Texas Instruments TAS5504-5142V4 Evaluation Module TAS5504-5142V4EVM TAS5504-5142V4EVM Datenbogen
Produktcode
TAS5504-5142V4EVM
www.ti.com
3.1
Short-Circuit Protection and Fault-Reporting Circuitry
3.2
Fault Reporting
Short-Circuit Protection and Fault-Reporting Circuitry
The TAS5142 is a self-protecting device that provides device 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. This means that the device restarts itself after an error
occasion and reports shortly through the SD signal.
protection and short-circuit protection). The TAS5142 is configured in back-end auto-recovery mode and
therefore, resets automatically after all errors. This means that the device restarts itself after an error
occasion and reports shortly through the SD signal.
The OTW and SD outputs from the TAS5142 indicate fault conditions. Please refer to the TAS5142 Data
Manual for a description of these pins.
Manual for a description of these pins.
Table 3-1. TAS5152 Warning/Error Signal Decoding
OTW
SD
DEVICE CONDITION
0
0
High-temperature error and/or high-current error
0
1
High-temperature warning
1
0
Undervoltage lockout or high-current error
1
1
Normal operation, no errors/warnings
The shutdown signals, together with the temperature warning signal, gives chip state information as
described in the Table 3-1. Device fault-reporting outputs are open-drain outputs.
described in the Table 3-1. Device fault-reporting outputs are open-drain outputs.
18
Protection
SLEU075 – June 2006 – Revised June 2006