UC3943
Description
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 components. The UTC UC3943 has UVLO thresholds 8.4V (on) and 7.6V(off), ideally suited for off-line converters.
Key Features
- With burstmode for lower standby power * With greenmode for higher light load efficiency * Oscillator frequency guaranteed at 250kHz * Automatic feed forward compensation * 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
