BQ29400_16 Datasheet, PDF (6/16 Pages) Texas Instruments – VOLTAGE PROTECTION

Not Recommended for New Designs:
bq29400, bq29400A
bq29401, bq29405
bq29400, bq29400A, bq29405
SLUS568C – JULY 2003 – REVISED SEPTEMBER 2005
APPLICATION INFORMATION
BATTERY CONNECTIONS
The following diagrams show the TSSOP package device in different cell configurations.
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1 _VC1
2 _VC2
3 _VC3
4 _GND
OUT ⁸
VDD ⁷
CD ⁶
VC4 ⁵
C_DELAY
Figure 5. 4-Series Cell Configuration
1 _VC1
2 _VC2
3 _VC3
4 _GND
OUT ⁸
VDD ⁷
CD ⁶
VC4 ⁵
C_DELAY
Figure 6. 3-Series Cell Configuration
(Connect together VC1 and VC2)
1 _VC1
2 _VC2
3 _VC3
4 _GND
OUT ⁸
VDD ⁷
CD ⁶
VC4 ⁵
C_DELAY
Figure 7. 2-Series Cell Configuration
CELL CONNECTIONS
To prevent incorrect output activation the following connection sequences must be used.
4-Series Cell Configuration
• VC1(=VDD) → VC2 → VC3 → VC4 → GND or
• GND → VC4 → VC3 → VC2 → VC1(=VDD)
3-Series Cell Configuration
• VC1(=VC2=VDD) → VC3 → VC4 → GND or
• GND → VC4 → VC3 → VC1(=VC2=VDD)
2-Series Cell Configuration
• VC1(=VC2=VC3=VDD) → VC4 → GND or
• GND → VC4 → VC1(=VC2=VC3=VDD)
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