ACT2802 Datasheet - Active-Semi

ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
5V/2.5A Backup Battery Pack Manager
FEATURES
APPLICATIONS
• Dedicated Single Chip Solution for Mobile Power
•
•
•
•
•
With Minimal Component Count
5V/2.5A Constant Output Current Limit in Boost
Mode
2.5A Switching Charger Current Limit
Programmable 4.1V to 4.35V Battery Voltage
95% Boost Efficiency (Vbat=4.1V)
•
•
•
• Adaptive to 10mA-2400mA Input Sources
• Battery Disconnection at Output Short
• <10µA Low Battery Leakage Current at HZ
GENERAL DESCRIPTION
ACT2802/ACT2802B/ACT2802C is a space-saving
and high-performance low-profile single-chip
solution for backup battery pack and standalone
battery charger. ACT2802/ACT2802B/ACT2802C
integrates all the functions that a backup battery
pack needs, including switching charger, boost
converter and LED indication.
Mode During Storage
• Boost Auto Turn-off at No Load and Push
•
•
•
•
•
•
•
•
•
•
•
•
Backup Battery Pack
Power Bank
Mobile Power
Standalone Battery Charger with USB Output
Button Turn-on
Battery Over Current, Over Voltage, Over
Temperature and Short Circuit Protections
Boost Auto Startup with Load Detection
Up to 3.0A Input Current Limit with Prioritized
Power Path to Output
5V+/-100mV Output Voltage in Boost Mode
1.1MHz/0.55MHz Switching Frequencies
2.2uH Inductor and Low Profile Ceramic
Capacitor
4 LEDs Battery Level and Status Indication
Battery Impedance Compensation
Full Cycle of Battery Charge Management
Preconditioning, Fast Charge, Top off and End
of Charge
Charge Current Foldback at 110°C Die
Temperature
IC Over Temperature Protection at 160°C
QFN4x4-24 Package
ACT2802/ACT2802B/ACT2802C operates at
1.1MHz for switching charger and 0.55MHz for
boost converter allowing tiny external inductor and
capacitors. ACT2802/ACT2802B/ACT2802C
provides a direct power path from input to output
with programmable current limit while providing
power to switching charger. Output has higher
priority than battery charger if the programmed
input current limit is reached.
ACT2802/ACT2802B/ACT2802C charges battery
with full cycle of preconditioning, fast charge with
constant current and constant voltage until end of
charge. The battery charger is thermally regulated
at 110°C with charge current foldback.
ACT2802/ACT2802B/ACT2802C boost converter
steps battery voltage up to 5V. Boost converter
features high efficiency, constant current regulation,
short circuit protection and over voltage protection.
ACT2802/ACT2802B/ACT2802C provides 3.5mA
constant currents to drive 4 LEDs to indicate
battery level and charge status. Battery impedance
is compensated for battery level indication.
Boost Output Voltage (V)
Boost CC/CV Profile
5.5
VBAT =3.2V
5.0
VBAT =3.7V
4.5
4.0
VBAT =4.1V
3.5
3.0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
Output Current (A)
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Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
ORDERING INFORMATION
LOW BATTERY
FLASHLIGHT
LEVEL ALARM
PB TURN
OFF BOOST
BOOST LED INDICATION
PACKAGE
(LED ALWAYS ON)
PART NUMBER
OUTPUT
ACT2802QL-T
(Not Recommended
for New Designs)
5V/2.5A
No
No
Yes
No
QFN44-24
ACT2802QL-T1026
5V/2.5A
Yes
No
Yes
No
QFN44-24
ACT2802BQL-T
5V/2.5A
Yes
Yes
No
Yes
QFN44-24
ACT2802CQL-T
5V/2.5A
Yes
Yes
No
No
QFN44-24
PIN CONFIGURATION
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Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
HZ
Boost/high-Z mode enable pin, internally pulled up by a 3MΩ resistor to battery. When
HZ pin is pulled ground, boost is enabled if VIN is not present.
2
PB
Push button input, connect a push button from this pin to AGND, internally pulled up
by a 3MΩ resistor to battery. PB starts up boost converter if HZ pin is grounded and
VIN is not present. For ACT2802B/ACT2802C, if this pin is pushed for 3s, flashlight is
enabled.
3
AGND
4
nPG
Drive external P-FET to protect output short circuit and leakage during shutdown. nPG
pin is pulled up to VOUT internally. nPG pin is pulled low if VOUT is in the range.
5
ILIM
Input current limit setting pin. Connect a resistor from this pin to AGND to set the input
current limit. The current setting ranges from 1.0A-3.0A.
6
VIN
USB or AC adaptor input. When VIN is valid, charge and power path is enabled.
7, 8
VOUT
9, 10
SW
11
PGND
Power ground. PGND is connected to the source of low-side N-channel MOSFET and
the MOSFET’s gate driver. PGND must be connected to AGND externally through
ground plane.
12
BAT
Battery input. Connected to the battery pack positive terminal to provide power in HighZ mode. Bypass to PGND with a high quality ceramic capacitor placed as close to the
IC as possible.
13
CSP
Positive terminal of charge current sense input. Kevin sense is required with 10nF
ceramic capacitor right across CSP and CSN pins.
14
CSN
Negative terminal of charge current sense input.
15
IOST
Output current setting. Connect a resistor from this pin to AGND to set output constant
current. The current setting ranges from 1.0A-2.5A.
16
ICST
Fast charge current setting pin. Connect a resistor from this pin to AGND to set the
charge current. The current setting ranges from 1.0A-2.5A.
17
BTV
Battery termination voltage setting. Connect a resistor from this pin to AGND to
program battery charge termination voltage.
18
LED1
Battery level indicator. An internal 3.5mA sink current limit is built in.
19
LED2
Battery level indicator. An internal 3.5mA sink current limit is built in.
20
LED3
Battery level indicator. An internal 3.5mA sink current limit is built in.
21
LED4
Battery level indicator. An internal 3.5mA sink current limit is built in.
22
RIMC
Battery impendence compensation input. Connect to a resistor from this pin to APNG
to program the battery impedance.
23
BLVS
Battery level voltage shift. Connect a resistor from this pin to AGND to shift the battery
LED indication thresholds.
24
TH/FLD
Logic Ground. AGND must be connected to PGND externally through ground plane.
Output pin. Bypass to PGND with a high quality low ESR and ESL ceramic capacitor
placed as close to the IC as possible.
Internal switch to output inductor terminal.
TH: ACT2802QL-T/ACT2802-T1026
Temperature sensing input. Connect to battery thermistor terminal. If no use, put 10K
pulled down resistor.
FLD: ACT2802B/ACT2802C
Open-drain flashlight driver. A internal switch can handle up to 50mA.
25
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EP
Exposed pad. Must be soldered to ground on the PCB.
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Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
ABSOLUTE MAXIMUM RATINGSc
PARAMETER
VALUE
UNIT
-0.3 to 6.5
V
Junction to Ambient Thermal Resistance
40
°C/W
Maximum Power Dissipation
2.5
W
Operating Ambient Temperature
-40 to 85
°C
Operating Junction Temperature
-40 to 150
°C
Storage Junction Temperature
-40 to 150
°C
300
°C
All the Pin to PGND and AGND
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.
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Input Current Limit
Input Voltage Range
4.5
VIN Over Voltage Protection
VIN rising, VIN_OVP
Input Voltage Validation Time
VIN_UVLO<VIN<VIN_OVP
Input Current Limit Setting Range
RILIM=0.806kΩ—2.4kΩ
Input Current Limit
RILIM=0.806kΩ
5.5
6.0
5.5
V
6.5
V
32
1.0
ms
3.0
3.0
Input Current Limit Gain
A
A
2000
Leakage Current from VOUT to VIN in Boost
Mode
3.0V<VBAT<4.35V, Ta=25℃
0
10
µA
Battery Discharge Current in High-Z Mode
3.0V<VBAT<4.35V, Ta=25℃
7.5
15
µA
Power Switches
VIN-to-VOUT FET on Resistance
80
mΩ
VOUT-to-SW FET on Resistance
60
mΩ
SW-to-PGND FET on Resistance
65
mΩ
Buck Converter
Switching Frequency
High Side Switch Peak Current Limit
-15%
1.1
4.5
6
A
100
ns
Minimum On-time
+15%
MHz
Over Temperature Protection (OTP)
OTP rising
160
℃
OTP Hysteresis
OTP falling
35
℃
Charge Mode
Charge Current Setting Range
Rcs=25mΩ, RICST=20kΩ—50kΩ
Charge Current Setting (ICHRG)
Rcs=25mΩ, RICST=43.2kΩ
1.0
Thermal Regulation Temperature
Battery Adjust Voltage(VBAJ)
Rbtv=25kΩ
End of Charge (EOC) Voltage
-0.5%
2.5
A
2.1
A
110
℃
0.1
V
4.1+VBAJ
0.5%
V
EOC Voltage Accuracy
Rbtv=0
4.1
V
Battery Over Voltage Threshold
VBAT rising
4.6
V
Battery Over Voltage Threshold Hysteresis
VBAT falling
200
mV
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Fast Charge Current
VBAT=3.5V
Precondition Charge Current
Precondition Voltage Threshold
MIN
TYP
MAX UNIT
ICHRG
A
2.4V≤VBAT≤2.8V, Percent of ICHRG
10
%
VBAT rising, Rbtv=0
2.8
V
130
mV
Precondition Voltage Threshold Hysteresis
Low VBAT Charge Current
VBAT=1V, RICST=43.2kΩ
200
mA
EOC Current Threshold
VBAT=4.2V, percent of the fast
charge current
15
%
200
mV
Charge Restart Voltage Threshold
TH Upper Temperature Voltage Threshold
Cold detect NTC thermistor,
ACT2802QL-T/ACT2802-T1026
1.5
V
TH Lower Temperature Voltage Threshold
Hot detect NTC thermistor,
ACT2802QL-T/ACT2802-T1026
0.3
V
TH Hysteresis
ACT2802QL-T/ACT2802-T1026
50
mV
TH Internal Pull-up Current
ACT2802QL-T/ACT2802-T1026
60
µA
LED Flash Frequency
LED flash 1s on and 1s off
0.5
Hz
Charge Current Foldback
Charge Current Reduction Threshold1 of Vout1 Starting foldback point
Charge Current Reduction Threshold2 of Vout1
4.59
Stop foldback point, RCS=25mΩ,
RICST=43.2kΩ
4.7
4.81
4.57
V
V
Boost Mode
Input Voltage Operation Range
3.0
Switching Frequency
-15%
0.55
4.5
V
+15%
MHz
Input Voltage UVLO
VBAT rising
3.3
V
Input Voltage UVLO Hysteresis
VBAT falling
400
mV
Output Voltage (VOUT)
Ta=25℃
Output Voltage Accuracy
All conditions
4.97
5.05
5.10
V
-3
VOUT
2
%
80mA-1A-80mA, 0.1A/us
4.75
5.25
V
1A-2.0A-1A, 0.1A/us
4.7
5.25
V
Output Voltage Transient Response
Output Over Voltage Protection
VOUT rising
5.7
V
Output Over Voltage Protection Hysteresis
VOUT falling
300
mV
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Output Current Regulation Range
Rcs=25mΩ, RIOST=37.4kΩ—93.7kΩ
Output Current Limit
Rcs=25mΩ, RIOST=91kΩ
2.4
A
The Maximum Voltage Across VRcs
All conditions
200
mV
100
ns
1.0
Minimum On-Time
2.5
A
Low Side Switch Peak Current Limit
VBAT=3.6V, VOUT=5V,
ACT2802-T1026/ACT2802B/ACT2802C
5.6
6.8
A
Low Side Switch Peak Current Limit
VBAT=3.6V, VOUT=5V, ACT2802QL-T
4.9
6.9
A
400
µs
VOUT falling
4.25
V
VOUT rising
4.6
V
3
ms
Soft-Startup Time
Under Voltage Protection (UVP Threshold)
UVP Blanking Time During Startup
UVP Sense Detection Time
VOUT falling
20
µs
Restart After UVP
Hiccup mode
2
s
Light Load Current Shut off Threshold
VBAT=3.7V, Rcs=25mΩ,RIOST=91kΩ
40
ACT2802-T1026/ACT2802B/ACT2802C
45
s
ACT2802QL-T
90
s
HZ Pin High Voltage
HZ voltage rising
0.9
HZ Pin Low Voltage
HZ voltage falling
100
mA
Light Load Current Detect Time
0.4
1.4
V
0.75
V
3
MΩ
ACT2802-T1026
1.5
s
ACT2802QL-T
3.0
s
ACT2802B/ACT2802C
30
ms
ACT2802QL-T/ACT2802-T1026
100
ms
PB is pushed and released,
ACT2802QL-T/ACT2802-T1026/ACT2802C
5
s
TRANTIME
2
s
HZ Internal Pull-up Resistor
PB Turn off Boost Time
PB Turn on Boost Time
LED Indication Time
Mode Transition
Transition Waiting Time between
Charge Mode and Boost Mode
Battery Level Indication
Battery Impedance Compensation
Range
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40
-7-
500
mΩ
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Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
Battery Impedance Compensation
Rcs=25mΩ, RIMC=200kΩ
200
PB High Input Voltage
PB voltage rising
0.9
PB Low Input Voltage
PB voltage falling
0.4
MAX UNIT
mΩ
1.4
V
0.75
V
3
MΩ
Flashlight rising, ACT2802B/ACT2802C
3.3
V
Flashlight Voltage UVLO Threshold Flashlight falling, ACT2802B/ACT2802C
2.9
V
Flashlight Driver Current
The current at FLD pin, ACT2802B/ACT2802C
50
mA
PB Turn on Flashlight Time
ACT2802B/ACT2802C
3.0
s
PB Turn off Flashlight Time
ACT2802B/ACT2802C
3.0
s
PB Internal Pull-up Resistor
Flashlight Driver
Flashlight Voltage UVLO
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
FUNCTIONAL BLOCK DIAGRAM FOR ACT2802QL-T/ACT2802-T1026
FUNCTIONAL BLOCK DIAGRAM FOR ACT2802B/ACT2802C
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
FUNCTIONAL DESCRIPTION
ACT2802/ACT2802B/ACT2802C is a complete
battery charging and discharging power
management solution for applications of single-cell
lithium-based backup battery pack or power bank.
There is a power path from input to output with
programmable input current limit. When output is
over loaded, the input switch Q1 starts going into
linear mode and thus output voltage starts to drop.
If output voltage drops below 4.25V, the input
switch Q1 turns off and restart in 2 seconds.
With the advanced ACT2802/ACT2802B/
ACT2802C architecture, a synchronous buck/boost
converter is connected from VOUT to switching
node (SW). With the bidirectional architecture, the
converter could be configured as either buck to
charge battery or boost to discharge battery. With
switching charger and discharger, the higher charge
current and higher conversion
efficiency are
achieved.
ACT2802-T1026 system operation flow chart as
shown in Figure 1, and ACT2802B/ACT2802C
system operation flow chart as shown in Figure 2.
Any transitions between boost mode and charge
mode go through HZ mode by turning off all the
switches Q1-Q3 into HZ mode for 2 seconds before
enabling the other mode.
The modes are determined by HZ pin and VIN pin
as shown in the table 1. A valid VIN voltage forces
ACT2802/ACT2802B/ACT2802C into charge mode.
Boost mode is enabled if HZ pin is pulled low and
VIN is invalid or not present. For ACT2802QL-T/
ACT2802-T1026, When HZ=0, if PB is pulled low
more than 100ms, boost converter is enabled; For
ACT2802B/ACT2802C, when HZ=0, if PB is pulled
low more than 30ms, boost converter is enabled.
Table 1: Mode Selection
Modes of Operation
ACT2802/ACT2802B/ACT2802C has 3 operation
modes: charge mode, boost mode and highimpedance (HZ) mode. In charge mode, the input
current limit Q1 is enabled and Q2 and Q3 operate
as a buck converter to charge battery. In boost
mode, Q2 and Q3 operate as boost converter to
step battery voltage up to +5V at VOUT, and the
current limit switch Q1 is turned off, and the reverse
current from VOUT to VIN is blocked. In HZ mode,
all the switches are turned off and the drainage
current from battery is very low. ACT2802QL-T/
HZ PIN
0
0
1
1
VIN Valid
0
1
0
1
Mode
Boost
Charge
HZ
Charge
Flashlight
ACT2802B/ACT2802C has an flashlight function.
Once PB is pressed for more than 3 seconds, the
flashlight is switched on. The driver will deliver up to
50mA current to the flashlight. During flashlight on,
if PB is pressed for 3 seconds, flashlight will be
switched off.
Figure 1:
ACT2802QL-T/ACT2802-T1026 System Operation Flow Chart
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
FUNCTIONAL DESCRIPTION
Figure 2:
ACT2802B/ACT2802C System Operation Flow Chart
Input Current Limit
When the input current reaches the programmed
value, switch Q1 goes into linear mode and output
voltage starts to drop. When output voltage drops to
4.25V, hiccup mode is triggered and switch Q1
turns off and restart in 2 seconds.
at a reduced current, 10% of the programmed
maximum fast charge constant current. Once VBAT
reaches the precondition threshold voltage the state
machine jumps to the fast charge state.
Fast Charge
ACT2802/ACT2802B/ACT2802C is configured in
charge mode (buck mode) when VIN is valid. In this
mode, a battery is charged with preconditioning,
fast charge, top-off and end of charge (EOC). The
typical charge management is shown in Figure 3
and Figure 4.
If battery voltage is above preconditioning
threshold, buck converter charges battery with
constant current. In fast charge state, the ACT2802/
ACT2802B/ACT2802C charges at the current set
by the external resistor connected at the ICST pin.
During a normal charge cycle fast charge continues
in CC mode until VBAT reaches the charge
termination voltage, at which point the ACT2802/
ACT2802B/ACT2802C charges in top off state.
CC/CV Regulation Loop
Top Off
There are CC/CV regulation loops built in ACT2802/
ACT2802B/ACT2802C, which regulates either
current or voltage as necessary to ensure fast and
safe charging of the battery. In a normal charge
cycle, this loop regulates the current to the value
set by the external resistor at the ICST pin.
Charging continues at this current until the battery
cell voltage reaches the termination voltage. At this
point the CV loop takes over, and charge current is
allowed to decrease as necessary to maintain
charging at the termination voltage.
With the battery voltage approaches the EOC
voltage set by the BTV pin. Charge current
decreases as charging continues. In the top off
state, the cell is charged in constant voltage (CV)
mode. During a normal charging cycle charging
proceeds until the charge current decreases below
the end of charge (EOC) threshold, defined as 15%
of fast charge current. When this happens, the state
machine terminates the charge cycle and jumps to
the EOC state. Switching Battery Charger
Precondition Charge
A new charging cycle begins with the precondition
state, and operation continues in this state until VBAT
exceeds the precondition threshold voltage. When
operating in precondition state, the cell is charged
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End of Charge
When charge current decreases to 15% of set fast charge current, the buck converter goes into end of
charge mode and keep monitoring the battery
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
FUNCTIONAL DESCRIPTION
Recharge
When battery voltage drops by 200mV below the end of charge voltage, the charger is reinitiated with
constant current charge.
Figure 3.
Typical Li+ Charge Profile and ACT2802/ACT2802B/ACT2802C Charge States
A: PRECONDITION STATE
B: FAST-CHARGE STATE
C: TOP-OFF STATE
D: END-OF-CHARGE STATE
Figure 4.
Charger State Diagram
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ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
the compensated impedance. Those thresholds are
programmed by a resistor connected from BLVS
pin to AGND as shown in Figure 6. The following
equation shows the LED4 voltage threshold:
APPLICATIONS INFORMATION
Battery Charge Termination Voltage
Battery charge termination voltage is set by a
resistor Rbtv connected from BTV pin to AGND as
shown in Figure 5. The battery charge termination
voltage is estimated as the following equation:
VBAT (V ) = 4.1(V ) + Rbtv × 4 × 10 −6 (V )
V BATLED 4 ( V ) = 3 . 5 ( V ) + 0 . 01 ( mA ) × R BLVS ( k Ω )
(2)
(1)
Rbtv is selected based on the battery voltage rating.
1% accuracy resistor is recommended for Rbtv.
Figure 6.
Battery level voltage shift setting circuit
As long as LED4 is set, the other 3 LED thresholds
is fixed as shown in the table 3 and table 4:
Table 3: ACT2802QL-T/ACT2802-T1026
4 LED Voltage Thresholds
Figure 5.
Battery terminal voltage setting circuit
LED Status Indication
4 LEDs ON/OFF and flash show the charge status
and the remained capacity level as shown in the
table 2. The LED status is based on battery voltage
and operation modes. In charge mode, when a
battery is fully charged, flashing stops and all the 4
LEDs are solid on.
RBLVS (ohm)
50K
60K
70K
80K
LED1
3.35V
3.45V
3.55V
3.65V
LED2
3.60V
3.70V
3.80V
3.90V
LED3
3.75V
3.85V
3.95V
4.05V
LED4
4.00V
4.10V
4.20V
4.30V
Table 4: ACT2802B/ACT2802C 4 LED Voltage Thresholds
Battery level voltage shift (BLVS pin)
LED1-4 voltage thresholds are adjusted from HZ
mode during charging and discharging based on
RBLVS (ohm)
50K
60K
70K
80K
LED1
3.55V
3.65V
3.75V
3.85V
LED2
3.65V
3.75V
3.85V
3.95V
LED3
3.80V
3.90V
4.00V
4.10V
LED4
4.00V
4.10V
4.20V
4.30V
Table2: LED Indication
(Boost or HZ Mode)
ACT2802QL-T/ACT2802-T1026:
PB time>100ms
ACT2802C: PB time>30ms
Charge Mode
LED
LED1
LED2
LED3
LED4
LED1
LED2
LED3
LED4
VBAT<2.9V
Flash
Off
Off
Off
Off
Off
Off
Off
2.9V≤VBAT<LED1(ACT2802QL-T)
Flash
Off
Off
Off
Off
Off
Off
Off
2.9V≤VBAT<LED1
(ACT2802-T1026/ACT2802C)
Flash
Off
Off
Off
Flash
Off
Off
Off
LED1≤VBAT<LED2
On
Flash
Off
Off
On
Off
Off
Off
LED2≤VBAT<LED3
On
On
Flash
Off
On
On
Off
Off
LED3≤VBAT<LED4
On
On
On
Flash
On
On
On
Off
VBAT≥LED4
On
On
On
Flash
On
On
On
On
VBAT≥LED4 (End of Charge)
On
On
On
On
On
On
On
On
Innovative PowerTM
- 13 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
Ic( A ) = 1.25( A ) ×
Input Current Limit
RICST ( kΩ )
Rcs( mΩ )
(4)
An external resistor is used to set the input current
limit connected from ILIM pin to AGND as shown in
Figure 7. Input current limit has built-in soft startup
and current foldback control loop. The input current
limit is estimated as the following equation:
I ILIM (A) =
2 . 4 (V)
R ILIM (k Ω )
(3)
Figure 10.
Battery fast charge current setting
3.0
VIN = 5.0V
Vbat=3.7V
2.5
ICHRG (A)
2.0
Figure 7.
1.5
1.0
0.5
Input current limit setting circuit
0
Input current limit at various resistor curve is shown
in Figure 8.
3.5
VIN = 5.0V
3.0
10
20
30
40
50
60
RICST (kΩ)
Figure 11.
Battery fast charge current setting
Boost Output Constant Current
2.5
IILIM (A)
0
Boost output current is set by a resistor connected
from IOST pin to AGND as shown in Figure 12. The
boost output current is estimated as the following
equation:
2.0
1.5
1.0
0.5
0.6
1.0
1.4
1.8
2.2
2.6
IIOST (A) =
3.0
RILIM (kΩ)
Figure 8.
2
R
(kΩ )
( A ) × IOST
3
Rcs (mΩ )
(5)
Input current limit setting
The ILIM pin voltage is proportional to input current
until input current is limited, as shown in Figure 9.
1.4
1.2
VIN = 5.0V
RILIM=750Ω
VILIM (V)
1.0
0.8
Figure 12.
Boost output current setting circuit
0.6
0.4
Figure 13 gives out boost output current with
various RIOST.
0.2
0
0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.0
Input Current (A)
VILIM VS. input current
2.0
IOUT (A)
Figure 9.
Battery Fast Charge Current
Battery fast charge current is set by a resistor
connected from ICST pin to AGND as shown in
Figure 10. Figure 11 gives out different fast charge
current with various RICST. The battery fast charge
current is estimated as the following equation:
Innovative PowerTM
VBAT = 3.7V
CVout=4.5V
2.5
- 14 -
1.5
1.0
0.5
0
0
20
40
60
80
100
RIOST (kΩ)
Figure 13.
Boost output current setting
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
The IOST pin voltage is proportional to output
current until output current is limited, as shown in
Figure 14.
resonance as shown in Figure 16.
750
VBAT = 3.7V
RIOST=91kΩ
VIOST (mV)
600
450
300
Figure 16.
Input over voltage surge protection circuit
150
0
0
0.4
0.8
1.2
1.6
2.0
Boost Output Plug-in Auto Detection
2.4
Figure 17 provides a solution for auto plug-in
detection.
Output Current(A)
Figure 14.
VIOST VS. output current
Battery Impedance Compensation
An external resistor is used to set the impedance
from 40mΩ to 500mΩ as shown in Figure 15. RIMC
is corresponding to battery impedance. Higher RIMC
gives higher compensation voltage which is
positively proportional to battery charge/discharge
current.
Select RIMC based on battery impedance:
RIMC(kΩ ) =
25 × R (mΩ )
Rcs (m Ω )
(6)
VBAT (V ) = BAT(V ) − IBAT ( A ) × R( mΩ ) ×10-3
(7)
Figure 17.
Boost output auto detection circuit
External Input Over Voltage Protection
Considering the maximum voltage rating at VIN pin,
the external OVP circuit as shown in Figure 18 is
recommended if input voltage may go higher than
7V. With the enhanced OVP circuit, the design can
pass UN38.3.
Figure 15.
Battery impedance compensation setting circuit
The battery impedance as shown in the table 5
according to the RIMC and Rcs:
Table 5: Battery Impedance
RIMC(KΩ)
Battery
Impedance
R(mΩ)
Figure 18.
Input over voltage protection
50
100
200
Rcs=25mΩ
50
100
200
LEDs on in Boost Mode
Rcs=50mΩ
100
200
400
LEDs can be always on during boost mode, the
schematic is shown in Figure19.
Input Over Voltage Surge
In the case of pure ceramic input capacitor is
chosen, if the input cable is long, stray inductance
may cause over voltage spikes as twice as the
steady-state voltage when input source is plugged
in. Below input circuit is recommended to avoid
input voltage surge. R1 resistor is added in series
with capacitor C1 to damp the potential LC
Innovative PowerTM
- 15 -
Figure 19.
LEDs on in boost mode circuit
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
Inductor and Capacitor Selection
ACT2802/ACT2802B/ACT2802C supports SMD
components. 2.2uH inductor is recommended.
Input side, 4.7uF ceramic capacitor in series with
2.7Ω resistor are recommended, on battery side,
22uF ceramic capacitor is recommended while on
output side, 3*22uF ceramic capacitors are
recommended.
Battery Temperature Monitoring
ACT2802QL-T/ACT2802-T1026 continuously
monitors the temperature of the battery pack by
sensing the resistance of its thermistor, and
suspends charging if the temperature of the battery
pack exceeds the safety limits.
In a typical application, the TH pin is connected to
the battery pack's thermistor input as shown in
Figure 20. The ACT2802QL-T/ACT2802-T1026
injects a 60µA current out of the TH pin into the
thermistor, so that the thermistor resistance is
monitored by comparing the voltage at TH to the
internal VTHL and VTHH thresholds of 0.3V and 1.5V,
respectively. When VTH > VTHH or VTH < VTHL charging
and the charge timers are suspended. When VTH
returns to the normal range, charging and the charge
timers resume.
The threshold is given by:
60µA×RNOM×kHOT=0.3V→ RNOM×kHOT=5kΩ
60µA×RNOM×kCOLD=1.5V → RNOM×kCOLD= 25kΩ
where RNOM is the nominal thermistor resistance at
room temperature, and kHOT and kCOLD are the ratios
of the thermistor's resistance at the desired hot and
cold thresholds, respectively.
Figure 20.
Innovative PowerTM
Battery thermal circuit
- 16 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
PC Board Layout Guidance
When laying out the printed circuit board, the
following checklist should be used to ensure proper
operation of the IC.
1. Arrange the power components to reduce the
AC loop size, VIN pin, Vout pin, SW pin and the
schottky diode.
2. Place input decoupling ceramic capacitor C3
and R10 as close to VIN pin as possible.
Resistor R10 is added in series with capacitor
C3 to damp the potential LC resonance .
3. Use copper plane for power GND for best heat
dissipation and noise immunity.
4. Place CSP and CSN capacitor C6 (10nF) close
to CSP and CSN pin as possible, use Kevin
Sense from sense resistor R2 and R2A to CSP
and CSN pins. 22uF decoupling capacitor is
added close to BAT pin.
5. Place the ceramic capacitor C2 and D1 as
close to VOUT and PGND as possible, SW
goes under the C2 (recommend C2 to use 1206
size). SW pad is a noisy node switching. It
should be isolated away from the rest of circuit
for good EMI and low noise operation.
6. Thermal pad is connected to GND layer through
vias (recommend 4X4 pins and the aperture is
10mil). Ground plane, PGND and AGND is
single point connected under the ACT2802/
ACT2802B/ACT2802C thermal pad through
vias to limited SW area.
7. From BAT pin to the Battery positive terminal,
need to lay the divided line to ensure the
battery voltage accuracy of sampling.
8. RC snubber is recommended to add across SW
to PGND to reduce SW spike below 7V.
3A /20V schottky is added to across VOUT and
SW pins.
A demo board PCB layout example is shown in the
figure 21.
Figure 21.
PCB Layout
Bottom Layer
Top Layer
Innovative PowerTM
- 17 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
Figure 22. ACT2802QL-T/ACT2802-T1026 typical application circuit
(Input current limit 3.0A, fast charge current limit 2.1A, boost output constant current limit 2.4A)
Innovative PowerTM
- 18 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
Table 5: BOM List
ITEM
REFERENCE
DESCRIPTION
QTY
MANUFACTURER
1
L1
Core 6.5*3*3 Dip 2.2uH 6A
1
Sunlord
2
Q1
AO4503, Rdson=19mΩ at VGS = - 4.5 V
1
Vishay
3
Q3
MMBT3906
1
Vishay
4
D1
SBR3U20SA, 20V/3A Schottky
1
Diodes
5
D2
1N4148, Vf=0.7V, 75V Schottky
1
Vishay
6
C2,C5,C13,C14
Ceramic capacitor, 22uF/10V, X7R, 1206
4
Murata/TDK
7
C3
Ceramic capacitor, 4.7uF/10V, X7R, 1206
1
Murata/TDK
8
C4
Ceramic capacitor, 0.1uF/10V, X7R, 0603
1
Murata/TDK
9
C6
Ceramic capacitor, 10nF/10V, X7R, 0603
1
Murata/TDK
10
C7
Ceramic capacitor, 4.7nF/10V, X7R, 0603
1
Murata/TDK
11
C8,C11,C12
Ceramic capacitor, 2.2uF/10V, X7R, 0603
3
Murata/TDK
12
C9,C10
Ceramic capacitor, 39pF/10V, X7R, 0603, Optional
2
Murata/TDK
13
C16
Ceramic capacitor, 4.7uF/10V, X7R, 0603
1
Murata/TDK
14
R1
Chip Resistor, 750Ω, 1/10W, 1%, 0603
1
Murata/TDK
15
R2,R2A
Chip Resistor, 50mΩ, 1/4W, 1%, 1206
2
Murata/TDK
16
R3
Chip Resistor, 93.1kΩ, 1/10W, 1%, 0603
1
Murata/TDK
17
R4,R15
Chip Resistor, 43.2kΩ, 1/10W, 1%, 0603
2
Murata/TDK
18
R5
Chip Resistor, 25kΩ, 1/10W, 1%, 0603
1
Murata/TDK
19
R6
Chip Resistor, 10kΩ, 1/10W, 5%, 0603
1
Murata/TDK
20
R7
Chip Resistor, 60kΩ, 1/10W, 1%, 0603
1
Murata/TDK
21
R8
Chip Resistor, 80kΩ, 1/10W, 1%, 0603
1
Murata/TDK
22
R9
Chip Resistor, 0.47Ω, 1/8W, 5%, 0805
1
Murata/TDK
23
R10
Chip Resistor, 2.7Ω, 1/4W, 5%, 1206
1
Murata/TDK
24
R11
Chip Resistor, 200kΩ, 1/10W, 5%, 0603
1
Murata/TDK
25
R12,R13
Chip Resistor, 715kΩ, 1/10W, 5%, 0603
2
Murata/TDK
26
R14,R16
Chip Resistor, 49.9kΩ, 1/10W, 5%, 0603
2
Murata/TDK
27
R17
Chip Resistor, 75kΩ, 1/10W, 1%, 0603
1
Murata/TDK
28
R18,R20
Chip Resistor, 100kΩ, 1/10W, 5%, 0603
2
Murata/TDK
29
R21
Chip Resistor, 2.2Ω, 1/10W, 5%, 0603
1
Murata/TDK
30
R23
Chip Resistor, 100Ω, 1/10W, 5%, 0603
1
Murata/TDK
31
R24,R25
Chip Resistor, 22Ω, 1/10W, 5%, 0603, Optional
2
Murata/TDK
32
LED1,LED2,
LED3,LED4
LED, 0603, Blue
4
LED Manu
33
PB
Push Button Switch
1
Nikkai Omron
34
USB
10.2*14.6*7mm, 4P
1
35
Micro-USB
MICRO USB 5P/F SMTB
1
36
U1
IC, ACT2802QL-T/ACT2802-T1026, T-QFN 44-24
1
Innovative PowerTM
- 19 -
ACT
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
LED
LED2
LED3
LED4
RIMC
BLVS
FLD
LED1
LED2
R5
BTV
AGND
ICST
nPG
IOST
ILIM
CSN
VIN
CSP
R4
R3
D2
C3
C8
R18
BAT
PGND
SW
SW
R10
VOUT
VOUT
+
D-
LED1
PB
R1
C12
Input USB
D+
-
LED3
C11
HZ
LED4
R11
PB
R8
R23
R13
R7
R22
R12
C6
C9
C2
C10
R24
R25
D1
Q1
R2
+
L1
D-
Q3
D+
-
R9
R20
C7
Output USB
R15
R14
R17
C4
C13
C14
C16
R21
R2A
C5
BAT
R16
Figure 23. ACT2802B/ACT2802C typical application circuit
(Input current limit 3.0A, fast charge current limit 2.1A, boost output constant current limit 2.4A)
Innovative PowerTM
- 20 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
Table 6: BOM List
ITEM
REFERENCE
DESCRIPTION
QTY
MANUFACTURER
1
L1
Core 6.5*3*3 Dip 2.2uH 6A
1
Sunlord
2
Q1
AO4503, Rdson=19mΩ at VGS = - 4.5 V
1
Vishay
3
Q3
MMBT3906
1
Vishay
4
D1
SBR3U20SA, 20V/3A Schottky
1
Diodes
5
D2
1N4148, Vf=0.7V, 75V Schottky
1
Vishay
6
C2,C5,C13,C14
Ceramic capacitor, 22uF/10V, X7R, 1206
4
Murata/TDK
7
C3
Ceramic capacitor, 4.7uF/10V, X7R, 1206
1
Murata/TDK
8
C4
Ceramic capacitor, 0.1uF/10V, X7R, 0603
1
Murata/TDK
9
C6
Ceramic capacitor, 10nF/10V, X7R, 0603
1
Murata/TDK
10
C7
Ceramic capacitor, 4.7nF/10V, X7R, 0603
1
Murata/TDK
11
C8,C11,C12
Ceramic capacitor, 2.2uF/10V, X7R, 0603
3
Murata/TDK
12
C9,C10
Ceramic capacitor, 39pF/10V, X7R, 0603, Optional
2
Murata/TDK
13
C16
Ceramic capacitor, 4.7uF/10V, X7R, 0603
1
Murata/TDK
14
R1
Chip Resistor, 750Ω, 1/10W, 1%, 0603
1
Murata/TDK
15
R2,R2A
Chip Resistor, 50mΩ, 1/4W, 1%, 1206
2
Murata/TDK
16
R3
Chip Resistor, 93.1kΩ, 1/10W, 1%, 0603
1
Murata/TDK
17
R4,R15
Chip Resistor, 43.2kΩ, 1/10W, 1%, 0603
2
Murata/TDK
18
R5
Chip Resistor, 25kΩ, 1/10W, 1%, 0603
1
Murata/TDK
19
R7
Chip Resistor, 60kΩ, 1/10W, 1%, 0603
1
Murata/TDK
20
R8
Chip Resistor, 80kΩ, 1/10W, 1%, 0603
1
Murata/TDK
21
R9
Chip Resistor, 0.47Ω, 1/8W, 5%, 0805
1
Murata/TDK
22
R10
Chip Resistor, 2.7Ω, 1/4W, 5%, 1206
1
Murata/TDK
23
R11
Chip Resistor, 200kΩ, 1/10W, 5%, 0603
1
Murata/TDK
24
R12,R13
Chip Resistor, 715kΩ, 1/10W, 5%, 0603
2
Murata/TDK
25
R14,R16
Chip Resistor, 49.9kΩ, 1/10W, 5%, 0603
2
Murata/TDK
26
R17
Chip Resistor, 75kΩ, 1/10W, 1%, 0603
1
Murata/TDK
27
R18,R20
Chip Resistor, 100kΩ, 1/10W, 5%, 0603
2
Murata/TDK
28
R21
Chip Resistor, 2.2Ω, 1/10W, 5%, 0603
1
Murata/TDK
29
R22
Chip Resistor, 51Ω, 1/10W, 5%, 0603
1
Murata/TDK
30
R23
Chip Resistor, 100Ω, 1/10W, 5%, 0603
1
Murata/TDK
31
R24,R25
Chip Resistor, 22Ω, 1/10W, 5%, 0603, Optional
2
Murata/TDK
32
LED1,LED2, LED3,LED4
LED, 0603, Blue
4
LED Manu
33
LED
Flashlight
1
LED Manu
34
PB
Push Button Switch
1
Nikkai Omron
35
USB
10.2*14.6*7mm, 4P
1
36
Micro-USB
MICRO USB 5P/F SMTB
1
37
U1
IC, ACT2802B/ACT2802C, T-QFN 44-24
1
Innovative PowerTM
- 21 -
ACT
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(Schematic as show in Figure 22, Ta = 25°C, unless otherwise specified)
Battery Charge V/I Profile
Charge Current VS. Output Current
Input Current (mA)
2500
Charge Current (mA)
VIN = 5.0V
VBAT = 3.5V
2000
Input Current
1500
Charge Current
1000
500
ACT2802-002
2500
ACT2802-001
3000
VIN = 5.0V
ICHRG = 2.1A
2000
1500
1000
500
0
0
0
500
1000
1500
2000
2500
0
0.5
1.0
1.5
2.0
Output Current (mA)
4.0
4.5
2100
2400
VIN = 5.0V
ICHRG = 2.1A
ACT2802-004
100.0
ACT2802-003
90.0
VBAT = 3.2V
Efficiency(%)
Efficiency(%)
3.5
Boost Efficiency
91.5
91.0
90.5
90.0
VBAT = 3.7V
80.0
VBAT = 4.1V
70.0
60.0
50.0
89.5
89.0
40.0
3.0
3.2
3.4
3.6
3.8
4.0
0
4.2
300
600
900
1200
1500
1800
Vbat (V)
Output Current (mA)
Battery Charge Current VS. Temperature
Battery Leakage VS. Temperature
(HZ Mode)
2500
Battery Leakage (µA)
VIN = 5.0V
VBAT = 3.5V
2000
1500
1000
500
0
-20
ACT2802-006
25.0
ACT2802-005
3000
Battery Charge Current (mA)
3.0
Vbat (V)
Charge Efficiency
92.0
2.5
20.0
15.0
VBAT = 3.5V
VBAT = 4.1V
10.0
5.0
0
0
20
40
60
80
100
120
140
-20
Temperature (°C)
Innovative PowerTM
0
20
40
60
80
100
120
Temperature (°C)
- 22 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(Schematic as show in Figure 22, Ta = 25°C, unless otherwise specified)
Boost Output Voltage VS. Temperature
Boost Output Voltage (V)
VBAT = 3.5V
CV= 4.5V
Rcs=25mΩ(1%)
2800
5.4
2600
2400
2200
2000
1800
VBAT = 3.5V
VOUT = 5.05V
5.3
5.2
5.1
5.0
4.9
4.8
-20
0
20
40
60
80
100
120
140
-30
0
Temperature (°C)
Boost Output Voltage VS. Output Current
Boost Output Constant Current mA)
Boost Output Voltage (V)
5.02
VBAT = 3.2V
4.98
4.94
4.9
500
1000
1500
2000
90
120
150
2500
2550
ACT2802-010
VBAT=4.1V
0
60
Boost Output Constant Current Limit VS. VBAT
ACT2802-009
5.06
30
Temperature (°C)
5.1
2500
2450
2400
2350
2300
2250
3000
3.0
3.2
3.4
3.6
3.8
4.0
Boost Output Current (mA)
Vbat (V)
Boost Standby Current VS. Battery Voltage
Battery Leakage VS. Battery Voltage
(HZ Mode)
7.0
Battery Leakage (µA)
0.55
0.53
0.51
0.49
0.47
4.2
ACT2802-012
8.0
ACT2802-011
057
Standby Current (mA)
ACT2802-008
3000
ACT2802-007
Boost Output Constant Current (mA)
Boost Output Constant Current Limit
VS. Temperature
6.0
5.0
4.0
3.0
2.0
1.0
0
0.45
3.0
3.3
3.6
3.9
4.2
45
0
4.8
2.0
3.0
4.0
5.0
Battery Voltage(V)
Battery Voltage(V)
Innovative PowerTM
1.0
- 23 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(Schematic as show in Figure 22, Ta = 25°C, unless otherwise specified)
Boost Load Transient (80mA-1A-80mA)
Boost Load Transient (1A-2.1A-1A)
ACT2802-014
ACT2802-013
VBAT = 3.4V
VOUT = 5.0V
IIOST = 2.4A
VBAT
= 4.2V
3.4V
V
BAT =
VOUT
= 5.0V
5.0V
V
OUT =
= 1.3A
2.4A
IIIOST
IOST =
CH1
CH1
CH2
CH2
CH1: VOUT, 200mV/div
CH2: IOUT, 1A/div
TIME: 400µs/div
CH1: VOUT, 100mV/div
CH2: IOUT, 1A/div
TIME: 400µs/div
SW and Output Waveforms in Boost Mode
SW and Output Waveforms in Boost Mode
VBAT = 4.1V
VOUT = 5.0V
IOUT = 2.4A
ACT2802-016
ACT2802-015
3.4V
BAT ==3.4V
VVBAT
5.0V
OUT ==5.0V
VVOUT
I
=
1.0A
OUT
IOUT = 2.4A
CH1
CH1
CH2
CH2
CH1: VOUT, 20mV/div
CH2: VSW, 2V/div
TIME: 1µs/div
CH1: VOUT, 20mV/div
CH2: VSW, 2V/div
TIME: 1µs/div
Transition Between Buck Mode
and Boost Mode
VIN = 5.0V
VBAT = 4.1V
VIN = 5.0V
VBAT = 4.1V
VIN
ACT2802-017
CH1
VnPG
CH2
CH3
VOUT
CH1: VIN, 5V/div
CH2: VnPG, 5V/div
CH3: VOUT, 2V/div
TIME: 1s/div
Innovative PowerTM
- 24 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACT2802/ACT2802B/ACT2802C
Rev 3, 07-Aug-14
QFN44-24 PACKAGE OUTLINE AND DIMENSIONS
SYMBOL
DIMENSION IN
MILLIMETERS
DIMENSION IN
INCHES
MIN
MAX
MIN
MAX
A
0.800
1.000
0.032
0.040
A1
0.000
0.050
0.000
0.002
A3
b
0.200 REF
0.180
0.300
0.008 REF
0.007
0.012
D
4.000 BSC
0.160 BSC
E
4.000 BSC
0.160 BSC
D2
2.500
2.800
0.098
0.110
E2
2.500
2.800
0.098
0.110
e
L
R
K
0.500 BSC
0.350
0.450
0.200 TYP
0.200
---
0.020 BSC
0.014
0.018
0.008 TYP
0.008
---
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
sales@active-semi.com or visit http://www.active-semi.com.
is a registered trademark of Active-Semi.
Innovative PowerTM
- 25 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.