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BQ29312A Datasheet(PDF) 3 Page - Texas Instruments |
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BQ29312A Datasheet(HTML) 3 Page - Texas Instruments |
3 / 39 page ![]() www.ti.com RECOMMENDED OPERATING CONDITIONS bq29312A SLUS629A – JANUARY 2005 – REVISED AUGUST 2005 MIN NOM MAX UNIT Supply Voltage (BAT or PACK) 4.5(1) 25 V VI(STARTUP) Start-up voltage (PACK) 5.0 V VC1, VC2, VC3, VC4 0 BAT SR1, SR2 –0.5 0.5 VC5 –0.5 3.0 VI Input voltage range V VCn – VC(n+1), (n = 1, 2, 3, 4 ) 0 5.0 PMS 0 PACK SLEEP 0 REG VIH 0.8 × REG REG V Logic level input voltage SCLK, SDATA, WDI VIL 0 0.2 × REG VIH V(PACK) – 0.2 V(PACK) V PMS logic level PMS VIL 0 0.2 PMS pullup/pulldown resistance RPMS 100 1000 k Ω VO Output voltage OD 25 V IO Output current XALERT, SDATA 200 µA CELL ±10 µA Input current, II SLEEP -0.5 1.0 µA External 3.3-V REG capacitor C(REG) 4.7 µF R(CELL) 100 Ω Extend CELL output filter C(CELL) 100 nF OD 1 mA IOL Input frequency WDI 32.768 kHz WDI high time 2 28 µs TA Operating temperature –40 85 °C (1) V(PACK) supply voltage must rise above start-up voltage on power up to enable the internal regulator which drives REG and TOUT as required. Once V(PACK) is above the start-up voltage, it can fall down to the minimum supply voltage and still meet the specifications of the bq29312A. 3 |
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