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TPS65721RSNR Datasheet(PDF) 11 Page - Texas Instruments |
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TPS65721RSNR Datasheet(HTML) 11 Page - Texas Instruments |
11 / 50 page SYS BAT 4.7uF TS NTC AC ISET 2.2uF 1uF LiIon SYS PB_IN VLDO1 THRESHOLD RESET SCLK SDAT set charge current LDO1 200 mA BAT INT charger / powerpath ON / OFF FB_DCDC1 2.2uH L1 DCDC 1 200mA 4.7uF TPS65721 SYS VINLDO1 Vout1 Vout2 GPIO1 GPIO2 GPIO0 GPIO3 GPIOor 5mA current sink I2Cinterface reset generator / startuplogic PGND AGND HOLD_LDO1 HOLD_DCDC1 MODE FB_LDO1 AC R5 R6 R1 R2 R3 R4 22pF TPS65720 TPS65721 www.ti.com SLVS979 – OCTOBER 2009 FUNCTIONAL BLOCK DIAGRAM PIN FUNCTIONS for QFN VERSION (RSN package) PIN I/O DESCRIPTION NAME NO. AC 17, 18 I Input power for power manager, connect to external DC supply. SYS 19, 20 O System voltage; output of the power path manager. Power input for step-down converter DCDC1 BAT 21, 22 I/O Connect to battery + terminal ISET 16 I Connect a resistor from this pin to GND to set fast charge current TS 27 I Connect a thermistor from this pin to GND for battery temperature AGND 28 Analog ground PGND 24 Power ground L1 23 O Switch output of step-down converter FB_DCDC1 26 I Feedback input of step-down converter HOLD_DCDC1 25 I Power-On input for DCDC1 converter. When pulled HIGH, the DCDC converter is kept enabled after PB_IN was released HIGH. VINLDO1 30 I Input voltage for LDO1 VLDO1 31 O Output voltage from LDO1 FB_LDO1 1 I Feedback input for LDO1 HOLD_LDO1 2 I Power-On input for LDO1. When pulled HIGH, LDO1 is kept enabled after PB_IN was released HIGH. SDAT 12 I/O Data line for the I2C interface SCLK 8 I Clock input for the I2C interface PB_IN 15 I Push button input; Turns on DCDC1 and LDO1 if pulled to GND. INT 13 O Open drain interrupt output Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): TPS65720 TPS65721 |
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