Audio Modules & Development Tools HI PERF MULTI PWM

TAS5508-5142K7EVM

Manufacturer Part NumberTAS5508-5142K7EVM
DescriptionAudio Modules & Development Tools HI PERF MULTI PWM
ManufacturerTexas Instruments
TAS5508-5142K7EVM datasheet
 


Specifications of TAS5508-5142K7EVM

Description/functionAudio AmplifiersProductAudio Modules
For Use With/related ProductsTAS5508B, TAS5142Lead Free Status / RoHS StatusLead free / RoHS Compliant
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This chapter describes the short-circuit protection and fault-reporting circuitry of the
TAS5142 device.
3.1
Short-Circuit Protection and Fault-Reporting Circuitry
The TAS5142 is a self-protecting device that provides fault reporting (including high-temperature
protection and short-circuit protection). The TAS5142 is configured in back-end auto-recovery mode and,
therefore, resets automatically after all errors (M1, M2, and M3 are set low). This means that the device
will restart itself after a error occasion and report through the SD error signal.
3.2
Fault Reporting
The OTW and SD outputs from the TAS5142 indicate fault conditions. Please refer to the TAS5142 Data
Manual for a description of these pins.
Table 3-1. TAS5142 Warning/Error Signal Decoding
OTW
SD
0
0
0
1
1
0
1
1
The temperature warning signals at the TAS5508-5142K7EVM board are wired-OR to one temperature
warning signal (OTW – pin 22 in control interface connector). Shutdown signals are wired-OR into one
shutdown signal (SD – pin 20 in control interface connector).
The shutdown signals, together with the temperature warning signal, give chip state information as
described in
Table
3-1. Device fault-reporting outputs are open-drain outputs.
SLEU071 – June 2006
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DEVICE CONDITION
High-temperature error and/or high-current error
High-temperature warning
Undervoltage lockout or high-current error
Normal operation, no errors/warnings
Chapter 3
SLEU071 – June 2006
Protection
Protection
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