UC3973
Overview
The UC3973 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.
- UTC proprietary frequency hopping technology for Improved EMI performance. * Power-saving mode for high light-load and standby efficiency * Soft Start * Dynamic peak current limiting for constant output power * Built-in synchronized slope compensation * OLP,OVP and VDD clamp for higher security
- Programming OTP for higher security * Fixed switch frequency 65kHz * Gate output voltage clamped at 15V * Low start-up current * Cycle-by-cycle Current Li
