Offline Switching Power Supply Chip

power supply,chip



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    Zhejiang Jiaxing

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1. Introduction

YTL113D is an offline switching power supply chip with a maximum output power of 24W. Unlike the combined solution of PWM controller and external discrete power MOS, DK124 internally integrates PWM controller, 1000V power tube and primary peak current detection circuit, and adopts patented self-powered technology that can omit auxiliary power supply winding, so it is greatly simplifies peripheral application circuits, reduces the number of originals, circuit size and weight, and is particularly suitable for cost-sensitive flyback switching power supplies.

2.Product Feature

Full voltage input 85V—450V

Built-in 1000V high voltage power tube


Integrated high-voltage starting circuit without external start-up resistor


Built-in 16mS soft starting circuit


Built-in high and low voltage power compensation circuit to keep the maximum output power of high and low voltage consistent


Patented self-powered technology, no external auxiliary winding power supply

Built-in frequency modulation circuit simplifies peripheral EMI design cost


Complete overvoltage, overtemperature, overcurrent, overload, output open / short circuit protection


3.Application Field

Meter power supply

DVD,VCR,STB power supply

Adapter, charger power supply


4.Power range


Input voltage




Maximum output power




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