Texas Instruments 5611/13PHD2EVM Short-Circuit Protection and Fault-Reporting Circuitry

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		PBTL
LEFT BTL			RIGHT BTL
SPEAKER			SPEAKER
OUTPUT			OUTPUT
(J11 )			(J13)
OUTPUT STAGE CHANNEL LEFT			OUTPUT STAGE CHANNEL RIGHT
(SW1)			(SW2)
BTL	PBTL		BTL PBTL
PVDD
(J15)
RESET
(SW11 )
	SE LEFT INPUT (J20)	SE RIGHT	INPUT (J21)
PBTL Mode.:
	Input
	Signal

Figure 3. Figure 3. PBTL Mode Configuration

3Protection

This section describes the short-circuit protection and fault-reporting circuitry of the TAS5611 and TAS5613 devices.

3.1Short-Circuit Protection and Fault-Reporting Circuitry

The TAS5611 and TAS5613 is self-protecting devices that provides fault reporting (including high-temperature protection and short-circuit protection). TAS5611 and TAS5613 is configured in back-end auto-recovery mode, and therefore; resets automatically after all errors (M1, M2, and M3 is set low); see the data sheet (SLAS681) (SLAS676) for further explanation. This mean that the device restart itself after an error occasion and report through the SD error signal.

SLOU286 –December 2009 TAS5611/13PHD2EVM 7

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