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TPS65721 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS65721 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 66 page 16 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 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: TPS65720 TPS657201 TPS657202 TPS65721 |
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