UC3943 Overview
The UTC UC3943 is specifically designed for off-line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external ponents. The UTC UC3943 has UVLO thresholds 8.4V (on) and 7.6V(off), ideally suited for off-line converters.
UC3943 Key Features
- With burstmode for lower standby power
- With greenmode for higher light load efficiency
- Oscillator frequency guaranteed at 250kHz
- Automatic feed forward pensation
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with undervoltage lockout
- High current totem pole output
- Undervoltage lockout with hysteresis
- Low startup and operating current
- ORDERING INFORMATION
