bus Timing provides
a standard timing diagram for the I2C protocol. The
ACT5830 always operates as a slave device, with
address 1010101.
System Startup & Shutdown
The ACT5830 features a flexible enable
architecture that allows it to support a variety of
push-button enable/disable schemes. Although
other startup routines are possible, a typical startup
and shutdown process would proceed as follows
(referring to Figure 2):
System startup is initiated whenever one of the
following conditions occurs:
1) The user presses the push-button, asserting
PWR_ON high,
2) A valid supply (>4V) is connected to the
charger input (CHG_IN), or
3) A headset is connected, asserting HF_PWR
high.
The ACT5830QJ1CF begins its system startup
procedure by enabling REG, LDO7 and LDO8, then
LDO1 are enabled when VBUCK reaches 87% of
its final value; The ACT5830QJ182 begins its
system startup procedure by enabling REG, LDO1,
LDO7 and LDO8. nRST is asserted low when
VOUT1 reaches 87% of its final value, holding the
microprocessor in reset for a user-selectable reset
period of 65ms. If VBUCK and VOUT1 are within
13% of their regulation voltages when the reset
timer expires, the ACT5830 de-asserts nRST so that
the microprocessor can begin its power up
sequence. Once the power-up routine is successfully
completed, the microprocessor asserts PWR_HOLD
high to keep the ACT5830 enabled after the pushbutton is released by the user.
Once the power-up routine is completed, the
remaining LDOs can be enabled/disabled via either
the I2C interface or the TCXO_EN (LDO4), RX_EN
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
(LDO5), TX_EN (LDO6), and PWR_HOLD (REG
and LDO1) pins.
This start-up procedure requires that the pushbutton be held until the microprocessor assumes
control of PWR_HOLD, providing protection against
inadvertent momentary assertions of the pushbutton. If desired, longer “push-and-hold” times can
be easily implemented by simply adding an
additional delay before assuming control of
PWR_HOLD. If the microprocessor is unable to
complete its power-up routine successfully before
the user lets go of the push-button, the ACT5830
will automatically shut itself down.
Once a successful power-up routine is completed,
the user can initiate a shutdown process by
pressing the push-button a second time. Upon
detecting a second assertion of PWR_ON (by
depressing the push-button), the ACT5830 asserts
nON to interrupt the microprocessor which initiates
an interrupt service routine that will reveal that the
user pressed the push-button. If HF_PWR and
CHG_OK are both low, the microprocessor then
initiates a power-down routine, the final step of
which will be to de-assert PWR_HOLD, disabling
REG and LDO1.
Open Drain Outputs
The ACT5830 includes two n-channel open drain
outputs (OD1 and OD2) that can be used for driving
external loads such as WLEDs or a vibrator motor,
as shown in the functional diagram. Each of the OD
outputs is enabled when either it's respective ODIx
pin in driven to a logic high.
nACOK Output
The ACT5830's nACOK output provides a logic-level
indication of the status of the voltage at CHG_IN.
nACOK is an open-drain output which sinks current
whenever VCHG_IN > 4V.
Thermal Overload Protection
The ACT5830 integrates thermal overload protection
circuitry to prevent damage resulting from excessive
thermal stress that may be encountered under fault
conditions, for example. This circuitry disables all
regulators if the ACT5830 die temperature exceeds
160° C, and prevents the regulators from being
enabled until the die temperature drops by 20°C
(typ), after which a normal startup routine may
commence.
- 11 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SYSTEM MANAGEMENT
Figure 2:
Startup and Shutdown Sequence
c
2
2
c: Also the OUT1 for the ACT5830QJ182-T.
2: Apply to the ACT5830QJ1CF only.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 12 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
STEP-DOWN DC/DC CONVERTER
ELECTRICAL CHARACTERISTICS
(VVP = 3.6V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
VP Operating Voltage Range
MIN
3.1
VP UVLO Threshold
Input Voltage Rising
VP UVLO Hysteresis
Input Voltage Falling
2.9
Output Voltage Regulation Accuracy
REG/ON[ ] = [0], VVP = 4.2V
1
µA
c
VNOM
VREG ≥ 20% of VNOM
V
0.1
-1.2%
Current Limit
3.1
µA
VNOM ≥ 1.3V, IOUT = 10mA
IOUT = 10mA to 350mA
V
200
VNOM
Load Regulation
5.5
110
-2.4%
VVP = Max(VNOM + 1V, 3.2V) to 5.5V
UNIT
mV
VNOM < 1.3V, IOUT = 10mA
Line Regulation
Oscillator Frequency
3
MAX
80
Standby Supply Current
Shutdown Supply Current
TYP
+1.8%
+1.8%
V
0.15
%/V
0.0017
%/mA
0.45
0.6
A
1.35
1.6
1.85
MHz
VREG = 0V
530
PMOS On-Resistance
ISW = -100mA
0.45
0.75
Ω
NMOS On-Resistance
ISW = 100mA
0.3
0.5
Ω
SW Leakage Current
VVP = 5.5V, VSW = 5.5V or 0V
1
µA
kHz
Power Good Threshold
94
%VNOM
Minimum On-Time
70
ns
c: VNOM refers to the nominal output voltage level for VREG as defined by the Ordering Information section.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 13 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
STEP-DOWN DC/DC CONVERTER
REGISTER DESCRIPTIONS
Note: See Table 1 for default register settings.
Table 2:
Control Register Map
DATA
ADDRESS
D7
D6
R
VRANGE
15h
R
R
R
R
16h
R
R
R
R
17h
R
R
R
R
14h
D5
D4
D3
D2
D1
D0
R
R
R
MODE
R
R
R
R
R
R
OK
ON
VSET
R: Read-Only bits. Default Values May Vary.
Table 3:
Control Register Bit Descriptions
ADDRESS
NAME
BIT
ACCESS
FUNCTION
14h
VSET
[5:0]
R/W
REG Output Voltage Selection
14h
VRANGE
REG Voltage Range
Selection
DESCRIPTION
See Table 4
0
Min VOUT = 1.1V
1
Min VOUT = 1.25V
[6]
R/W
[7]
R
[0]
R/W
15h
[7:1]
R
READ ONLY
16h
[7:0]
R
READ ONLY
14h
15h
MODE
READ ONLY
Mode Selection
0
PWM/PFM
1
Forced PWM
0
REG Disable
1
REG Enable
0
Output is not OK
1
Output is OK
17h
ON
[0]
R/W
REG Enable
17h
OK
[1]
R
REG Power-OK
17h
[2]
R
READ ONLY
17h
[7:3]
R
READ ONLY
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 14 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
STEP-DOWN DC/DC CONVERTER
REGISTER DESCRIPTIONS CONT’D
Table 4:
REG/VSET[ ] Output Voltage Setting
REG/VSET[5:4]
REG/VSET
[3:0]
REG/VRANGE[ ] = [0]
REG/VRANGE[ ] = [1]
00
01
10
11
00
01
10
11
0000
N/A
N/A
1.455
1.860
1.250
2.050
2.850
3.650
0001
N/A
N/A
1.480
1.890
1.300
2.100
2.900
3.700
0010
N/A
1.100
1.505
1.915
1.350
2.150
2.950
3.750
0011
N/A
1.125
1.530
1.940
1.400
2.200
3.000
3.800
0100
N/A
1.150
1.555
1.965
1.450
2.250
3.050
3.850
0101
N/A
1.175
1.585
1.990
1.500
2.300
3.100
3.900
0110
N/A
1.200
1.610
2.015
1.550
2.350
3.150
3.950
0111
N/A
1.225
1.635
2.040
1.600
2.400
3.200
4.000
1000
N/A
1.255
1.660
2.065
1.650
2.450
3.250
4.050
1001
N/A
1.280
1.685
2.090
1.700
2.500
3.300
4.100
1010
N/A
1.305
1.710
2.115
1.750
2.550
3.350
4.150
1011
N/A
1.330
1.735
2.140
1.800
2.600
3.400
4.200
1100
N/A
1.355
1.760
2.165
1.850
2.650
3.450
4.250
1101
N/A
1.380
1.785
2.190
1.900
2.700
3.500
4.300
1110
N/A
1.405
1.810
2.200
1.950
2.750
3.550
4.350
1111
N/A
1.430
1.835
2.245
2.000
2.800
3.600
4.400
(N/A): Not Available
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 15 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
STEP-DOWN DC/DC CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
(VINx = 3.6V, COUTx = 1µF, TA = 25°C unless otherwise specified.)
REG Load Regulation
REG Efficiency vs. Load
Efficiency (%)
4.0V
80
Load Regulation Error (%)
3.6V
85
75
70
65
60
55
50
ACT5830-002
90
0.2
ACT5830-001
95
0.0
-0.2
3.6V
4.2V
-0.4
-0.6
-0.8
-1.0
1
10
100
1000
0
50
100
Output Current (mA)
1.804
550
500
1.802
1.800
1.798
1.796
1.794
350
300
1.790
1.788
50
0
40
400
60
NMOS
250
200
150
100
20
PMOS
450
400
1.792
0
350
REG MOSFET Resistance
RDSON (mΩ)
VREG Voltage (V)
1.806
-20
300
85
2.5
3.0
3.5
4.0
4.5
5.0
Temperature (°C)
VP1 Voltage (V)
REG Load Transient Response
REG Load Transient Response
CH2
5.5
ACT5830-006
ACT5830-005
CH1
CH1
ACT5830-004
1.808
-40
250
600
ACT5830-003
IOUT1 = 35mA
1.810
200
Output Current (mA)
REG Output Voltage vs. Temperature
1.812
150
CH2
0mA
0mA
CH1: VOUT1, 50mV/div (AC Coupled)
CH2: IOUT1, 200mA/div
TIME: 200µs/div
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
CH1: VOUT1, 50mV/div (AC Coupled)
CH2: IOUT1, 200mA/div
TIME: 200µs/div
- 16 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
STEP-DOWN DC/DC CONVERTER
FUNCTIONAL DESCRIPTIONS
General Description
REG is a fixed-frequency, current-mode,
synchronous PWM step-down converters that
achieves a peak efficiency of up to 97%. REG is
capable of supplying up to 350mA of output current
and operates with a fixed frequency of 1.6MHz,
minimizing noise in sensitive applications and
allowing the use of small external components.
REG is available with a variety of standard and
custom output voltages, and may be softwarecontrolled via the I2C interface by systems that
require advanced power management functions.
mode. Program the output voltage via the I2C serial
interface by writing to the REG/VSET[ ] register.
Programmable Operating Mode
By default, REG operates in fixed-frequency PWM
mode at medium to heavy loads, then transitions to
a proprietary power-saving mode at light loads in
order to save power. In applications where low
noise is critical, force fixed-frequency PWM
operation across the entire load current range, at
the expense of light-load efficiency, by setting the
REG/MODE[ ] bit to [1].
100% Duty Cycle Operation
Power-OK
REG is capable of operating at up to 100% duty
cycle. During 100% duty-cycle operation, the highside power MOSFET is held on continuously,
providing a direct connection from the input to the
output (through the inductor), ensuring the lowest
possible dropout voltage in battery-powered
applications.
REG features a power-OK status bit that can be
read by the system microprocessor. If the output
voltage is lower than the power-OK threshold,
typically 6% below the programmed regulation
voltage, REG/OK[ ] will clear to 0.
Synchronous Rectification
REG features an integrated n-channel synchronous
rectifier, which maximizes efficiency and minimizes
the total solution size and cost by eliminating the
need for an external rectifier.
Enabling and Disabling REG
Enable/disable functionality is typically implemented
as part of a controlled enable/disable scheme
utilizing nMSTR and other system control features
of the ACT5830. REG is automatically enabled
whenever either of the following conditions are met:
Soft-Start
REG includes internal soft-start circuitry, and
enabled its output voltage tracks an internal 80µs
soft-start ramp so that it powers up in a monotonic
manner that is independent of loading.
Compensation
REG utilizes current-mode control and a proprietary
internal compensation scheme to simultaneously
simplify external component selection and optimize
transient performance over its full operating range.
No compensation design is required, simply follow a
few simple guidelines described below when
choosing external components.
1) HF_PWR is asserted high, or
Input Capacitor Selection
2) PWR_ON is asserted high, or
The input capacitor reduces peak currents and
noise induced upon the voltage source. A 2.2µF
ceramic input capacitor is recommended for most
applications.
3) PWR_HOLD is asserted high.
When none of these conditions are true, or if
REG/ON[ ] bit is set to [0], REG is disabled, and its
quiescent supply current drops to less than 1µA.
Programming the Output Voltage
By default, REG powers up and regulates to its
default output voltage. Once the system is enabled,
REG’s output voltage may be programmed to a
different value, typically in order to reduce the
power consumption of a microprocessor in standby
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
Output Capacitor Selection
For most applications, a 10µF ceramic output
capacitor is recommended. Although REG was
designed to take advantage of the benefits of
ceramic capacitors, namely small size and very-low
ESR, low-ESR tantalum capacitors can provide
acceptable results as well.
- 17 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
STEP-DOWN DC/DC CONVERTER
FUNCTIONAL DESCRIPTIONS CONT’D
Inductor Selection
REG utilizes current-mode control and a proprietary
internal compensation scheme to simultaneously
simplify external component selection and optimize
transient performance over its full operating range.
REG was optimized for operation with a 3.3µH
inductor, although inductors in the 2.2µH to 4.7µH
range can be used. Choose an inductor with a low
DC-resistance, and avoid inductor saturation by
choosing inductors with DC ratings that exceed the
maximum output current of the application by at least
30%.
PCB Layout Considerations
High switching frequencies and large peak currents
make PC board layout an important part of stepdown DC/DC converter design. A good design
minimizes excessive EMI on the feedback paths
and voltage gradients in the ground plane, both of
which can result in instability or regulation errors.
Step-down DC/DC exhibits discontinuous input
current, so the input capacitors should be placed as
close as possible to the IC, and avoiding the use of
vias if possible. The inductor, input filter capacitor,
and output filter capacitor should be connected as
close together as possible, with short, direct, and
wide traces. The ground nodes for each regulator's
power loop should be connected at a single point in
a star-ground configuration, and this point should
be connected to the backside ground plane with
multiple vias. The output node should be connected
to the VBUCK pin through the shortest possible
route, while keeping sufficient distance from
switching nodes to prevent noise injection. Finally,
the exposed pad should be directly connected to
the backside ground plane using multiple vias to
achieve low electrical and thermal resistance.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 18 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LOW-DROPOUT LINEAR REGULATORS
REGISTER DESCRIPTIONS
Note: See Table 1 for default register settings.
Table 5:
LDO Control Register Map
DATA
ADDRESS
07h
D7
D6
D5
R
VRANGE7
D4
D3
D2
D1
D0
R
R
VSET7
0Fh
DIS1
OK1
ON1
VSET1
13h
DIS2
OK2
ON2
VSET2
0Eh
DIS7
OK7
ON7
12h
DIS8
OK8
ON8
VSET8
0Ch
DIS3
OK3
ON3
VSET3
10h
DIS4
OK4
ON4
VSET4
0Dh
DIS5
OK5
ON5
VSET5
11h
DIS6
OK6
ON6
VSET6
R
R
R
Table 6:
LDO Control Register Bit Descriptions
ADDRESS
NAME
BIT
ACCESS
FUNCTION
DESCRIPTION
07h
VSET7
[5:0]
R/W
LDO7 Output Voltage Selection
See Table 8
07h
VRANGE7
[6]
R/W
REG Voltage Range
Selection
[7]
R
07h
VSET1
[4:0]
R/W
LDO1 Output Voltage Selection
0Fh
ON1
[5]
R/W
LDO1 Enable
0Fh
OK1
[6]
R
LDO1 Power-OK
0Fh
DIS1
[7]
R/W
LDO1 Output Discharge Enable
13h
VSET2
[4:0]
R/W
LDO2 Output Voltage Selection
13h
ON2
[5]
R/W
LDO2 Enable
13h
OK2
[6]
R
LDO2 Power-OK
13h
DIS2
[7]
R/W
LDO2 Output Discharge Enable
12h
VSET8
[4:0]
R/W
LDO8 Output Voltage Selection
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
Min VOUT = 0.645V
1
Min VOUT = 1.25V
READ ONLY
0Fh
Innovative PowerTM
0
- 19 -
See Table 7
0
LDO1 Disable
1
LDO1 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
See Table 7
0
LDO2 Disable
1
LDO2 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
See Table 7
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LOW-DROPOUT LINEAR REGULATORS
REGISTER DESCRIPTIONS CONT’D
Table 6:
LDO Control Register Bit Descriptions (Cont’d)
ADDRESS
NAME
BIT
ACCESS
FUNCTION
12h
ON8
[5]
R/W
LDO8 Enable
12h
OK8
[6]
R
LDO8 Power-OK
12h
DIS3
[7]
R/W
LDO8 Output Discharge Enable
0Ch
VSET3
[4:0]
R/W
LDO3 Output Voltage Selection
0Ch
ON3
[5]
R/W
LDO3 Enable
0Ch
OK3
[6]
R
LDO3 Power-Ok
0Ch
DIS3
[7]
R/W
LDO3 Output Discharge Enable
10h
VSET4
[4:0]
R/W
LDO4 Output Voltage Selection
10h
ON4
[5]
R/W
LDO4 Enable
10h
OK4
[6]
R
LDO4 Power-OK
10h
DIS4
[7]
R/W
LDO4 Output Discharge Enable
0Dh
VSET5
[4:0]
R/W
LDO5 Output Voltage Selection
0Dh
ON5
[5]
R/W
LDO5 Enable
0Dh
OK5
[6]
R
LDO5 Power-OK
0Dh
DIS5
[7]
R/W
LDO5 Output Discharge Enable
11h
VSET6
[4:0]
R/W
LDO6 Output Voltage Selection
11h
ON6
[5]
R/W
LDO6 Enable
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 20 -
DESCRIPTION
0
LDO8 Disable
1
LDO8 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
See Table 7
0
LDO3 Disable
1
LDO3 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
See Table 7
0
LDO4 Disable
1
LDO4 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
See Table 7
0
LDO5 Disable
1
LDO5 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
See Table 7
0
LDO6 Disable
1
LDO6 Enable
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LOW-DROPOUT LINEAR REGULATORS
REGISTER DESCRIPTIONS CONT’D
Table 6:
LDO Control Register Bit Descriptions (Cont’d)
ADDRESS
NAME
BIT
ACCESS
FUNCTION
11h
OK6
[6]
R
LDO6 Power-OK
11h
DIS6
[7]
R/W
LDO6 Output Discharge Enable
[4:0]
R
0Eh
ON7
[5]
R/W
LDO7 Enable
0Eh
OK7
[6]
R
LDO7 Power-OK
0Eh
DIS7
[7]
R/W
LDO7 Output Discharge Enable
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
READ ONLY
0Eh
Innovative PowerTM
DESCRIPTION
- 21 -
0
LDO7 Disable
1
LDO7 Enable
0
Output Out of Regulation
1
Output In Regulation
0
Output High-Z In Shutdown
1
Output Discharge Enabled
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LOW-DROPOUT LINEAR REGULATORS
REGISTER DESCRIPTIONS CONT’D
Table 7:
LDO1234568/VSET[ ] Output Voltage Settings
LDOx/VSETx[2:0]
LDOx/VSETx[4:3]
00
01
10
11
000
1.4
2.15
2.55
3.0
001
1.5
2.20
2.60
3.1
010
1.6
2.25
2.65
3.2
011
1.7
2.30
2.70
3.3
100
1.8
2.35
2.75
3.4
101
1.9
2.40
2.80
3.5
110
2.0
2.45
2.85
3.6
111
2.1
2.50
2.90
3.7
Table 8:
LDO7/VSET[ ] Output Voltage Settings
LDO7/VSET[5:4]
LDO7/VSET
[3:0]
LDO7/VRANGE[ ] = [0]
LDO7/VRANGE[ ] = [1]
00
01
10
11
00
01
10
11
0000
0.645
1.050
1.455
1.860
1.250
2.050
2.850
3.650
0001
0.670
1.075
1.480
1.890
1.300
2.100
2.900
3.700
0010
0.695
1.100
1.505
1.915
1.350
2.150
2.950
N/A
0011
0.720
1.125
1.530
1.940
1.400
2.200
3.000
N/A
0100
0.745
1.150
1.555
1.965
1.450
2.250
3.050
N/A
0101
0.770
1.175
1.585
1.990
1.500
2.300
3.100
N/A
0110
0.795
1.200
1.610
2.015
1.550
2.350
3.150
N/A
0111
0.820
1.225
1.635
2.040
1.600
2.400
3.200
N/A
1000
0.845
1.255
1.660
2.065
1.650
2.450
3.250
N/A
1001
0.870
1.280
1.685
2.090
1.700
2.500
3.300
N/A
1010
0.895
1.305
1.710
2.115
1.750
2.550
3.350
N/A
1011
0.920
1.330
1.735
2.140
1.800
2.600
3.400
N/A
1100
0.950
1.355
1.760
2.165
1.850
2.650
3.450
N/A
1101
0.975
1.380
1.785
2.190
1.900
2.700
3.500
N/A
1110
1.000
1.405
1.810
2.200
1.950
2.750
3.550
N/A
1111
1.025
1.430
1.835
2.245
2.000
2.800
3.600
N/A
(N/A): Not Available
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 22 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LOW-DROPOUT LINEAR REGULATORS
TYPICAL PERFORMANCE CHARACTERISTICS
(VINx = 3.6V, COUTx = 1µF, TA = 25°C unless otherwise specified.)
Power Supply Rejection Ratio
Dropout Voltage (mV)
60
LDO5
50
40
30
20
LDO1
LDO3
150
100
50
0
0.1
1
10
0
100
50
100
150
200
250
300
Frequency (kHz)
Load Current (mA)
LDO Load Regulation
LDO Output Voltage Noise
LDO5
LDO8
-0.5%
350
ACT5830-010
ACT5830-009
0.0%
VOUT (V)
LDO8
200
ACT5830-008
COUT = 1µF
ILOAD = 150mA
LDO5
70
PSRR (dB)
Dropout Voltage vs. Load Current
250
ACT5830-007
80
CH1
LDO3
LDO1
-1.0%
-1.5%
0
50
100
150
200
250
300
CH1: VOUTx, 1mV/div
TIME: 10ms/div
350
IOUT (mA)
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 23 -
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Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LOW-DROPOUT LINEAR REGULATORS
FUNCTIONAL DESCRIPTIONS
General Description
Capacitor Selection
The ACT5830 features eight high performance, lowdropout, low-noise and low quiescent current LDOs
with high PSRR.
The input capacitor reduces peak currents and
noise at the voltage source. Connect a low ESR
bulk capacitor (>1μF suggested) to the input. Select
this bulk capacitor to meet the input ripple
requirements and voltage rating, rather than
capacitor size.
Programming Output Voltages (VSET)
All LDOs feature independently-programmable
output voltages that are set via the I2C serial
interface, increasing the ACT5830 flexibility while
reducing total solution size and cost.
Set the output voltage by writing to the
LDOx/VSET[ _ ] register. See Table 7:
LDO1234568/VSET[4:0]
and
Table
8:
LDO7/VSET[_] Output Voltage Settings for a
detailed description of voltage programming
options.
Enabling and Disabling LDOs
For information regarding enabling and disabling
the LDOs during the startup and shutdown
sequence section. Once the startup routine is
completed the remaining LDOs can be
enabled/disabled via either the I2C interface or the
TCXO_EN (LDO4), RX_EN (LDO5), TX_EN
(LDO6), and PWR_HOLD (LDO1, LDO2, LDO3,
LDO7, and LDO8).
Reference Bypass Pin
The ACT5830 contains a conference bypass pin
which filters noise from the reference, providing a
low-noise voltage reference to the LDOs. Bypass
REF to G with a 0.01µF ceramic capacitor.
Compensation and Stability
PCB Layout Considerations
The ACT5830’s LDOs provide good DC, AC, and
noise performance over a wide range of operating
conditions, and are relatively insensitive to layout
considerations. When designing a PCB, however,
careful layout is necessary to prevent other circuitry
from degrading LDO performance.
A good design places input and output capacitors
as close to the LDO inputs and output as possible,
and utilizes a star-ground configuration for all
regulators to prevent noise-coupling through
ground. Output traces should be routed to avoid
close proximity to noisy nodes, particularly the SW
nodes of the DC/DC.
REF is a filtered reference noise, and internally has
a direct connection to the linear regulator controller.
Any noise injected onto REF will directly affect the
outputs of the linear regulators, and therefore
special care should be taken to ensure that no
noise is injected to the outputs via REF. As with the
LDO output capacitors, the REF by pass capacitor
should be placed as close to the IC as possible,
with short, direct connections to the star-ground.
Avoid the use of vias whenever possible. Noisy
nodes, such as from the DC/DC, should be routed
as far away from REF as possible.
The LDOs need an output capacitor for stability.
This capacitor should be connected directly
between the output and G pin, as close to the
output as possible, and with a short, direct
connection to maximize device’s performance. To
ensure best performance for the device, the output
capacitor should have a minimum capacitance of
1µF, and ESR value between 10mΩ and 500mΩ.
High quality ceramic capacitors such as X7R and
X5R dielectric types are strongly recommended.
See the Capacitor Selection section for more
information.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 24 -
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Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO1
ELECTRICAL CHARACTERISTICS
(VIN1 = 3.6V, COUT1 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN1 Input Rising
UVLO Hysteresis
VIN1 Input Falling
2.9
5.5
V
3.1
V
V
-1.2
0
2
TA = -40°C to 85°C
-2.5
0
3
Load Regulation Error
IOUT1 = 1mA to 300mA
Dropout Voltage2
UNIT
TA = 25°C
VIN1 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
3
MAX
0.1
Line Regulation Error
Power Supply Rejection Ratio
TYP
3.1
Input Under Voltage Lockout
Output Voltage Accuracy
MIN
0
mV/V
-0.004
%/mA
f = 1kHz, IOUT1 = 300mA, COUT1 = 1µF
60
f = 10kHz, IOUT1 = 300mA, COUT1 = 1µF
50
LDO1 Enabled
20
LDO1 Disabled
0
IOUT1 = 150mA
100
dB
µA
Output Current
Current Limit
VOUT1 = 95% of Regulation Voltage
Current Limit Short Circuit Foldback
VOUT1 = 0V
%
330
200
mV
300
mA
580
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT1, Hysteresis = -1%
89
%
Output Noise
COUT1 = 10µF, f = 10Hz to 100kHz
40
µVRMS
1
Stable COUT1
20
µF
c: VNOM refers to the nominal output voltage level for LDO1 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 25 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO2
ELECTRICAL CHARACTERISTICS
(VIN2 = 3.6V, COUT2 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
MIN
TYP
3.1
Input Under Voltage Lockout
VIN2 Input Rising
UVLO Hysteresis
VIN2 Input Falling
Output Voltage Accuracy
2.9
3.1
V
V
0
2
TA = -40°C to 85°C
-2.5
0
3
IOUT2 = 1mA to 300mA
mV/V
-0.004
%/mA
f = 1kHz, IOUT2 = 300mA, COUT2 = 1µF
60
f = 10kHz, IOUT2 = 300mA, COUT2 = 1µF
50
LDO2 Enabled
20
LDO2 Disabled
0
IOUT2 = 150mA
100
VOUT2 = 95% of Regulation Voltage
330
Current Limit Short Circuit Foldback VOUT2 = 0V
%
0
dB
µA
Output Current
Current Limit
V
-1.2
Load Regulation Error
Dropout Voltage2
5.5
TA = 25°C
VIN2 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
UNIT
0.1
Line Regulation Error
Power Supply Rejection Ratio
3
MAX
200
mV
300
mA
580
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT2, Hysteresis = -1%
89
%
Output Noise
COUT2 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT2
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO2 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 26 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO3
ELECTRICAL CHARACTERISTICS
(VIN1 = 3.6V, COUT3 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN1 Input Rising
UVLO Hysteresis
VIN1 Input Falling
2.9
5.5
V
3.1
V
V
-1.2
0
2
TA = -40°C to 85°C
-2.5
0
3
Load Regulation Error
IOUT3 = 1mA to 100mA
Dropout Voltage2
UNIT
TA = 25°C
VIN3 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
3
MAX
0.1
Line Regulation Error
Power Supply Rejection Ratio
TYP
3.1
Input Under Voltage Lockout
Output Voltage Accuracy
MIN
0
mV/V
-0.004
%/mA
f = 1kHz, IOUT3 = 100mA, COUT3 = 1µF
60
f = 10kHz, IOUT3 = 100mA, COUT3 = 1µF
50
LDO3 Enabled
40
LDO3 Disabled
0
IOUT3 = 50mA
dB
µA
100
Output Current
Current Limit
VOUT3 = 95% of Regulation Voltage
Current Limit Short Circuit Foldback
VOUT3 = 0V
115
%
200
mV
100
mA
180
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT3, Hysteresis = -1%
89
%
Output Noise
COUT3 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT3
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO3 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 27 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO4
ELECTRICAL CHARACTERISTICS
(VIN2 = 3.6V, COUT4 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN2 Input Rising
UVLO Hysteresis
VIN2 Input Falling
2.9
5.5
V
3.1
V
V
-1.2
0
2
TA = -40°C to 85°C
-2.5
0
3
Load Regulation Error
IOUT4 = 1mA to 100mA
Dropout Voltage2
UNIT
TA = 25°C
VIN4 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
3
MAX
0.1
Line Regulation Error
Power Supply Rejection Ratio
TYP
3.1
Input Under Voltage Lockout
Output Voltage Accuracy
MIN
0
mV/V
-0.004
%/mA
f = 1kHz, IOUT4 = 100mA, COUT4 = 1µF
70
f = 10kHz, IOUT4 = 100mA, COUT4 = 1µF
60
LDO4 Enabled
40
LDO4 Disabled
0
IOUT4 = 50mA
dB
µA
100
Output Current
Current Limit
VOUT4 = 95% of Regulation Voltage
Current Limit Short Circuit Foldback
VOUT4 = 0V
115
%
200
mV
100
mA
180
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT4, Hysteresis = -1%
89
%
Output Noise
COUT4 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT4
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO4 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 28 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO5
ELECTRICAL CHARACTERISTICS
(VIN1 = 3.6V, COUT5 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN1 Input Rising
UVLO Hysteresis
VIN1 Input Falling
2.9
V
3.1
V
V
0
2
TA = -40°C to 85°C
-2.5
0
3
IOUT5 = 1mA to 150mA
mV/V
-0.004
%/mA
f = 1kHz, IOUT5 = 150mA, COUT5 = 1µF
70
f = 10kHz, IOUT5 = 150mA, COUT5 = 1µF
60
LDO5 Enabled
40
LDO5 Disabled
0
IOUT5 = 80mA
dB
µA
100
VOUT5 = 95% of Regulation Voltage
165
Current Limit Short Circuit Foldback VOUT5 = 0V
%
0
Output Current
Current Limit
5.5
-1.2
Load Regulation Error
Dropout Voltage2
UNIT
TA = 25°C
VIN5 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
3
MAX
0.1
Line Regulation Error
Power Supply Rejection Ratio
TYP
3.1
Input Under Voltage Lockout
Output Voltage Accuracy
MIN
200
mV
150
mA
260
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT5, Hysteresis = -1%
89
%
Output Noise
COUT5 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT5
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO5 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 29 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO6
ELECTRICAL CHARACTERISTICS
(VIN2 = 3.6V, COUT6 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN2 Input Rising
UVLO Hysteresis
VIN2 Input Falling
2.9
V
3.1
V
V
0
2
TA = -40°C to 85°C
-2.5
0
3
IOUT6 = 1mA to 150mA
mV/V
-0.004
%/mA
f = 1kHz, IOUT6 = 150mA, COUT6 = 1µF
70
f = 10kHz, IOUT6 = 150mA, COUT6 = 1µF
60
LDO6 Enabled
40
LDO6 Disabled
0
IOUT6 = 80mA
dB
µA
100
VOUT6 = 95% of Regulation Voltage
165
Current Limit Short Circuit Foldback VOUT6 = 0V
%
0
Output Current
Current Limit
5.5
-1.2
Load Regulation Error
Dropout Voltage2
UNIT
TA = 25°C
VIN6 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
3
MAX
0.1
Line Regulation Error
Power Supply Rejection Ratio
TYP
3.1
Input Under Voltage Lockout
Output Voltage Accuracy
MIN
200
mV
150
mA
260
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT6, Hysteresis = -1%
89
%
Output Noise
COUT6 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT6
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO6 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 30 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO7
ELECTRICAL CHARACTERISTICS
(VIN1 = 3.6V, COUT7 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN1 Input Rising
UVLO Hysteresis
VIN1 Input Falling
TA = 25°C
Output Voltage Accuracy
TA = -40°C to 85°C
2.9
UNIT
5.5
V
3.1
V
V
VNOM < 1.3V, IOUT = 10mA
-2.4
0
2
VNOM ≥ 1.3V, IOUT = 10mA
-1.2
0
2
VNOM < 1.3V, IOUT = 10mA
-5
0
3
VNOM ≥ 1.3V, IOUT = 10mA
-2.5
0
3
VIN7 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Load Regulation Error
IOUT7 = 1mA to 250mA
Dropout Voltage2
3
MAX
0.1
Line Regulation Error
Supply Current per Output
TYP
3.1
Input Under Voltage Lockout
Power Supply Rejection Ratio
MIN
0
mV/V
-0.004
%/mA
f = 1kHz, IOUT7 = 250mA, COUT7 = 1µF
60
f = 10kHz, IOUT7 = 250mA, COUT7 = 1µF
50
LDO7 Enabled
20
LDO7 Disabled
0
IOUT7 = 100mA
100
dB
µA
Output Current
Current Limit
VOUT7 = 95% of Regulation Voltage
Current Limit Short Circuit
Foldback
VOUT7 = 0V
275
%
200
mV
250
mA
410
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High
Threshold
VOUT7, Hysteresis = -1%
89
%
Output Noise
COUT7 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT7
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO7 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 31 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
LDO8
ELECTRICAL CHARACTERISTICS
(VIN2 = 3.6V, COUT8 = 1µF, TA = 25°C unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Supply Range
VIN2 Input Rising
UVLO Hysteresis
VIN2 Input Falling
2.9
5.5
V
3.1
V
V
-1.2
0
2
TA = -40°C to 85°C
-2.5
0
3
Load Regulation Error
IOUT8 = 1mA to 250mA
Dropout Voltage2
UNIT
TA = 25°C
VIN8 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V
Supply Current per Output
3
MAX
0.1
Line Regulation Error
Power Supply Rejection Ratio
TYP
3.1
Input Under Voltage Lockout
Output Voltage Accuracy
MIN
0
mV/V
-0.004
%/mA
f = 1kHz, IOUT8 = 250mA, COUT8 = 1µF
60
f = 10kHz, IOUT8 = 250mA, COUT8 = 1µF
50
LDO8 Enabled
20
LDO8 Disabled
0
IOUT8 = 100mA
100
dB
µA
Output Current
Current Limit
VOUT8 = 95% of Regulation Voltage
Current Limit Short Circuit Foldback
VOUT8 = 0V
275
%
200
mV
250
mA
410
mA
0.45 x ILIM
Internal Soft-Start
100
µs
Power Good Flag High Threshold
VOUT8, Hysteresis = -1%
89
%
Output Noise
COUT8 = 10µF, f = 10Hz to 100kHz
40
µVRMS
Stable COUT8
1
20
µF
c: VNOM refers to the nominal output voltage level for LDO8 as defined by the Ordering Information section.
2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 32 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
ELECTRICAL CHARACTERISTICS
(VCHG_IN = 5V, VBAT = 3.6V, VSET[ ] = [0101], ISET[ ] = [0101], TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
CHG_IN Operating Range
TYP
4.2
UVLO Threshold
CHG_IN Voltage Rising
UVLO Hysteresis
CHG_IN Voltage Falling
Battery Termination Voltage
Line Regulation
MIN
3.75
4
MAX
UNIT
6
V
4.25
V
500
4.179
VCHG_IN = 4.5V to 5.5V, IBAT = 10mA
mV
4.200
4.221
0.2
PMOS On Resistance
V
%/V
0.3
0.5
Ω
500
550
mA
Charge Current
VBAT = 3.8V
VICHG Voltage
VVICHG /IBAT
Precondition Charge Current
VBAT = 2.8V
Precondition Threshold Voltage
VBAT Voltage Rising
Precondition Threshold Hysteresis
VBAT Voltage Falling
150
mV
End-of-Charge Current Threshold
VBAT = 4.1V
50
mA
32
ms
200
mV
450
2.3
mV/mA
35
50
65
mA
2.75
2.9
3.0
V
End-of-Charge Qualification Period
Charge Restart Threshold
VSET[ ] - VBAT, VBAT Falling
BATID High Input Voltage
VBATID Voltage Rising
BATID Low Input Voltage
VBATID Voltage Falling
2
V
BATID Leakage Current
VCHG_IN = 4.5V
1
µA
Thermal Regulation Threshold
BAT Reserve Leakage Current
CHG_IN Supply Current
Precondition Timeout Period
Total Charging Timeout Period
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
2.5
V
105
°C
SLEEP, SUSPEND, or TIMER-FAULT
state
0.4
5
µA
VnENCHG > 1.4V
65
100
µA
SLEEP, SUSPEND, or TIMER-FAULT
state
200
500
µA
PRECONDITION, FAST-CHARGE, or
TOP-OFF state
0.8
1.2
mA
TIMOSET[ ] = [00]
1
hr
TIMOSET[ ] = [01]
1.43
hr
TIMOSET[ ] = [10]
2
hr
TIMOSET[ ] = [11]
INFINITE
TIMOSET[ ] = [00]
3
hr
TIMOSET[ ] = [01]
4.3
hr
TIMOSET[ ] = [10]
6
hr
TIMOSET[ ] = [11]
INFINITE
- 33 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
Figure 3:
Battery Charger Algorithm
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 34 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
Li+ BATTERY CHARGER REGISTER DESCRIPTIONS
Note: See Table 1 for default register settings.
Table 8:
Battery Charger (CHGR) Control Register Map
DATA
ADDRESS
D7
D6
08h
D5
D4
D3
ISET
09h
TIMOSET
D2
D1
D0
VSET
R
R
BATFLT
TIMOFLT
R
CHGRSTAT
VINPOK
0Ah
R
R
R
R
R
R
R
R
0Bh
R
R
R
R
R
R
CHGROK
SUSCHG
R: Read-Only bits. Default Values May Vary.
Table 9:
Battery Charger (CHGR) Control Register Bit Descriptions
ADDRESS
NAME
BIT
ACCESS
FUNCTION
DESCRIPTION
08h
VSET
[2:0]
R/W
Charge Termination
Voltage Selection
See Table 11
[3]
R
08h
READ ONLY
08h
ISET
[7:4]
R/W
Maximum Charge Current
Selection
09h
VINPOK
[0]
R
Input Supply Power-OK
09h
CHGRSTAT
[1]
R
Charging Status
[2]
R
09h
TIMOFLT
[3]
R
Timeout Fault
09h
BATFLT
[4]
R
Battery Removed Fault
[5]
R
[7:6]
R/W
[7:0]
R
09h
TIMOSET
0Ah
Input Power is OK
0
Not Charging
1
Charging
0
No Timeout Fault
1
Timeout Fault
0
Battery Not Removed
1
Battery Removed
See Table 12
READ ONLY
[0]
R/W
Suspend Charging
0Bh
CHGROK
[1]
R
Charge Status
[7:2]
R
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
1
Charge Timeout Select
SUSCHG
Innovative PowerTM
Input Power is not OK
READ ONLY
0Bh
0Bh
0
READ ONLY
09h
09h
See Table 10
0
Charging Enabled
1
Charging Disabled
0
Charging Error Occurred
1
Charging OK
READ ONLY
- 35 -
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Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
Li+ BATTERY CHARGE REGISTER DESCRIPTIONS CONT’D
Table 10:
Table 11:
CHGR Charge Current Settings
Charge Termination Voltage Settings
CHGR/ISET[3:0]
FAST CHARGE CURRENT
SETTINGS (mA)
CHGR/VSET[3:0]
CHARGE TERMINATION
VOLTAGE (V)
0000
100
000
4.10
0001
300
001
4.12
0010
350
010
4.14
0011
400
011
4.16
0100
450 (default)
100
4.18
0101
500
101
4.20 (default)
0110
550
110
4.22
0111
600
111
4.24
1000
650
1001
700
1010
750
1011
800
1100
850
1101
900
1110
950
1111
1000
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 36 -
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Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
TYPICAL PERFORMANCE CHARACTERISTICS
(COUTx = 1µF X7R, VBAT = VINx = VOUTx + 0.5V, TA = 25°C, unless otherwise specified.)
Battery Termination Voltage vs. Temperature
2000
1750
VVICHG (mV)
4.25
ACT5830-012
4.28
VBAT (V)
VICHG Voltage vs. IBAT
2250
ACT5830-011
4.31
4.22
4.19
4.16
1500
1250
1000
750
500
4.13
VCHG_IN = 5V
VBATID = 2.5V
ISET[3:0] = [1111]
250
ISET[3:0] = [1111]
4.10
-40
-20
0
20
40
60
80
100
0
0
120
200
400
Temperature (°C)
800
1000
IBAT (mA)
MOSFET Resistance vs. Temperature
Precondition Threshold Voltage vs. Temperature
VBAT Rising
320
315
RDSON (mΩ)
3.0
ACT5830-014
325
ACT5830-013
3.1
VPRECONDITION (V)
600
2.9
2.8
VBAT Falling
310
305
300
295
290
2.7
285
2.6
-40
280
-20
0
20
40
60
80
100
-40
120
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
BAT Reverse Leakage Current vs. Temperature
ACT5830-015
5
IBAT (µA)
4
3
VCHG_IN = 0V or Floating
VBAT = 5V
2
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 37 -
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Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
FUNCTIONAL DESCRIPTIONS
CC/CV regulation loop, which regulates either
current or voltage as necessary to ensure fast and
safe charging of the battery.
General Description
The ACT5830's internal battery charger is an
intelligent, stand-alone CC/CV (constantcurrent/constant-voltage), linear-mode single-cell
charger for Lithium-based cell-chemistries. This
device incorporates current and voltage sense
circuitry, an internal power MOSFET, thermalregulation circuitry, a complete state-machine to
implement charge safety features, and circuitry that
eliminates the reverse-blocking diode required by
conventional charger designs. The ACT5830
battery charger operates independently of the
regulators, and is automatically enabled whenever
a valid input supply is available.
In a normal charge cycle, this loop regulates the
current to the value set in the CHGR/ISET register.
Charging continues at this current until the battery
cell voltage reaches the programmed termination
voltage, as defined in the CHGR/VSET register. At
this point the CV loop takes over, and charge
current is allowed to decrease as necessary to
maintain charging at the termination voltage.
Programming the Charge Current (ISET[_])
In order to accommodate both USB and ACpowered inputs with a minimum of external
components, the ACT5830 features a I2Cprogrammable fast-charge current that requires no
external current-setting components. The
CHGR/ISET register sets ISET to any value greater
than [0000] to program the maximum charge
current to values in the 300mA to 1A via software.
See for a detailed list of programmable charge
currents.
The ACT5830's battery charger features softwareprogrammable fast-charge current, charge
termination voltage, charge safety timeout period.
The ACT5830's battery charger can accept input
supplies in the 4.3V to 6V range, making it
compatible with lower-voltage inputs such as 5-6V
wall-cubes and USB ports. The battery charger,
along with LDO1, LDO2, and LDO3, is enabled and
initiates a charging cycle whenever an input supply
is present.
Enabling/Disabling the Charger
The ACT5830 is enabled when the voltage applied
to CHG_IN is greater than the voltage at BAT and is
greater than 4.0V, and nENCHG is asserted low.
The charger is disabled whenever nENCHG is high,
independent of the voltages at battery and CHG_IN.
The charger may also be disabled via the I2C
interface.
For more information about enabling and disabling
the charger, see the System Startup & Shutdown
section.
Operation Without a battery
The ACT5830's charger is designed to operate with
or without a battery connected. When a battery is
connected, a normal charging cycle is performed as
described below. If no battery is present, however,
the charger will regulate the voltage at BAT to the
voltage programmed by CHGR/VSET[_] to power
the system.
Note that the actual charging current may be lower
than the programmed fast-charge current, due to
the ACT5830's thermal regulation loop. See the
Thermal Regulation section for more information.
Measuring the Charge Current
In order to ease monitoring of the charge current,
the ACT5830 generates a voltage at VICHG that is
proportional to the charge current. The gain is
typically 2.47mV/mA, and this voltage can be easily
read by a system ADC. VICHG is high-impedance
in shutdown.
Thermal Regulation
The ACT5830 features an internal thermal feedback
loop that reduces the charging current as necessary
to ensure that the die temperature does not rise
beyond the thermal regulation threshold of 115°C.
This feature protects the ACT5830 against
accessing JUNCTION temperature, and allows the
ACT5830 to be used in aggressive thermal designs
without risk of damage. Note that attention to good
thermal design is still required to achieve the fastest
possible charge time.
CC/CV Regulation Loop
At the core of the ACT5830's battery charger is a
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 38 -
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Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
FUNCTIONAL DESCRIPTIONS CONT’D
TOP-OFF State
Charge Safety Timer
While monitoring the charge cycle, the ACT5830
utilizes a charge safety timer to help identify
damaged cells and to ensure that the cell is
charged safely. Three timeout options of 1 hour,
1.43 hours, and 2 hours are available, as
programmed by the CHGR/TIMOSET register, and
a timer-disable option is also available for systems
that do not require the ACT5830 to control charge
timeouts.
In the TOP-OFF state, the cell is charged in
constant-voltage (CV) mode. With the charge
current limited by the internal chemistry of the cell,
decreases as charging continues. During a normal
charging cycle charging proceeds until the charge
current decreases beyond the End-Of-Charge
(EOC) threshold, defined as 10% of ISET. When
this happens, the state machine terminates the
charge cycle and jumps to the SLEEP state.
The bit assignments for each timeout period are set
as follows:
SLEEP State
Table 12:
TIMOSET[ ] Timeout Period Options
TIMOSET PRECONDITION TOTAL CHARGING
TIMEOUT
TIMEOUT
[1:0 ]
0
0
1 hour
3 hours
0
1
1.43 hours
4.3 hours
1
0
2 hours
6 hours
1
1
INFINITE
INFINITE
In SLEEP mode the ACT5830 presents a highimpedance to the battery, allowing the cell to “relax”
and minimizing battery leakage current. The
ACT5830 continues to monitor the cell voltage,
however, so that it can re-initiate charging cycles as
necessary to ensure that the cell remains fully
charged. Under normal operation, the state
machine initiates a new charging cycle by jumping
to the FAST-CHARGE state when VBAT drops below
the Charge Termination Threshold (programmed by
VSET) by more than the Charge Restart Threshold
of 200mV (typ).
SUSPEND State
CHGR State-Machine
PRECONDITION State
A new charging cycle begins with the
PRECONDITION state. In this state, the cell is
charged at a reduced current of 10% of ISET, the
programmed fast charge current. During a normal
charge cycle, charging continues at this rate until
VBAT reaches the Precondition Threshold Voltage of
2.9V (typ), at which point the charging state
machine jumps to its FAST-CHARGE state. If VBAT
does not reach the Precondition Threshold Voltage
before the Precondition timeout period expires, then
a damaged cell is detected and the state machine
jumps to the TIMEOUT-FAULT State.
FAST-CHARGE State
In FAST-CHARGE mode, the charger operates in
constant-current (CC) mode and charges the cell at
the current programmed by CHGR/ISET. During a
normal charge cycle fast-charge continues until
VBAT reaches the termination voltage programmed
by VSET, at which point the state machine jumps to
the TOPOFF state. If VBAT does not reach VSET
before the total time out period expires then the
state-machine will jump to the “SLEEP” state.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
The ACT5830 features a user-selectable suspendcharge mode (SUSCHG), which disables the
charger but keeps other circuitry functional.
Charging continues in the SUSPEND state until
CHGR/SUSPEND is cleared, at which point the
charge timer is reset and the state machine jumps
to the PRECHARGE state.
Suspend charge by setting CHGR/SUSCHG = [1].
Permit charging by clearing CHGR/SUSCHG to [0].
TIMEOUT-FAULT State
In order to prevent continued operation with a
damaged cell, there is no direct path to resume
charging once a Timeout Fault occurs. In order to
resume charging, the state machine must jump to
the SUSPEND state as a result of any of the
following events:
1) Microprocessor Sets CHGR/SUSCHG to [1],
2) Microprocessor Pulls nENCHG high,
The input supply is removed or the input supply
voltage drops below the UVLO threshold (4V), or
the battery is removed. Once any of these events
occur, the state machine jumps to the SUSPEND
- 39 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
SINGLE-CELL Li+ BATTERY CHARGER (CHGR)
FUNCTIONAL DESCRIPTIONS CONT’D
state and charging can resume as defined by
Figure 4.
NO BAT State
The ACT5830 charger has been designed so that it
will provide system power when there is no battery
present. If the battery is not present at any time
while a valid input voltage (>4V) is applied to
CHG_IN, the ACT5830 will enable the charger and
regulate the output at the voltage programmed by
CHGR/VSET[ ], simulating a battery-present
condition. The output current of the charger in this
state is default to 1000mA to ensure full operation
of the phone. When operating in this state, the
charge timers are disabled but the thermal
regulation loop is active. It is important for the
application designer to consider both the power
available from the charger as well as the thermal
design in order to ensure proper system operation
in this state. The user can prevent this operation by
either:
1) Pull nENCHG high, or Setting SUSCHG = [1].
If the battery is reconnected while operating in the
NO BAT state, the state machine resets the charge
timers and jumps to the PRECONDITION state.
Reverse Battery
The ACT5830 includes internal circuitry that
eliminates the need for series blocking diodes,
reducing solution size and cost as well as dropout
voltage relative to conventional battery chargers.
When the input supply is removed, when VIN goes
below the ACT5830's under voltage-lockout (UVLO)
voltage, or when VIN drops below VBAT, the
ACT5830 automatically goes into SUSPEND mode
and reconfigures its power switch to minimize
current drain from the battery.
Figure 4:
Charger State Diagram
ANY STATE
ANY STATE
V BATID > 2.5V AND
V CHG _IN > UVLO AND
CHGR/SUSCHG[ ] = [0]
V CHG_IN < V BAT OR
V CHG_IN < UVLO OR
CHGR/SUSCHG[ ] = [1]
LDO-MODE
SUSPEND
V
BA
TI
D
<
2.
BATTERY PRESENT AND
V CHG_IN > V BAT AND
V CHG_IN > UVLO AND
CHGR/SUSCHG[ ] = [0]
0V
T > TIMOSET[ ] AND
V BAT < 2.9V
TIMEOUT-FAULT
PRECONDITION
V BAT > 2.9V
Charge Timers
Cleared
FAST-CHARGE
V BAT = VSET[ ]
T > TIMOSET[ ]
TOP-OFF
Charge Timers
not Cleared or
I BAT > ISET[ ]/10
I BAT < ISET[ ]/10
or T > TIMOSET[ ]
DELAY
T > 32ms
SLEEP
V BAT < VSET[ ] – 200mV
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 40 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT5830
®
Rev 2, 20-Jan-11
PACKAGE OUTLINE AND DIMENSIONS
PACKAGE OUTLINE
TQFN55-40 PACKAGE OUTLINE AND DIMENSIONS
D
D/2
SYMBOL
E/2
A
MIN
MAX
A
0.700
0.800
0.028
0.031
A1
0.000
0.050
0.000
0.002
0.008 REF
0.150
0.250
0.006
0.010
D
4.900
5.100
0.193
0.201
E
4.900
5.100
0.193
0.201
D2
3.450
3.750
0.136
0.148
E2
3.450
3.750
0.136
0.148
R
b
0.200 REF
b
L
D2
L
MAX
e
A1
A3
DIMENSION IN
INCHES
MIN
A3
E
DIMENSION IN
MILLIMETERS
0.400 BSC
0.300
0.500
0.300
0.016 BSC
0.012
0.020
0.012
e
E2
R
Active-Semi, Inc. reserves the right to modify the circuitry or specifications without notice. Users should evaluate each
product to make sure that it is suitable for their applications. Active-Semi products are not intended or authorized for use
as critical components in life-support devices or systems. Active-Semi, Inc. does not assume any liability arising out of
the use of any product or circuit described in this datasheet, nor does it convey any patent license.
Active-Semi and its logo are trademarks of Active-Semi, Inc. For more information on this and other products, contact
[email protected] or visit http://www.active-semi.com.
®
is a registered trademark of Active-Semi.
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
- 41 -
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.