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BQ20Z95DBT Datasheet(PDF) 2 Page - Texas Instruments |
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BQ20Z95DBT Datasheet(HTML) 2 Page - Texas Instruments |
2 / 20 page www.ti.com SYSTEM PARTITIONING DIAGRAM Coloumb Counter HWOver Current & ShortCircuit Protection CellVoltage Multiplexer N-ChannelFET Drive PreChargeFET & PGODDrive PowerMode Control SMBD DISP VC5 VC4 VC3 VC2 VC1 ¯¯¯¯¯ SMBC ¯¯¯¯¯¯ ¯¯¯¯ CellBalancing Temperature Measurement LEDDisplay 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 typ. Pack + SMBC SMBD bq20z95 GND VC4 VC3 VC2 VC1 VDD OUT CD bq294xx 1 DSG 2 PACK 3 VCC 4 ZVCHG 5 6 PMS 7 VSS 8 REG33 9 TOUT 10 VCELL+ CHG BAT 37 VC1 18 VC2 17 VC3 16 VC4 15 VC5 14 ASRP 13 ASRN 12 11 GPOD 19 NC PRES TS 2 PFIN SAFE SMBD TS 1 LED4 LED5 GSRP 23 GSRN 24 25 VSS 26 REG25 27 RBI 28 VSS 29 30 31 32 33 34 35 36 38 21 20 22 SMBC DISP VSS 43 39 40 41 42 44 LED1 LED2 LED3 RESET ¯¯¯¯¯¯ ¯¯¯¯¯ MRST ALERT ¯¯¯¯¯¯ ¯¯¯¯ ¯¯¯¯ ¯¯¯¯¯ NC bq20z95 SLUS757 – JULY 2007 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. bq20z95 DBT Package (TOP VIEW) 2 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated Product Folder Link(s): bq20z95 |
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