uPC1237 Stereo Protection I.C (SIP-8) – THR

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