UC3837 Datasheet (UTC) - LOW COST POWER-SAVING MODE PWM CONTROLLER

UC3837, LOW COST POWER-SAVING MODE PWM CONTROLLER

The UC3837 is a high performance current mode PWM controller ideally suited for low standby power.

Low VDD startup current make the power reliable on startup design and a large value resistor could be used in the startup circuit to minimize the standby power.

At no load condition, the IC operates in

UC3837 Features

* UTC proprietary frequency hopping technology for Improved EMI

* Programming BNO for higher security performance.

* Fixed switch frequency 65kHz

* Power-saving mode for high light-load and standby efficiency

* Gate output voltage clamped at 15V

* Soft Start

* Low