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BQ2002CSN Datasheet(PDF) 3 Page - Texas Instruments |
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BQ2002CSN Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 12 page  3 bq2002C Chip on VCC 4.0V Battery Voltage too High? Battery Temperature? Charge Pending Fast LED = Low SD2002C.eps Battery Voltage too Low? VBAT < 2V VTS < VCC/2 VTS > VCC/2 VBAT > 0.84V and VBAT < 2V and VTS > VCC/2 VBAT < 0.84V 0.84V < VBAT VBAT > 2V Trickle LED = Flash Trickle LED = Z VBAT > 2V or VTS < VCC/2 or PVD or - V or Maximum Time Out VBAT > 2V VBAT 2V Figure 2. State Diagram OSC TM CC LED VCC VSS BAT INH Clock Phase Generator Timing Control Sample History A to D Converter MCV Check Power Down TS Bd2002CEG.eps Voltage Reference Power-On Reset TCO Check HTF Check LBAT Check Charge-Control State Machine PVD, - V ALU Figure 3. Block Diagram |
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