UC3838 Overview
The UTC UC3838 provides a CCM switching mixed mode operation for better efficiency performance. The operation mode stays at CCM at heavy load, and switch to power-saving mode at light load. The UTC UC3838 is a high performance current mode PWM controller ideally suited for low standby power.
UC3838 Key Features
- Proprietary frequency hopping for Improved EMI performance
- Cycle-by-cycle current limiting
- CCM Power-saving mode Switching Operation
- Fixed switch frequency 65kHz TYP
- Dynamic peak current limiting for constant output power
- Built-in synchronized slope pensation
- Gate output voltage clamped at 17V
- Adjustable DC output OVP/OTP
- OLP/VCC OVP/Internal OTP (automatic recovery)
- Internal Soft Start