DESCRIPTION
UTC UPC1237 is a semiconductor integrated circuit designed for protecting stereo power amplifiers and loudspeakers.

„  FEATURES
* Wide supply voltage range of 25V~60V. 
* Contain a relay driver. (Max. I6=80mA)
* Work as either latching function or automatic resetting function by using pin 3. (In both overload detection and output offset detection, either function can be selected.)
* Single power supply.
* Built-in output offset detection function. Both positive and negative output offset can be detected through pin2.
* AC voltage can be detected.
* Time delay function. The time delay form amplifier power ON to relay ON can be freely set by selecting external components.
* The moment that amplifier-power is turned off, it can make relay broken OFF and then loudspeaker disconnected for amplifier to prevent a shock off noise.