bq76PL536APAP datasheet(46/60 Pages) TI

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bq76PL536A

SLUSAD3A – JUNE 2011 – REVISED AUGUST 2012

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CONFIG_CUVT REGISTER (0x45)

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)

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)

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)

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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