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TPS65720 Datasheet(PDF) 6 Page - Texas Instruments

Part # TPS65720
Description  Integrated PMIC With 1 DC-DC, 1 LDO, Battery Charger and GPIO
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65720 Datasheet(HTML) 6 Page - Texas Instruments

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15
14
13
12
11
10
9
12345678
2423222120191817
ISET
PB_IN
RESET
INT
SDAT
MODE
NC
NC
25
26
27
28
29
30
31
32
TPS65721
HOLD_DCDC1
FB_DCDC1
TS
AGND
GND
VINLDO1
VLDO1
NC
TPS65720, TPS657201, TPS657202, TPS65721
SLVS979A – OCTOBER 2009 – REVISED SEPTEMBER 2015
www.ti.com
RSN Package
32-Pin WQFN With Thermal Pad
Top View
Pin Functions—WQFN (TPS65721)
PIN
I/O
DESCRIPTION
NAME
NO.
AC
17, 18
I
Input power for power manager, connect to external DC supply.
AGND
28
Analog ground
BAT
21, 22
I/O
Connect to battery + terminal
FB_DCDC1
26
I
Feedback input of step-down converter
FB_LDO1
1
I
Feedback input for LDO1
GND
29
Connect to AGND and PGND
GPIO0
7
I/O
General purpose I/O
GPIO1
6
I/O
General purpose I/O
GPIO2
5
I/O
General purpose I/O or 5-mA current source
GPIO3
4
I/O
General purpose I/O or 5-mA current source
Power-on input for DCDC1 converter. When pulled HIGH, the DC-DC converter is kept enabled
HOLD_DCDC1
25
I
after PB_IN was released HIGH.
Power-on input for LDO1. When pulled HIGH, LDO1 is kept enabled after PB_IN was released
HOLD_LDO1
2
I
HIGH.
INT
13
O
Open-drain interrupt output
ISET
16
I
Connect a resistor from this pin to GND to set fast charge current
L1
23
O
Switch output of step-down converter
MODE
11
I
Pull HIGH to force the DCDC1 converter to PWM mode.
PB_IN
15
I
Push button input; Turns on DCDC1 and LDO1 if pulled to GND.
PGND
24
Power ground
Open-drain output of the reset generator; This output goes active LOW when the input voltage at
RESET
14
O
pin THRESHOLD falls below the threshold voltage.
SCLK
8
I
Clock input for the I2C interface
SDAT
12
I/O
Data line for the I2C interface
SYS
19, 20
O
System voltage; output of the power path manager. Power input for step-down converter DCDC1
Input voltage to the reset comparator. When the input voltage falls below the threshold, the RESET
THRESHOLD
3
I
output is actively pulled LOW.
TS
27
I
Connect a thermistor from this pin to GND for battery temperature
VINLDO1
30
I
Input voltage for LDO1
VLDO1
31
O
Output voltage from LDO1
ThermalPad
Connect to GND
6
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Copyright © 2009–2015, Texas Instruments Incorporated
Product Folder Links: TPS65720 TPS657201 TPS657202 TPS65721


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