aytwartoofyoroo

RDR-378 - 7 W non-dimmable, non-isolated, step-down LED driver for A19 and A17 lamps

Overview

The document introduces a highly compact and cost-effective step-down power supply designed using the LYTSwitch-0 series device (LYT0006D). The power supply can operate from an input voltage range of 190 VAC to 265 VAC. When using a buck topology, the DC bus voltage is sufficient to support an 85 V output - in a buck converter, the output voltage must always be lower than the input voltage. In addition, the output voltage is also limited by the maximum duty cycle of LYTSwitch-0 (which also requires that the input voltage must be higher than the output voltage). This reference design is not limited to replacement lamp applications; the design layout can be easily modified to fit into an LED tube or ballast power supply.

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:2025-06-20 20:45:36

3.3V to 5V Interconnect Tips
[i=s]This post was last edited by paulhyde on 2014-9-15 08:58[/i] OverviewAs our need for processing speed continues to grow, the size of the transistors used to build microcontrollers continues to de
SimpliciTI-IAR-1.2.0>>Why can't the program in CC430EM be used? ? ? ?
I use the cc430 routine in SimpliciTI-IAR-1.2.0 and the cc430F5137 module to test the program AP_as_Data_Hub. Why can't the AP and ED connect? My ED's sending address is 0xFF, why can't it be sent out
A complete list of filter circuits, save it for future use!
TIVA C Launchpad (EK-LM4F120XL LaunchPad) - GPIO Test
TIVA C Launchpad (EK-LM4F120XL LaunchPad) GPIO Test When watching the video tutorial, [color=#000]Lecturer: Jin Erya mentioned [/color][color=#000]High-speed[/color][color=#000]Port AHB bus, so I want
Is there anyone who has developed a soft PLC?
If you have developed [soft PLC], please leave your contact information. Thank you~
【Uncle T's Library】Texas Instruments University Application Edition Related Albums
[align=left][color=rgb(0, 0, 0)][backcolor=rgb(237, 235, 235)][font=微软雅黑][url=https://download.eeworld.com.cn/detail/tyw/562128][size=3][color=#0066cc]Texas Instruments TI-86 Graphing Calculator Manua

Datasheet More

Circuits More