LTC6804 datasheet(39/90 Pages) AD

39 / 90 page

LTC6810-1/LTC6810-2

Rev. A

For more information www.analog.com

RESET EVENT

DEVICE BEHAVIOR

Power Cycle

(V+ and VREG both

power cycled)

Transition to STANDBY state.

All registers and state machines are reset to default values.

Cell discharge is disabled.

Thermal Shutdown

Cell discharge is disabled.

All of Configuration Register Group is reset.

The COMM Register Group is reset.

Watchdog Timeout

(while Discharge Timer

is Running)

Transition to EXTENDED BALANCING state.

CFGR0 of Configuration Register is reset.

If DTMEN (in Configuration Register Group) = 0

then CFGR1, CFGR2 and CFGR3 of Configuration Register Group are reset.

The COMM Register Group is reset.

Watchdog Timeout

(no Discharge Timer

Running)

Transition to SLEEP state.

Cell discharge is disabled.

All state machines are reset.

All of Configuration Register Group is reset.

The PWM Register Group is reset.

The COMM Register Group is reset.

Discharge Timeout

(while Watchdog

Timeout has Elapsed)

Transition to SLEEP state.

Same behavior as the previous case above.

Discharge Timeout

(while Watchdog

Timeout is not Elapsed)

Cell discharge is disabled.

The PWM Register Group is reset.

If DTMEN (in Configuration Register) = 1

then CFGAR1, CFGAR2 and CFGAR3 of Configuration Register Group are reset.

CFGAR4 and CFGAR5 of Configuration Register Group are reset.

OPERATION

RESET BEHAVIORS

Power cycling, thermal shutdown, watchdog timeout

and discharge timeout can cause various registers and

circuitry to reset when they occur. The following sum-

marizes the behaviors when these events occur:

LTC6804 Datasheet(PDF) 39 Page - Analog Devices

LTC6804 Datasheet(HTML) 39 Page - Analog Devices

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