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LD5520 Datasheet Quasi-resonant Pwm Controller

Manufacturer: Leadtrend

Overview: LD5520 05/17/2016 Quasi-Resonant PWM Controller with Frequency Swapping and Integrated Protections REV:.

General Description

The LD5520 is built with several functions, protection and EMI-improved solution in a tiny package.

It takes less ponents counts or circuit space, especially ideal for those total solutions of low cost.

The implemented functions include low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope pensation.

Key Features

  • more protections like OLP (Over Load Protection), FB pin OVP (FB pin Over Voltage Protection) and OVP (Over Voltage Protection) to prevent circuit damage occurred under abnormal conditions. Furthermore, the adjustable frequency swapping function is to reduce the noise level and thus helps the power circuit designers to easily deal with the EMI filter design by spending minimum amount of component cost and developing time. Features.
  • Secondary -side Feedback Control with qua.

More Datasheets from Leadtrend

Part Number Description
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LD5523T Multi-Mode PWM Controller of Flyback
LD5535A1 Green-Mode PWM Controller
LD5535E1 Green-Mode PWM Controller
LD5537B1 Green-Mode PWM Controller
LD5537E1 Green-Mode PWM Controller
LD5537G1 Green-Mode PWM Controller

LD5520 Distributor