UC3875 Description
The UTC UC3875 is a high performance current mode PWM controller ideally suited for low standby power. The PWM switching frequency is programmable externally at normal operation. Low SOP-8 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.
UC3875 Key Features
- UTC proprietary frequency hopping technology for Improved EMI performance
- Power-saving mode for high light-load and standby efficiency
- Dynamic peak current limiting for constant output power
- Built-in synchronized slope pensation
- OTP,OLP,OVP and VDD clamp for higher security
- ORDERING INFORMATION
- Programmable PWM Frequency
- Gate output voltage clamped at 16V
- Low start-up current
- Cycle-by-cycle Current Limiting
UC3875 Applications
- UTC proprietary frequency hopping technology for Improved EMI performance
- Power-saving mode for high light-load and standby efficiency
- Dynamic peak current limiting for constant output power
- Built-in synchronized slope pensation
- OTP,OLP,OVP and VDD clamp for higher security