BQ76PL536APAPR datasheet(39/60 Pages) TI1

39 / 60 page

bq76PL536A

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SLUSAD3A – JUNE 2011 – REVISED AUGUST 2012

1 = The internal consistency check has failed self-test. The host should attempt to reset

the device, see the RESET section. If the fault persists, the failure should be

considered uncorrectable.

[4] (FORCE):

This bit asserts the FAULT signal. It can be used to verify correct operation and

connectivity of the FAULT line as a part of system self-test.

0 = Deassert FAULT (default)

1 = Assert the FAULT signal.

[3] (POR):

This bit indicates a power-on reset (POR) has occurred.

0 = No POR has occurred since this bit was last cleared by the host.

1 = A POR has occurred. This notifies the host that default values have been loaded to

Group1 and Group2 registers, and OTP contents have been copied to Group3

registers.

[2] (CRC):

This bit indicates a garbled packet reception by the device.

0 = No errors

1 = A CRC error was detected in the last packet received.

[1] (CUV):

This bit indicates that this bq76PL536A has detected a cell undervoltage (CUV) condition.

Examine CUV_FAULT[] to determine which cell caused the ALERT.

0 = All cells are above the CUV threshold (default).

1 = One or more cells is below the CUV threshold.

[0] (COV):

This bit indicates that this bq76PL536A has detected a cell overvoltage (COV) condition.

Examine COV_FAULT[] to determine which cell caused the FAULT.

0 = All cells are below the COV threshold (default).

1 = One or more cells is above the COV threshold.

COV_FAULT REGISTER (0x22)

–

OV[6]

OV[5]

OV[4]

OV[3]

OV[2]

OV[1]

[0..5] (OV[1]..[6]):

These bits indicate which cell caused the DEVICE_STATUS[COV] flag to be set.

0 = Cell[n] does not have an overvoltage fault (default).

1 = Cell[n] does have an overvoltage fault.

CUV_FAULT REGISTER (0x23)

–

UV[6]

UV[5]

UV[4]

UV[3]

UV[2]

UV[1]

b0..5 (UV[1]..[6]):

These bits indicate which cell caused the DEVICE_STATUS[CUV] flag to be set.

0 = Cell[n] does not have an undervoltage fault (default).

1 = Cell[n] does have an undervoltage fault.

PARITY_H REGISTER (0x24) (PRESULT_A (R/O))

OTT

OTV

CUVT

CUVV

COVT

COVV

FUNC

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