smallembedded

DER-431 - 16.2W non-isolated tapped buck, universal input LED driver for LED tubes

DER-431 - 16.2 W Non-Isolated Tapped Buck, Universal Input LED Driver for LED Tubes

Overview

This document describes a non-isolated, tapped buck, universal input 16 W LED power supply configured for use as a lamp driver. The design utilizes the LYT4214E IC from the LYTSwitch-4 family, enabling the design to achieve high efficiency, high power factor (PF), low THD and precise regulation. The driver is designed to provide a nominal LED string voltage of 36 V, 450 mA over an input voltage range of 95 VAC to 265 VAC (50 Hz typical). This document contains LED driver specifications, schematics, PCB details, bill of materials, transformer documentation, and typical performance characteristics.

Blockdiagram

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-23 04:07:58

LOTO Practice [Dry Goods] 2- Quick Application of Voltage Comparator
Without further ado, here are the pictures:I recently went on a business trip to a customer's site to debug equipment. The scene is shown above. The technical part I was responsible for included a fun
GD32E230C Test 2: I2C and EEPROM
There is an EEPROM on the GD32E230C development board, which is read and written through the I2C connection. The relevant files are mainly i2c.c and at24cxx.c and the corresponding header files. Copy
Fresh graduates looking for microcontroller jobs are welcome to join the industry regardless of salary
My name is You Binbin, 21 years old, male. I graduated from Electronics and Information Engineering, I am very familiar with the 51 single-chip microcomputer core, and I have two months of training ex
Ask a question
As shown in the figure, vcc=6v is the power supply, which provides 5v working power to the IC. How to determine the resistance value of resistor R?
msp430f5529
Anyone who has used stm32 to drive nrf905 can help me
This is the routine I wrote. There is no response when using 32 and 51 communication (I haven't tried 32 and 32 yet). I would be grateful if any expert can help me correct it.

Datasheet More

Circuits More