Most voltage regulator ICs have built-in thermal protection. But does anyone know at what junction temperature a device like the LM317 actually begins to shut down?
The safe operating temperature is usually stated as 125°C, but my own measurements of heatsinks suggests the shutdown happens at a much higher junction temperature. Are there any semiconductor designers around here who can answer this?
The safe operating temperature is usually stated as 125°C, but my own measurements of heatsinks suggests the shutdown happens at a much higher junction temperature. Are there any semiconductor designers around here who can answer this?