UC3837 Overview
The UC3837 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. At no load condition, the IC operates in power-saving mode for lower standby power, decreasing frequency for Higher conversion efficiency at light load...
UC3837 Key Features
- UTC proprietary frequency hopping technology for Improved EMI
- Programming BNO for higher security
- Fixed switch frequency 65kHz
- Power-saving mode for high light-load and standby efficiency
- Gate output voltage clamped at 15V
- Soft Start
- Low start-up current
- Dynamic peak current limiting for constant output power
- Cycle-by-cycle Current Limiting
- Built-in synchronized slope pensation