Thermal shutdown circuit is an electronic protection component that automatically disables a line driver/transceiver when its temperature exceeds a safe threshold to prevent thermal damage.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Accuracy | ±5°C | |
| Hysteresis | 10-30°C | |
| Response Time | <1ms | |
| Operating Voltage | 3.3V or 5V | |
| Shutdown Threshold | 150-175°C | |
| Current Consumption | <100μA |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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Thermal shutdown activates when the junction temperature exceeds the circuit's programmed threshold, typically due to excessive ambient temperature, high current loads, poor ventilation, or sustained short-circuit conditions.
Most circuits include hysteresis; after shutdown, the device remains disabled until temperature drops below the recovery threshold (typically 10-30°C below shutdown point), then automatically resumes normal operation.
Some devices include programmable disable features, but this is not recommended as it removes critical protection and may void safety certifications.
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