红水杯

DER-409 - 8.5 W PFC TRIAC dimmable non-isolated buck-boost LED driver for A19 lamps

DER-409 - 8.5 W PFC TRIAC Dimmable Non-Isolated Buck-Boost LED Driver for A19 Lamps

Overview

This document describes a cost-effective LED dimming power driver using the LYTSwitch-4 series (LYT4322E) in a highly compact buck-boost topology. The board features a single-sided printed circuit board (PCB) design that can be manufactured with a single process wave soldering and is a cost-effective PCB. Key design goals are high efficiency and small size. This allows the driver to be installed into an A19 sized lamp as close as possible to the production design. DER-409 provides a single 8 W constant current output of 115 mA at a nominal LED voltage of 72 V

Blockdiagram

Design Files

Related Devices

Devices	Class	introduce	Datasheet
LYTSwitch-4		Single-Stage Accurate Primary-Side Constant Current (CC) Controller	Download

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:2024-11-14 23:06:10

Sharing of key points on the use of ADI passive components
Sharing of key points on the use of ADI passive components
Four design considerations for telematics hardware in connected cars
It may surprise you to learn that a technology that has been around for nearly two decades has paved the way for connected cars. ECall is old fashioned by high-tech standards, but it is now mandatory
Wide voltage input USB-C, 5V/3A output adapter reference design
USB-C, DFP, 5V/3A output, 85-265VAC input, adapter, low cost reference designThe UCC28700 and TPS25810 are used to provide isolated 5 V at 3 A over the USB type C interface. The UCC28700 performs prim
When the machine is turned off, the LDO output is normally 3V. Why does the voltage reach 3.5V after the machine is turned on? What is the reason?
When the machine is turned off, the LDO output is normally 3V. Why does the voltage reach 3.5V after the machine is turned on? What is the reason?
【Smart Sports Watch】3. Build Development Environment 2
In the previous post, we set up the development environment and downloaded and ran the first program. In this post we will develop software using freeRtos of RSL10 and use RTT to display PRINT debug d
Ginkgo USB-SPI host mode four data transmission mode timing diagram
[img=248,0]http://www.viewtool.com/bbs/data/attachment/forum/201401/06/1526466h0mzsdyb80m1bym.png[/img] [font=Tahoma, Helvetica, SimSun, sans-serif][ size=14px]Waveform timing:[/size][/font] [img=600,

Datasheet More

Circuits More