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TPS65721 Datasheet(PDF) 10 Page - Texas Instruments

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Part # TPS65721
Description  PMU for Bluetooth Headsets
PDF  50 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65721 Datasheet(HTML) 10 Page - Texas Instruments

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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
TPS65721
SLVS979 – OCTOBER 2009
www.ti.com
PIN FUNCTIONS for CHIP SCALE VERSION (YFF package)
PIN
I/O
DESCRIPTION
NAME
NO.
AC
E5
I
Input power for power manager, connect to external DC supply.
SYS
E4, D4
O
System voltage; output of the power path manager. Power input for step-down converter DCDC1
BAT
E3, D3
I/O
Connect to battery + terminal
ISET
D5
I
Connect a resistor from this pin to GND to set fast charge current
TS
C2
I
Connect a thermistor from this pin to GND for battery temperature
AGND
C1
Analog ground
PGND
E1
Power ground
GND
B2
Connect to AGND and PGND
L1
E2
O
Switch output of step-down converter
FB_DCDC1
D1
I
Feedback input of step-down converter
HOLD_DCDC1
D2
I
Power-On input for DCDC1 converter. When pulled HIGH, the DCDC converter is kept enabled after
PB_IN was released HIGH.
VINLDO1
B1
I
Input voltage for LDO1
VLDO1
A1
O
Output voltage of LDO1
HOLD_LDO1
A2
I
Power-On input for LDO1. When pulled HIGH, LDO1 is kept enabled after PB_IN was released
HIGH.
SDAT
B5
I/O
Data line for the I2C interface
SCLK
A5
I
Clock input for the I2C interface
PB_IN
C4
I
Push button input; Turns on DCDC1 and LDO1 if pulled to GND.
INT
C3
O
Open drain interrupt output
RESET
C5
O
Open drain output of the reset generator; This output goes active LOW when the output voltage of
LDO1 falls 8% below its target voltage.
GPIO0
B4
I/O
General purpose I/O
GPIO1
A4
I/O
General purpose I/O
GPIO2
B3
I/O
General purpose I/O or 5mA current sink
GPIO3
A3
I/O
General purpose I/O or 5mA current sink
QFN version (RSN package): PIN ASSIGNMENT (top view)
10
Submit Documentation Feedback
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65720 TPS65721



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