Datasheet Summary
UNISONIC TECHNOLOGIES CO., LTD
UC3844/45
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
LINEAR INTEGRATED CIRCUIT
- DESCRIPTION
The UTC UC3844/3845 are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count.
The differences between UC3844 and UC3845 are the under-voltage lockout thresholds. The UC3844 ideally suited to off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of 8.4V(ON) and 7.6V(OFF) for lower voltage applications.
- Features
- Operation output switching frequency up to 500 kHz
- Automatic feed forward pensation
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