MPS MP5032 Qc 3.0 controller with integrated current-limit switch Datasheet

MP5032
QC 3.0 Controller with
Integrated Current-Limit Switch
DESCRIPTION
FEATURES
The MP5032 integrates a USB current-limit
switch and charging port identification circuit.
The MP5032 achieves 3A of continuous output
current over a wide input supply range.


The output of the USB switch is current-limit
programmable. The MP5032 supports DCP
schemes for battery charging specification
(BC1.2), divider mode, 1.2V/1.2V mode, and
quick charge specification (QC 3.0) without the
need for external user interaction.
The MP5032
compensation.
provides
linear
line





drop


Full protection features include hiccup current
limiting, input over-voltage protection (OVP),
and thermal shutdown.
Wide 3.6V to 14V Operating Input Voltage
Range
Supports QC 3.0 (3.6V - 12VOUT) and DCP
Schemes for BC1.2, Divider Mode, and
1.2V/1.2V Mode
Line Drop Compensation for 5V Output
Fairly Constant Power Limit
32mΩ Low RDS(ON) Power MOSFET
Input Discharge during High Voltage to Low
Voltage Change
Intelligent Input Over-Voltage Shutdown
Protection
Compatible with Buck and Boost Converters
Available in a TSOT23-8 Package
APPLICATIONS



The MP5032 requires a minimal number of
readily
available,
standard,
external
components to complete the USB switch and
charging mode auto-detection solution. The
MP5032 is available in an 8-pin TSOT23
package.
USB Power Supplies
Automotive Cigarette Lighter Adapters
Power Banks
All MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
Assurance. “MPS” and “The Future of Analog IC Technology” are
registered trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
OUT
3.6V-12V
VIN
12V-36V
C3
22μF
BST
IN
MP2499M
SW
C5
0.1μF
L1
15μH
FB
VCC
AGND
R4
33kΩ
OUT
IN
C2
22μF
R1
82.5kΩ
EN/SYNC
C4
0.1μF
C1
66μF
QC3.0
MP5032
DM
ADJ
R2
24.3kΩ
DP
ISENSE
Type-A
EN
PGND
R3
1.5kΩ
ILIM
GND
Note: Set MP2499M original output to 3.5V by R1 and R2.
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
1
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
ORDERING INFORMATION
Part Number*
MP5032GJ
Package
TSOT23-8
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g.MP5032GJ-Z)
TOP MARKING
AYB: Product code of MP5032GJ
Y: Year code
PACKAGE REFERENCE
TOP VIEW
EN
DP
OUT
DM
IN
ILIM
GND
ADJ
TSOT23-8
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
2
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
θJA
θJC
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance
Supply voltage (VIN) ..................... -0.3V to +16V
Output voltage (VOUT) ................... -0.3V to +16V
All other pins .................................. -0.3V to +6V
Junction temperature ............................... 150°C
Lead temperature .................................... 260°C
Continuous power dissipation (TA = +25°C) (2) (5)
................................................................ 1.89W
TSOT23-8
EV5032-J-00A (5) .................. 66 ....... 23 ... °C/W
JESD51-7 (6) ........................ 100 ...... 55 ... °C/W
Recommended Operating Conditions (3)
Supply voltage (VIN) .................... 3.6V to 14V (4)
Output voltage (VOUT) .................. Follow with VIN
Output current (IOUT)............................. Up to 3A
Operating junction temp. (TJ). .. -40°C to +125°C
MP5032 Rev 1.0
8/4/2017
NOTES:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation produces an excessive die temperature, causing
the regulator to go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) For lower VIN applications, refer to the Operation section on
page 12.
5) Measured on EV5032-J-00A, 2-layer PCB, 58mmx32mm,
2oz copper
6) Measured on JESD51-7, 4-layer PCB.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
3
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
ELECTRICAL CHARACTERISTICS
VIN = 5V, RILIM = 1.5kΩ, TJ = -40°C to 125°C
otherwise noted.
Parameter
VIN under-voltage lockout
rising threshold
UVLO hysteresis
Second VIN under-voltage
lockout rising threshold
Second UVLO hysteresis
EN rising threshold
EN hysteresis
EN auto pull-up current
Shutdown current
Supply current
USB Power MOSFET
(7)
, typical value is tested at TJ = +25°C, unless
Symbol
Condition
Min
Typ
Max
Units
VIN_UVLO1
ADJ starts to work
2.7
3.0
3.3
V
VUVLOHYS1
VIN_UVLO2
880
Power MOSFET turn-on
VUVLOHYS2
VEN_R
VEN_HYS
IEN_UP
IQ_STD
IQ
mV
3.7
3.9
4.1
V
1.17
500
1.21
1.25
mV
V
7
EN = 0, VIN = 5V
VIN = 5V, no load
200
11.5
280
250
320
16
VIN = 5V, IOUT = 0.5A, TJ = 25°C
32
40
RDSON
VIN = 5V, IOUT = 0.5A, TJ = -40°C
to 125°C
32
55
Input discharge resistance
RDIS
72
105
Soft-start time
TSS
VIN_OVP = 6V
VIN = 5V, no load, VOUT from 10%
to 90%
On resistance
mV
μA
μA
μA
mΩ
Ω
μs
330
Current Limit Set
USB current limit
ILIMIT
VIN = 5V, VOUT starts to drop
VIN = 9V (QC 2.0, 9V mode or QC
3.0, 3.6V ≤ VOUT < 6.6V),
VOUT starts to drop
VIN = 12V (QC 2.0, 12V mode or
QC 3.0, 6.6V ≤ VOUT < 9.8V),
VOUT starts to drop
3.05
3.2
3.4
2.51
2.70
2.89
1.87
2.08
2.29
IOUT = 0A, TJ = 25°C
IOUT = 0A, TJ = -40°C to 125°C
5.05
5
8.82
11.76
500
5.10
5.10
9
12
5.15
5.2
9.18
12.24
V
V
V
V
μA
330
440
mV
%
A
Output Voltage Control
Default VIN
9VIN voltage
12VIN voltage
VADJ sink current capability
VIN_Def1
VIN_Def2
VIN_9
VIN_12
VADJ = 0.8V
Line drop compensation
Protection
VIN_5_C
IOUT = 2.4A, only 5VIN active
VIN OVP threshold
VOV_TH
VIN rising edge, VIN = 5V
VIN rising edge, VIN = 9V
110
110
115
115
120
120
VIN rising edge, VIN = 12V
110
115
120
VOV_Recovery Reset mode to 5V default
5.35
5.5
5.65
VIN OVP Recovery
Threshold
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
V
4
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
ELECTRICAL CHARACTERISTICS (continued)
VIN = 5V, RILIM = 1.5kΩ, TJ = -40°C to 125°C
otherwise noted.
Parameter
Symbol
Condition
OCP on time of hiccup
OCP off time of hiccup
THIC_ON
THIC_OFF
VOUT<3.5V
Shutdown Temperature(8)
Hysteresis(8)
(7)
, typical value is tested at TJ = +25°C, unless
Min
TSTD
THYS
Typ
Max
Units
2
2
ms
s
160
35
°C
°C
BC1.2 DCP Mode
DP/DM short resistance
1.2V/1.2V Mode
RDP/DM_Short VDP = 0.8V, IDM = 1mA
DP/DM output voltage
DP/DM output impedance
Divider Mode
VDP/DM_1.2V
RDP/DM_1.2V
DP/DM output voltage
DP/DM output impedance
Quick Charge 3.0 Mode
VDP/DM
RDP/DM
DP/DM low voltage
DP/DM high voltage
DP output impedance
DM output impedance
DM low glitch time (8)
DP high glitch time
VQC_LOW
VQC_High
RDP_QC
RDM_QC
TGlitch_DM
TGlitch_DP
Output voltage change glitch
time
TGlitch_V_
Bus voltage step
Time for VBUS to discharge to
5V when DP < 0.6V (8)
VIN = VOUT = 5V
Change
VBUS_CONT_
STEP
50
Ω
1.1
200
1.2
300
1.3
400
V
kΩ
2.5
18
2.7
22
2.85
28
V
kΩ
0.25
1.8
250
15
0.3
2
350
20
10
0.4
2.2
450
25
1500
V
V
kΩ
kΩ
ms
ms
1000
20
40
60
ms
150
200
250
mV
500
ms
TV_UNPLUG
NOTES:
7) Guaranteed by over-temperature correlation, not tested in production.
8) Guaranteed by engineering sample characterization.
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
5
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
TYPICAL CHARACTERISTICS
VIN = 5V, VOUT = 5V, RILIM = 1.5kΩ, TA = 25°C, unless otherwise noted.
Quiescent Current vs. Input Voltage
EN Float
44
42
40
38
36
34
32
30
28
26
24
400
QUIESCENT CURRENT (µA)
RDSON (mΩ)
RDS(ON) vs. Input Voltage
350
300
250
200
150
100
3
4
5
6
7
8
9
INPUT VOLTAGE (V)
10
11
12
3
Line Drop Compensation
300
CURRENT LIMIT (A)
LINE DROP COMPENSATION
(mV)
350
250
200
150
100
50
0
MP5032 Rev r1.0
8/4/2017
1
1.5
2
OUTPUT CURRENT (A)
6
7
8
9
INPUT VOLTAGE (V)
10
11
12
VIN = 5V Only
400
0.5
5
Current Limit vs. RLIMIT
VIN = 5V Only
0
4
2.5
3
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
RLIMIT (kΩ)
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
6
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
TYPICAL CHARACTERISTICS (continued)
VIN = 5V, VOUT = 5V, RILIM = 1.5kΩ, TA = 25°C, unless otherwise noted.
Start-Up through Enable
Shutdown through Enable
IOUT = 0A
IOUT = 0A
CH1: VOUT
2V/div.
CH1: VOUT
2V/div.
CH2:
VIN/MP5030
2V/div.
CH2:
VIN/MP5030
2V/div.
CH3: VEN
5V/div.
CH3: VEN
5V/div.
CH4: IOUT
2A/div.
CH4: IOUT
2A/div.
500µs/div.
20ms/div.
Mode Transition from 5V to 9V
Mode Transition from 5V to 9V
IOUT = 0A, from QC 2.0_5V to 9V
Zoom in 5V to 9V Slew Rate
CH1: VOUT
5V/div.
CH1: VOUT
5V/div.
CH2: D+
2V/div.
CH2: D+
2V/div.
CH3: D2V/div.
CH4: IOUT
500mA/div.
CH3: D2V/div.
CH4: IOUT
500mA/div.
10ms/div.
500µs/div.
Mode Transition from 9V to 12V
Mode Transition from 9V to 12V
IOUT = 0A, from QC 2.0_9V to 12V
Zoom in 9V to 12V Slew Rate
CH1: VOUT
5V/div.
CH2: D+
2V/div.
CH1: VOUT
5V/div.
CH2: D+
2V/div.
CH3: D2V/div.
CH4: IOUT
500mA/div.
CH3: D2V/div.
CH4: IOUT
500mA/div.
10ms/div.
MP5032 Rev r1.0
8/4/2017
500µs/div.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
7
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
TYPICAL CHARACTERISTICS (continued)
VIN = 5V, VOUT = 5V, RILIM = 1.5kΩ, TA = 25°C, unless otherwise noted.
Mode Transition from 12V to 9V
Mode Transition from 9V to 5V
IOUT = 0A, from QC 2.0_12V to 9V
IOUT = 0A, from QC 2.0_9V to 5V
CH1: VOUT
5V/div.
CH1: VOUT
5V/div.
CH2: D+
2V/div.
CH2: D+
2V/div.
CH3: D2V/div.
CH4: IOUT
500mA/div.
CH3: D2V/div.
CH4: IOUT
500mA/div.
10ms/div.
10ms/div.
Input Over-Voltage Protection
Input Over-Voltage Protection
QC 5V Mode, IOUT = 0A
QC 9V Mode, IOUT = 0A
CH1: VOUT
2V/div.
CH2:
VIN/MP5030
2V/div.
CH1: VOUT
5V/div.
CH2:
VIN/MP5030
5V/div.
CH4: IOUT
2A/div.
CH4: IOUT
2A/div.
1s/div.
2s/div.
Short-Circuit Protection Entry
and Recovery
Short-Circuit Protection Entry
and Recovery
VIN = 5V, IOUT = 0A
VIN = 9V, IOUT = 0A
CH1: VOUT
2V/div.
CH2:
VIN/MP5030
2V/div.
CH1: VOUT
5V/div.
CH2:
VIN/MP5030
5V/div.
CH4: IOUT
2A/div.
CH4: IOUT
2A/div.
2s/div.
MP5032 Rev r1.0
8/4/2017
2s/div.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
8
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
TYPICAL CHARACTERISTICS (continued)
VIN = 5V, VOUT = 5V, RILIM = 1.5kΩ, TA = 25°C, unless otherwise noted.
QC 3.0 Device Charging Test
CH1: VOUT
5V/div.
CH2: D+
2V/div.
CH3: D2V/div.
CH4: ICHARGE
1A/div.
2s/div.
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
9
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
PIN FUNCTIONS
Package
Pin #
Name
1
EN
2
3
OUT
IN
4
GND
5
ADJ
6
ILIM
7
DM
8
DP
MP5032 Rev r1.0
8/4/2017
Description
Enable control. EN has an internal auto pull-up current to 5V. Float EN or apply a logic
high voltage to enable the IC. Pull EN to logic low to disable the IC.
Output of USB current limit switch.
Supply voltage.
Ground.
Output voltage adjustment. ADJ sinks a current from the upstream DC/DC converter's
FB pin to ground to regulate the DC/DC converter's output voltage. ADJ also supports
line drop compensation.
Set the current limit level. Place a resistor between ILIM and GND to achieve a highaccuracy current limit. The current limit threshold varies versus the output voltage to
maintain a fairly constant output power limit.
D- data line to USB connector. DM is the input/output used for handshaking with
portable devices.
D+ data line to USB connector. DP is the input/output used for handshaking with
portable devices.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
10
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
BLOCK DIAGRAM
IN
OUT
Current
Sense
Driver
IN
Charge Pump
Vin
Sense
Line Drop
Compensation
(5V only)
R1
Vcc Regulator
Current Limit
Protection
5V
VFB
EN Control
R2
ILIM
Vo Reference and
Slew Rate
Σ
DP
Auto-Charging Mode
Detection
VREF
IN
IN
ADJ
EN
Over-Voltage
Protection
DM
Compensation
Discharge
GND
Figure 1: Functional Block Diagram
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
11
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
OPERATION
The MP5032 integrates a USB current-limit
switch and charging port identification circuit.
The MP5032 achieves 3A of continuous output
current over a wide input supply range.
The output of the USB switch is current-limited
with an adjustable current-limit threshold. The
MP5032 supports the latest quick-charge
specification (QC 3.0) and is backwardscompatible with QC 2.0. The MP5032 also
supports DCP schemes for battery charging
specification (BC1.2), divider mode, and
1.2V/1.2V mode without the need for external
user interaction.
The MP5032 provides line drop compensation
for a 5V output. Fault condition protection
includes hiccup current limiting, input overvoltage protection (OVP), and thermal
shutdown.
Operation Supply Voltage
The MP5032 has a two-stage input voltage
threshold. The first threshold is around 3V, and
the second threshold is the under-voltage
lockout (UVLO) of the power MOSFET. When
VIN is higher than the first threshold, the
MP5032's ADJ block starts working and sinks a
current to adjust the upstream regulator's output
to an accurate 5.1V. Afterward, the MP5032
can enable the power MOSFET to fully enter
the working state.
Under-Voltage Lockout (UVLO)
UVLO protects the chip from operating at an
insufficient supply voltage. The MP5032's
second UVLO comparator monitors the input
voltage. Once the input voltage is higher than
3.9V, the power MOSFET starts to turn on with
a controlled slew rate.
Internal Soft Start (SS)
An internal soft start prevents the output voltage
from inrush current and overshooting during
start-up.
QC Mode Voltage Transition - Class A
If the downstream device of the MP5032
supports the QC specification, the MP5032 can
require a output voltage higher than 5V by DM
and DP communication. If a higher USB bus
voltage is required, ADJ must be used. ADJ is
usually connected to the feedback pin of the
MP5032 Rev r1.0
8/4/2017
upstream voltage converter. After the
handshake, the MP5032 sinks a controlled
current by ADJ gradually to adjust the VOUT to
9V/12V or another voltage 200mV step-by-step.
Because of smart controller mode, only one
ADJ pin can be set to a different high voltage
that meets QC specification. The output voltage
transition is smooth and has no undershoot or
overshoot (see Figure 2 and Table 1).
Tglitch_V_Change
DP=0.6V
DM=GND
Tglitch_V_Change
DP=0.6V
DM=0.6V
DP=3.3V
DM=0.6V
12V
9V
5V
TV_New_Request
Figure 2: QC Mode Transition
Table 1: QC Mode Definition
Portable Device
DP
DM
0.6V
0.6V
3.3V
0.6V
0.6V
3.3V
3.3V
0.6V
3.3V
GND
USB Bus Voltage
12V
9V
3.6V - 12V/200mV step
according to QC 3.0
No action
5V
When the downstream device is removed, the
output voltage returns to the default 5V
automatically. The input-to-ground discharge
resistor helps expedite this procedure.
Line Drop Compensation
The MP5032 is capable of compensating for an
output voltage drop, such as high impedance
caused by a long trace, to maintain a fairly
constant 5V load-side voltage. The line drop
compensation is only active at 5V VIN while it is
disabled under QC 3.0 mode. Line drop
compensation is achieved through ADJ. The
MP5032 increases the input voltage by 330mV
at a 2.4A output current. Refer to the Line Drop
Compensation
graph
in
the
Typical
Performance Characteristics section on page 6.
The ADJ voltage (VADJ) slowly sinks a controlled
current. The line drop compensation amplitude
increases linearly as the load current increases.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
12
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
In no-load condition, if the input voltage is lower
than the typical 5.1V, ADJ sinks a current to
regulate the upstream regulator's output voltage
to 5.1V. If the input voltage is higher than 5.1V,
the MP5032 no longer regulates the input
voltage.
Figure 3 shows the typical ADJ usage. The ADJ
sink current capability is 500µA. The feedback
current through R1 must be less than 500µA.
Calculate R1 with Equation (1):
V (V)  VFB (V)
R1k  OUT
0.5
(1)
Where VOUT is the maximum output voltage to
be adjusted to.
IN
OUT
Converter
C1
MP5032
R1
ADJ
FB
V
VIN
VFB=108%*Vref
20ms
Discharge
Enable
t
Figure 4: Input Discharge during High Voltage to
Low Voltage Transition
QC mode is reset during the OVP rising edge.
Over-Current Protection (OCP)
The MP5032 provides a constant current limit.
The current-limit threshold is adjustable by an
external resistor.
Once the device reaches its current-limit
threshold, the internal circuit regulates the gate
voltage to hold the current in the power
MOSFET constant.
R2
Figure 3: ADJ Configuration
Input Over-Voltage and Discharge
To protect the downstream device from an
over-voltage condition, the MP5032 provides an
input over-voltage protection (OVP) shutdown
function. Since the MP5032 supports QC 3.0
protocol, it has a dynamic OVP threshold.
An accurate and fast comparator monitors the
over-voltage condition of the input. If the input
voltage rises above the threshold, the gate of
the internal MOSFET is pulled low quickly, and
the power MOSFET is shut down. At the same
time, the input-to-ground discharge path is
active. When input voltage falls below the
typical 5.5V, the MP5032 exits OVP mode.
The OVP shutdown function is blanked during
the high-to-low voltage mode change period.
The input-to-ground discharge resistance is
always active during the high-to-low voltage
mode change period. The discharge path is
turned off when FB is lower than 108% * VREF
with 20ms of additional delay (see Figure 4).
MP5032 Rev r1.0
8/4/2017
The MP5032 supports different voltage modes.
Table 2 shows the over-current threshold for
each case. Figure 5 shows an example of the
current limit versus the bus voltage curve.
Table 2: OCP Threshold vs. Bus Voltage
USB Bus
Voltage
Mode
Over-Current
Threshold (VLIMIT)
5V
(actually 5.1V)
BC1.2 or
QC 2.0
4.8
9V
QC 2.0
4.08
12V
QC 2.0
3.12
3.6V - 6.4V
6.6V - 9.6V
9.8V - 12V
4.8
QC 3.0
4.08
3.12
The current-limit threshold can be calculated
with Equation (2):
ILIMIT (A) 
VLIMIT
RLIMIT (k Ω)
(2)
If the current limit is set below 1A, the VLIMIT
accuracy cannot be guaranteed.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
13
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
THIC_ON
Vbus (V)
12
Vout
9.8
<3.5V
6.6
Iout
2.08
2.7 3.2
Current Limit (A)
RLIM=1.5k
Figure 5: Over-Current Threshold vs. VBUS
For Table 2, the external RLIMIT can set the
current-limit threshold. In QC 2.0 mode, the
9V/12V output’s current-limit threshold varies
accordingly to maintain a fairly constant power
limit. In QC 3.0 mode, when 3.6V < VOUT <
6.6V, the MP5032 uses a 5V mode current limit.
When 6.6V ≤ VOUT < 9.8V, the MP5032 uses a
9V mode current limit. When VOUT ≥ 9.8V, the
MP5032 uses a 12V mode current limit.
If the over-current (OC) is triggered, and VOUT <
3.5V lasts for 2ms, the MP5032 enters hiccup
mode. If OC occurs but VOUT > 3.5V, the
MP5032 works in constant current (CC) limit
mode without hiccup. In this case, VOUT drops
while the output current increases slowly.
Figure 6 shows the curve of VOUT versus the
output current after triggering the 5V current
limit.
VOUT (V)
THIC_OFF
Vin=5V
5.6
5.5
5.4
5.3
5.2
5.1
5
4.9
4.8
4.7
4.6
Figure 7: Over-Current Protection
Short-Circuit Protection (SCP)
If the load current increases rapidly due to a
short circuit, the current may exceed the current
limit threshold greatly before the control loop
can respond. If the current reaches an internal
secondary current-limit level (about 6A), a fast
turn-off circuit activates to turn off the power
MOSFET. This limits the peak current through
the switch to limit the input voltage drop. The
fast-off response time typical value is 700ns. If
the fast-off works, the power MOSFET remains
off for 300μs. Afterward, the power MOSFET
turns on again. If the part is still in a short-circuit
condition, the MP5032 treats this as an overcurrent condition to enter hiccup mode. After
the short-circuit condition is removed, the
MP5032 recovers automatically.
Auto Detection
The MP5032 integrates the USB dedicated
charging port auto-detect function, which
recognizes most mainstream portable devices.
It supports the following charging schemes:
• USB Battery Charging Specification BC1.2/
Chinese
Telecommunications
Industry
Standard YD/T 1591-2009
• Divider mode
• 1.2V/1.2V mode
3
3.1
3.2
3.3
OUTPUT CURRENT (A)
3.4
3.5
Figure 6: I-V Curve after OC is Triggered
In hiccup mode, the MP5032 turns off the
power MOSFET. The hiccup signal resets QC
mode to 5V. ADJ starts to change VIN to 5V,
and the current-limit threshold changes to the
5V spec. Two seconds (hiccup off-timer) later,
the MP5032 restarts to check the OC state. If
the OC still remains in 5V mode, the MP5032
follows the previous operation. If the OC does
not exist in 5V mode, the MP5032 recovers to
operate normally in 5V mode (see Figure 7).
MP5032 Rev r1.0
8/4/2017
• Qualcomm quick charge mode 3.0 and 2.0
Thermal Shutdown
Thermal shutdown prevents the chip from
operating at exceedingly high temperatures.
When the silicon die temperature exceeds
160°C, the entire chip shuts down. When the
temperature falls below its lower threshold
(typically 125°C), the chip is enabled again.
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
14
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
APPLICATION INFORMATION
VOUT _MAX V  
R1  R 2 //R 5
 VFB V  (3)
R 2 //R 5
The required feedback resistor of R1 must be
greater than 30kΩ (see Figure 8).
MP5032 Rev r1.0
8/4/2017
R5
ADJ
FB
R2
Figure 8: VADJ-Set Maximum VOUT
Other Considerations
The upstream DC/DC converter must have a
current-limit threshold higher than the MP5032's
current limit.
PCB Layout Guidelines
Efficient PCB layout is critical for stable
operation and thermal dissipation. For best
results, refer to Figure 9 and follow the
guidelines below.
1. Use short, direct, and wide traces to
connect the IC’s in/out.
2. Keep the ADJ trace to the upstream
converter’s FB pin as short as possible.
3. Route the ADJ trace as far from the
switching node as possible to avoid noise
injection.
GND
OUT
EN
OUT
IN
IN
GND
C1
GND
DP
DP
DM
DM
ILIM
VBUS
ADJ
Type-A
Selecting the VADJ Resistor
ADJ has a controlled current sink internally.
Through ADJ, the line drop compensation and
QC mode transition is achieved. The ADJ sink
current capability is 500µA. It is recommended
that the pre-side converter use a kΩ level
feedback resistor. The current through the highside feedback resistor must be less than 500µA.
There is another VADJ configuration to limit the
maximum output voltage (i.e.: to insert R5
between FB and ADJ). With R5, the maximum
output voltage is limited by Equation (3):
MP5032
R1
Converter
R3
Selecting the ILIM Resistor
The current limit value can be set by the ILIM
resistor. The programmable current limit can be
calculated with Equation (2). The minimum
current limit should be set higher than the
system’s full load current.
C1
MP5032
Selecting the Output Capacitor
Use low ESR capacitors for the best
performance. Ceramic capacitors with X5R or
X7R dielectrics are highly recommended
because of their low ESR and small
temperature coefficients. A 22μF ceramic
capacitor is recommended for most applications.
IN
OUT
C2
Selecting the Input Capacitor
Use low ESR capacitors for the best
performance. Ceramic capacitors with X5R or
X7R dielectrics are highly recommended
because of their low ESR and small
temperature coefficients. A 22μF ceramic
capacitor is recommended for most applications.
The input capacitor must also consider prestage converter stability. The input capacitor of
the MP5032 is the output capacitor of the
converter. Ensure that the converter is stable
with an additional output capacitor.
GND
Top Layer
DC/DC
FB
R5
Bottom Layer
Figure 9: Recommended Layout
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
15
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
Design Example
Table 3 is a design example following the
application
guidelines
for
the
given
specifications.
Table 3: Design Example
VIN (V)
Current Limit (A)
3.6 - 12
3.2
The detailed application schematic is shown in
Figure 10 and Figure 11. The typical
performance and circuit waveforms are shown
in the Typical Performance Characteristics
section. For more detailed device applications,
please refer to the related evaluation board
datasheet.
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
16
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
TYPICAL APPLICATION CIRCUITS
VIN
12V-36V
1,2
C3
22μF
BST
IN
10
MP2499M
5
7
C4
0.1μF
C5
0.1μF L1
15μH
9
SW
6
FB
8 AGND
4
ISENSE
R4 R2
33kΩ 24.3kΩ
OUT
IN
MP5032
5
R5
1kΩ
PGND
11,12,13
2
C2
22μF
R1
82.5kΩ
EN/SYNC
VCC
3
C1
66μF
OUT
3.6V-12V
DM 7
ADJ
Type-A
DP
6
R3
1.5kΩ
QC3.0
ILIM
EN
GND
8
1
4
Figure 10: MP5032 + MP2499M for CLA Car Charger
13
BST
VIN
R8
30kΩ
11
10
R6
2
C4
4.7µF
3
OUT
MP3431
EN
FB
3
8
C2D
0.1µF
C6
COMP
VDD
SS
C8
22nF
ILIM
R1
49.9kΩ
R2
14.3kΩ
4
9
R4
8.2nF
1kΩ
C7
10nF
R10
1kΩ
OUT
4.5V-12V
2
C2
QC3.0
22µF
MP5032
DM
7
Type-A
5
R9
3kΩ
ADJ
DP
6
R5
34kΩ
OUT
IN
C1
44µF
5
MODE
PGND
J1
130kΩ
R7
20kΩ
0.1µF
SW
12
AGND
1-2: FCCM
2-3: PSM
Float 2: USM
C3C
22µF
6
C3B
22µF
1
1.5µH
C3A
22µF
3
2
1
VIN
C5
L1
7
3-4.2V
ILIM
R3
1.5kΩ
GND
EN
8
1
4
Figure 11: MP5032 + MP3431 for Power Bank
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
17
MP5032 – QC 3.0 CONTROLLER WITH CURRENT-LIMIT SWITCH
PACKAGE INFORMATION
TSOT23-8
See note 7
EXAMPLE
TOP MARK
PIN 1 ID
IAAAA
RECOMMENDED LAND PATTERN
TOP VIEW
SEATING PLANE
SEE DETAIL ''A''
FRONT VIEW
SIDE VIEW
NOTE:
DETAIL ''A''
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD
FLASH, PROTRUSION OR GATE BURR.
3) PACKAGE WIDTH DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
4) LEAD COPLANARITY (BOTTOM OF LEADS
AFTER FORMING) SHALL BE 0.10 MILLIMETERS
MAX.
5) JEDEC REFERENCE IS MO-193, VARIATION BA.
6) DRAWING IS NOT TO SCALE.
7) PIN 1 IS LOWER LEFT PIN WHEN READING TOP
MARK FROM LEFT TO RIGHT, (SEE EXAMPLE TOP
MARK)
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
MP5032 Rev r1.0
8/4/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
18