BQ28400PWR Datasheet, PDF (2/24 Pages) Texas Instruments – Tablet PC and Netbook 2-Series Cell Li-Ion Battery Gas Gauge and Protection

bq28400
SLUSA61A – OCTOBER 2010 – REVISED DECEMBER 2010
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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.
BLOCK DIAGRAM and TYPICAL IMPLEMENTATION
PACK +
Power Control , LDO
FUSE
I/O
Pch FET Drive
Pre-Charge Control
Fuse
Drive
SMBD
SMBC
bq28400
PACK –
System Interface
Program Memory
User Settings Data Flash
Standard 15-bit Delta-Sigma
A to D Converter
Integrating Delta -Sigma
A to D Converter
Protection Configuration, Status
and Control Registers
Cell Voltage Translation
Over Current and Short Circuit
Protection
BAT
VC1
VC2
VSS
CB_EN
RSNS
2
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