UC3842AN
feature a trimmed oscillator for precise duty cycle control, a temperature pensated reference, high gain error amplifier, current sensing parator, and a high current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle- by- cycle current limiting, programmable output deadtime, and a latch for single pulse metering.
These devices are available in an 8- pin dual- in- line plastic package as well as the 14- pin plastic surface mount (SOIC- 14). The SOIC- 14 package has separate power and ground pins for the totem pole output stage.
The UCX842A has UYLO thresholds of 16 V (on) and 10 V (off), ideally suited for off- line converters. The UCX843A is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
Features
- Trimmed Oscillator Discharge Current for Precise Duty Cycle
Control
- Current Mode Operation to 500 k Hz
- Automatic Feed...
