Design contains obsolete parts

DER-387: 135mA @ 38V Max, 90 ~ 132VAC in

Summary

This document describes a cost effective power supply utilizing the LYTSwitch™-0 family (LYT0006D) in a highly compact buck topology.

This power supply operates over an input voltage range of 90 VAC to 132 VAC. The DC bus voltage is high enough to support a 38 V output when using a buck topology. In a buck converter the output voltage must always be lower than the input voltage. The output voltage is also limited by the maximum duty cycle of the LYTSwitch-0, which also requires the input voltage to be larger than the output voltage.

Specifications

Manufacturer Power Integrations
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Board not Stocked
AC Voltage 115 V
Outputs and Type 1 Non-Isolated
Current Out 135 mA
Voltage Out (Max) 38 V
Efficiency @ Conditions >85%, 90 ~ 132 VAC, 38 V LED load
Features Current Limit (Adj. or Fixed)
Frequency Jitter for EMI
Open Circuit Protection
Short Circuit Protection
Thermal Protection
Switching Frequency 66 kHz
Component Count + Extras 16 + 0
Design Author Power Integrations
Application / Target Market Lighting: LED Commercial Lighting
Lighting: LED Home Lighting
Voltage In 90 ~ 132 VAC
Power Factor 0.7 @ 120 VAC
Standard(s) EN55015 B conducted EMI
IEC 1000-4-5
Main I.C. Base Part LYT0006
Date Created By Author 2013-09
Date Added To Library 2014-09