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BQ20Z75_0809 Datasheet(PDF) 2 Page - Texas Instruments |
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BQ20Z75_0809 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 18 page SYSTEM PARTITIONING DIAGRAM Coloumb Counter HWOver Current & ShortCircuit Protection CellVoltage Multiplexer N-ChannelFET Drive PreChargeFET & PGODDrive PowerMode Control SMBD VC5 VC4 VC3 VC2 VC1 ¯¯¯¯¯ SMBC ¯¯¯¯¯¯ CellBalancing Temperature Measurement DataFlash Memory SMB 1.1 Impedance Track ™ GasGauging SHA-1 Authentication Over- & Under- Voltage Protection Voltage Measurement OverCurrent Protection Oscillator Charging Algorithm FuseBlow Detectionand Logic Over Temperature Protection Watchdog Regulators RESET ALERT ¯¯¯¯¯¯ REG33 REG25 VCELL+ MSRT RBI SystemControl AFEHWControl Pack - RSNS 5m – 20m typical Pack + SMBC SMBD bq20z75 GND VC4 VC3 VC2 VC1 VDD OUT CD bq294xx 1 DSG 2 PACK 3 11 VCC ALERT 4 12 ZVCHG PRES 5 13 6 14 PMS TS2 7 15 VSS PFIN 8 16 REG33 SAFE 9 17 TOUT SMBD 10 18 19 VCELL+ SMBC NC CHG 38 BAT 37 VC1 VSS 36 28 VC2 RBI 35 27 VC3 REG25 34 26 VC4 VSS 33 25 VC5 MRST 32 24 ASRP GSRN 31 23 ASRN GSRP 30 22 RESET VSS VSS 29 21 20 GPOD TS1 bq20z75 SLUS723C – JULY 2007 – REVISED JULY 2008............................................................................................................................................................... www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. TSSOP (PW) (TOP VIEW) 2 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): bq20z75 |
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