Datasheet

bq76PL536A

SLUSAD3A –JUNE 2011–REVISED AUGUST 2012

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CONFIG_CUVT REGISTER (0x45)

7 6 5 4 3 2 1 0

µs/ms – – CUVD[4] CUVD[3] CUVD[2] CUVD[1] CUVD[0]

The CONFIG_CUVT register determines cell overvoltage detection delay time.

[7] (µs/ms): Determines the units of the delay time, microseconds or milliseconds

0 = Microseconds

1 = Milliseconds

[4..0] CUVD: 0x01 = 100; each binary increment adds 100 until 0x1f = 3100.

Note: When this register is programmed to 0x00, the delay becomes 0s AND the CUV state

is NOT latched in the CUV_FAULT[] register. In this operating mode, the overvoltage

state for a cell is virtually instantaneous in the CUV_FAULT[] register. This mode may

cause system firmware to miss a dangerous cell undervoltage condition.

CONFIG_OT REGISTER (0x46)

7 6 5 4 3 2 1 0

OT2[3] OT2[2] OT2[1] OT2[0] OT1[3] OT1[2] OT1[1] OT1[0]

The CONFIG_OT register holds the configuration of the overtemperature thresholds for the two TS inputs.

For each respective nibble (OT1 or OT2), the value 0x0 disables this function. Other settings program a trip

threshold. See the Ratiometric Sensing section for details of setting this register. Values above 0x0b are illegal

and should not be used.

CONFIG_OTT REGISTER (0x47)

7 6 5 4 3 2 1 0

COTD[7] COTD[6] COTD[5] COTD[4] COTD[3] COTD[2] COTD[1] COTD[0]

The CONFIG_OTT register determines cell overtemperature detection delay time.

0x01 = 10 ms; each binary increment adds 10 ms until 0xff = 2.55 seconds.

Note: When this register is programmed to 0x00, the delay becomes 0s AND the OT state is NOT

latched in the ALERT_STATUS[] register. In this operating mode, the overtemperature state

for a TSn input is virtually instantaneous in the register. This mode may cause system

firmware to miss a dangerous overtemperature condition.

USERx REGISTER (0x48–0x4b) (USER1–4)

7 6 5 4 3 2 1 0

USER[7] USER[6] USER[5] USER[4] USER[3] USER[2] USER[1] USER[0]

The four USER registers can be used to store user data. The part does not use these registers for any internal

function. They are provided as convenient storage for user S/N, date of manufacture, etc.

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