WS2283
Description
WS2283 is a high performance current mode PWM controller, optimized for low power switch equipment. For lower the standby power and higher RoHS compliant, the IC offers a Burst Mode control feature and ultra-low start-up current and operating current, that is, at the condition of no load or light load, WS2283 can reduce the switch frequency linearly which minimize the switching power loss; the ultra-low startup current and operating current make a reliable power for startup design, and also large resistor can be used in the startup circuit to improve switching efficiency.
Key Features
- Burst Mode Control
- 5uA ultra-low startup current
- 1.8mA Low operating current
- Built-in Leading-edge blanking
- Built-in synchronous slope compensation circuit
- Built-in Soft-Start
- 65kHz fixed switch frequency
- Cycle by cycle over current protection (OCP)
- VCC over voltage clamp & under voltage lockout( UVLO)
- Over load protection (OLP)
