UC17133

The UC37131, UC37132 and UC37133 are a family of smart power witches which can drive resistive or inductive loads from the high side or ow side.

The UC37132 is available in 14 pin (DIP), 16 pin (SOIC), or 20 pin (CLCC) ackages and can accommodate both low side (load to VCC) or high side load to GND) configurations. The UC37131 and UC37133 are exclusively or a low side or a high side configuration respectively and both are available n an 8 pin package. Both high side and low side configurations provide igh current switching with low saturation voltages which can drive resistive r inductive loads.

The input to the switch is driven by a low voltage signal, typically 5V. Additionally, C37132 features adjustable hysteresis. The output of the device an switch a load between 8V and 65V. Output current capability is 300mA ontinuous or 700mA peak.

The device UC37131, UC37132 and UC37133also has inherent smart features that allow for programmable urn-on delay in enabling the output following startup. The same capacitor hat specifies the turn-on delay is also used to program a VCC power interruption ime. If VCC drops below a threshold for a time specified by this capacitor, he output is turned off and a new turn-on delay will be re-triggered. imilarly, if high current persists longer than the response delay, the output river will operate in a very low duty cycle mode to protect the IC.