SSM2518 Datasheet, PDF (19/48 Pages) Analog Devices – Digital Input Stereo, 2 W, Class-D

Data Sheet
specified in this register, analog clipping may occur within the
range of possible digital codes.
FAULT DETECTION AND RECOVERY
Three fault conditions are detected by the SSM2518 fault
detection system: left channel overcurrent, right channel
overcurrent, and overtemperature. When any of these is
detected, the amplifier shuts down and a read-only I²C bit is set
to indicate the cause of the shutdown. The OC_L, OC_R, and
OT fault indicators are Bit 7, Bit 6, and Bit 5 (respectively) of
Register 0x08.
An autorecovery feature can be enabled for temperature faults,
current faults, or both, depending on the state of ARCV (Bit 1
and Bit 0 of Register 0x08).
SSM2518
If autorecovery is enabled, the amplifier waits a short time
(10 ms, 20 ms, 40 ms, or 80 ms) and attempts to recover. The
recovery delay is set by AR_TIME (Bit 7 and Bit 6 of Register 0x09).
The maximum number of consecutive recovery attempts can be
set to one, three, seven, or unlimited attempts; this number is
set by MAX_AR (Bit 3 and Bit 2 of Register 0x08).
If the autorecovery feature is disabled or the maximum number
of attempts has been reached, the amplifier remains shut down
until a software reset or manual fault recovery attempt occurs.
The manual fault recovery is triggered by setting the write-only
bit, MRCV (Bit 4 of Register 0x08).
Rev. A | Page 19 of 48