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BQ24086DRCR Datasheet(PDF) 6 Page - Texas Instruments |
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BQ24086DRCR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 35 page  DEVICE INFORMATION PIN ASSIGNMENT 1 IN TMR STAT 1 VSS STAT 2 2 3 4 5 6 7 8 9 10 PG TS BAT OUT IN TMR STAT 1 VSS STAT 2 1 2 3 4 5 6 7 8 9 10 ISET CE TE BAT OUT ISET bq24086DRC (TOP VIEW) bq24088DRC bq24087DRC (TOP VIEW) IN TMR STAT 1 VSS STAT 2 1 2 3 4 5 6 7 8 9 10 ISET PG CE BAT OUT bq24085DRC (TOP VIEW) bq24085, bq24086 bq24087, bq24088 SLUS784D – DECEMBER 2007 – REVISED AUGUST 2009............................................................................................................................................. www.ti.com TERMINAL FUNCTIONS, REQUIRED COMPONENTS TERMINAL NO. I/O DESCRIPTION AND REQUIRED COMPONENTS NAME bq24086/8 bq24085 bq24087 Charge Input Voltage and internal supply. Connect a 1- µF (minimum) IN 1 1 1 I capacitor from IN to VSS. CIN ≥ COUT Safety Timer Program Input, timer disabled if floating. Connect a resistor to TMR 2 2 2 I VSS pin to program safety timer timeout value STAT1 3 3 3 O Charge Status Output 1 (open-collector, seeTable 3) STAT2 4 4 4 O Charge Status Output 2 (open-collector, see Table 3) VSS 5 5 5 I Ground Charge current set point, resistor connected from ISET to VSS sets charge ISET 6 6 6 O current value. Connect a 0.1- µF capacitor from BAT to ISET for I (OUT) < 200 mA. PG 7 7 — O Power Good status output (open-collector), active low CE — 8 7 I Charge enable Input. CE = LO enables charger. CE = HI disables charger. Termination enable Input. TE = LO enables termination detection and battery TE — — 8 I absent detection. TE = HI disables termination detection and battery absent detection. Temperature Sense Input, connect to battery pack thermistor. Connect an TS 8 — — I external resistive divider to program temperature thresholds. Battery Voltage Sense Input. Connect to the battery positive terminal. BAT 9 9 9 I Connect a 390- Ω resistor from BAT to OUT for I(OUT) < 200 mA.. Charge current output. Connect to the battery positive terminal. Connect a 1- OUT 10 10 10 O µF (minimum) capacitor from OUT to VSS. There is an internal electrical connection between the exposed thermal pad Exposed and Vss pin of the IC. The exposed thermal pad must be connected to the Thermal Pad Pad Pad same potential as the VSS pin on the printed circuit board. Do not use the Pad thermal pad as the primary ground input for the IC. VSS pin must be connected to ground at all times. 6 Submit Documentation Feedback Copyright © 2007–2009, Texas Instruments Incorporated Product Folder Link(s): bq24085, bq24086 bq24087, bq24088 |
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