BQ29330 Datasheet, PDF (4/26 Pages) Texas Instruments – 2-,3-,AND 4-CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE

bq29330
SLUS673A – SEPTEMBER 2005 – REVISED DECEMBER 2005
FUNCTIONAL BLOCK DIAGRAM
PACK–
PACK+
R_ZVCHG
GG VDD GG RST
C
REG
2nd
Protection
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32 kHz INPUT
FROM GG
GG INTERFACE
SDATA
GG INTERFACE
SCLK
ALERT TO GG
OPEN DRAIN
OUTPUT
PACK DSG
CHG
ZVCHG
VCC
REG
RST
PMS
NCH GATE
DRIVER
CHG_ON
DSG_ON
FET
LOGIC
ZVCHG_ON _{GATE DRIVER}
3.3-V LDO
2.5-V LDO
POR
WDI
SDATA
SCLK
XALERT
GPOD
REGISTERS
STATUS
OUTPUT CTL
STATE CTL
FUNCTION CTL
CELL SEL
OLV
OLD
SCC
SCD
OPEN
DRAIN
OUTPUT
WATCHDOG
TIMER
SHIP_ON
SLEEP_ON
POWER
MODE
CIRCUIT
CELL
CELL1..4 SELECTION
SWITCHES
DELAY
0.975V
BAT/25
PACK/25
CELL VOLTAGE
TRANSLATION
OVERL-OAD
COMPARATOR
OVERCURRENT
SHORT CIRCUIT
COMPARATOR
SHORT_CIRCUIT
DRIVE
CONTROL
LEDOUT
BAT
VC1
VC2
VC3
VC4
VC5
C
LED
CELL+
CELL–
C
CELL
R
TOUT ^THERM
GND
C
THERM
SRP
SRN
GG LED
INPUT
CELL 4
CELL 3
CELL 2
CELL 1
GG ANALOG
INPUT
GG TS
INPUT
THERMISTOR
R
SNS
4