Datasheet

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No Power
POWER SUPPLY TO PACK
FETS: OFF(*2)
REG: start Working
I
2
C: OFF
CURRENT FAULT : OFF
CELL MONITOR : OFF
WATCHDOG : OFF
THERMISTOR PWER CTRL : OFF
INITIALIZE
FETS: OFF
REG: ON
I
2
C: ON
CURRENT FAULT : OFF
CELL MONITOR : OFF
WATCHDOG : ON
THERMISTOR PWER CTRL : OFF
HOST FAULT MODE
REG >2.4 V REG < 2.3 V
FETS: ON *2
REG: ON
I
2
C: ON
CURRENT FAULT : ON
CELL MONITOR : ON
WATCHDOG : ON
THERMISTOR PWER CTRL : ON
NORMAL MODE
RESET WDTF LATCH
HOST CLOCK STOP
STATE CTL REGISTER b1 = 1
AND NO SUPPLY POWER TO PACK
FETS: OFF
REG: ON
I
2
C: ON
CURRENT FAULT : OFF
CELL MONITOR : OFF
WATCHDOG : OFF
THERMISTOR PWER CTRL : OFF
SLEEP MODE
SLEEP MODE EXIT BY
STATE CTL REGISTER b0 = 0
AND SLEEP PIN = GND
*1
FETS: OFF
REG: OFF
I
2
C: OFF
CURRENT FAULT : OFF
CELL MONITOR : OFF
WATCHDOG : OFF
THERMISTOR PWER CTRL : OFF
SHIP MODE
SHIP MODE SET BY STATE CTL REGISTER
b1 = 1 AND NO SUPPLY POWER TO PACK
FETS: OFF
REG: ON
I
2
C: ON
CURRENT FAULT : ON
CELL MONITOR : ON
WATCHDOG : ON
THERMISTOR PWER CTRL : ON
CURRENT DETECT MODE
STATE CTL REGISTER b0 = 1
or SLEEP PIN = REG or OPEN
*1
RESET CURRENT LATCH
IFAULT
SHIP MODE SET BY
STATE CTL REGISTER
b1 = 1 AND NO SUPPLY
POWER TO PACK
Interrupt Request When
Enrering These States
*1: Interrupt Request is Granted When Only External Sleep Pin Changes
*2: When PMS connect to Pack, Default State of CHG FET is ON.
SHIP MODE EXIT BY POWER
SUPPLY TO PACK
bq29312A
SLUS629A – JANUARY 2005 – REVISED AUGUST 2005
STATE DIAGRAM
9