LD5766EHigh Voltage Quasi-Resonant PWM Flyback Controller with BNO Function
The LD5766E is a green mode PWM IC built-in with brown-in/ out functions in a SOP-8 package. It minimizes the component counts, circuit space, and reduces the overall material cost for the power applications.
The LD5766E features HV start, green-mode power-saving operation, soft-start functions to minimize the power loss and enhance the system performance.
With complete protection in it, as OPP (Over Power Protection), OVP (Over Voltage Protection), fast OSCP (Output Short Circuit Protection) and brown-in/out protection, LD5766E prevents the circuit from being damaged under abnormal conditions.
Furthermore, the QR jitter function could reduce the noise level and thus helps the power circuit designers to easily deal with the EMI filter by spending minimum amount of component cost and developing time.
Features
- High-Voltage (700V) Startup Circuit
- Secondary-side feedback control with quasi-resonant operation
- Built- in X-Cap Discharge on HV pin
- 227kHz maximum switching frequency
- OVP (Over Voltage Protection) on VCC
- OCP/OPP/OSCP Protections
- Smart stabilization system and high efficiency for USB-PD App
- Adj. CS_OTP (Over Temperature Protection)
- +250mA/-500mA Driving Capability
Applications
- Switching AC/DC Adaptor and Battery Charger
- Open Frame Switching Power Supply
