UTC1237 Datasheet Text
UTC1237
LINEAR INTEGRATED CIRCUIT
PROTECTOR IC FOR STEREO POWER AMPLIFIER
DESCRIPTION
UTC1237 is a monolithic integrated designed for protecting stero power amplifiers and loudsperkers.
Features
- Work stably within a wide power suppy voltage range(vcc=25 to 60V).
- Contain a relay driver(Max I 6=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.)
- Need only single power supply
- Both positive and negative output offset can be detected through the same pin.(output offset detection through pin 2)
- AC voltage can be detected.(for AC-power OFF mute through pin 4)
- The time delay from amplifier power ON to relay ON can be freely set by selecting external ponents.(For AC-power-ON mute through pin 7)
- The moment that amplifier-power is turned off, it can make relay broken OFF and then loudsperker disconnected from amplifier to prevent a shock off noise.
SIP-8
YOUWANG ELECTRONICS CO.LTD
1
2009.03.23 V1.0
UTC1237
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
YOUWANG ELECTRONICS CO.LTD
2
2009.03.23 V1.0
UTC1237
Characteristic
Power Supply Voltage Allowable Power Dissipation Operational Temperature Strong Temperature Pin 6 Maximum Current Pin 4 Maximum Voltage Pin 8 Maximum Voltage Pin 1 Maximum Current Pin 2 Maximum Current Pin 7 Maximum Voltage
LINEAR INTEGRATED CIRCUIT
Symbol
Vcc PD Topt Tstg I6max V4max V8max I1ax I2max...