|
High Voltage Green-Mode PWM Controller with Over Temperature Protection
The LD7750R integrates several functions of protections, and EMI-improved solution in a SOP-7, SOP-8 or DIP-8 package to minimize the component counts and the circuit space.
The device provides functions of low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation.
The LD7750R features built-in auto-recovery function for OVP on Vcc pin and OLP.
Features
-
High-Voltage (500V) Startup Circuit
-
Current Mode Control
-
Green Mode Control
-
UVLO (Under Voltage Lockout)
-
LEB (Leading-Edge Blanking) on CS Pin
-
Internal Frequency Swapping
-
Internal Slope Compensation
-
Internal Over Current Protection
-
OVP (Over Voltage Protection) on Vcc
-
OLP (Over Load Protection)
-
External OTP through a NTC
-
500mA Driving Capability
Application
-
Switching AC/DC Adaptor and Battery Charger
-
Open Frame Switching Power Supply
-
LCD Monitor/TV Power
|