BQ4050 Datasheet, PDF (5/53 Pages) Texas Instruments – CEDV Gas Gauge and Protection Solution

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bq4050
SLUSC67A – MARCH 2016 – REVISED MARCH 2016
BAT
+
3.1 V –
PBI
Power Supply Control
VCC
PACK
Reference
System
BATDET
ENVCC PACK
Detector
PACKDET
1.8 V
Domain
Shutdown SHUTDOWN
Latch
SHOUT
ENBAT _BAT
Control
VC4
VC3
VC2
VC1
Cell Balancing
CDEN4
CDEN3
ADC Mux
CDEN2
ADC
CDEN1
BAT
CHGEN
CHG
Pump
CHGOFF
BAT
DSGEN
DSG
Pump
CHG, DSG Drive
2 kΩ CHG
VCC
8 kΩ
2 kΩ PCHG
PACK
2 kΩ DSG
DSGOFF
Pre-Charge Drive
PCHGEN
BAT
BAT
CHGEN
CHG
Pump
Zero-Volt Charge
Figure 1. Pin Equivalent Diagram 1
ZVCD
ZVCHGEN
VCC
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