High Voltage PWM Driver with BNI/BNO and RFI X-Capacitor Discharge Function
LD961A is a PWM driver with built-in brown-in/ (BNI/BNO) and RFI X-capacitor discharge funtion which can minimize the component counts, circuit space
and reduce the overall cost of open frame power applications.
The IC provides HV start, RFI X-capacitor discharge, internal slope compensation and soft-start functions which can minimum the power loss and improve
the system performance.
With the complete protection modes, like OLP (over load protection), OVP (over voltage protection), fast SCP (short circuit protection)
and brown-in/out protection, this chip prevents the circuit from being damaged in abnormal conditions.
Furthermore, the LD961A features frequency trembling and soft driving function to minimize the noise and improve EMI.
The IC is available in SMD. LD961A ?? in SPAK6L package.
FEATURES
▲ Integrated 650V MOSFET
▲ High voltage (650V) startup circuit
▲ Fixed frequency 65kHz operation
▲ Built-in brown-in/out function on HV pin
▲ Built-in RFI X-capacitor discharge on HV pin
▲ Frequency trembling for EMI improve
▲ Internal slope compensation
▲ Internal OCP (over current protection) compensation
▲ Internal OTP (over temperature protection)
▲ Soft start function
▲ OVP (over voltage protection) on VCC
▲ OLP (over load protection)
▲ SCP (short circuit protection)
APPLICATIONS
▲ Open frame switching power supply
▲ TV power system
Datasheet 
