Editor Version ×

1.Easy to use and quick to get started

2.The process supports design scales of 300 devices or 1000 pads

3.Supports simple circuit simulation

4.For students, teachers, creators


1.Brand new interactions and interfaces

2.Smooth support for design sizes of over 30,000 devices or 100,000 pads

3.More rigorous design constraints, more standardized processes

4.For enterprises, more professional users

Std EditionLedDriver


Published Time:2018-11-15 02:23:31
  • 581
  • 0
  • 1

This is a simple led driver based on PT4115. It is made as a quick solution for devices with constant voltage outputs to turn them to the device with constant current outputs.

The input voltage between V+ and V- can be 7 - 30V. Output current is 1A but can be adjusted by replacing R1 using I = 0.1 / R1. For more information see the datasheet at https://people.xiph.org/~xiphmont/thinkpad/PT4115E.pdf.

You can keep the DIM input open. In this case the output will always be enabled.

Note: The device has not been tested yet. Any comment is appreciated.

ID Name Designator Footprint Quantity BOM_Supplier BOM_Manufacturer BOM_Manufacturer Part BOM_Supplier Part
1 47uF C1 CAP-D6.3XH5.5 1 LCSC ROQANG RVT1V470M0605 C72522
2 47uH L1 SLF4532 1 LCSC Sunltech SLF0403-470KTT C182152
3 0.1Ω R1 1206 1 LCSC UniOhm 1206W4F100LT5E C25334
4 DS14W D1 SOD-123FL 1 LCSC Jingdao DS14W C108809
5 PT4115EE89E U1 SOT-89-5 1 LCSC PowTech PT4115EE89E C126161
6 Header-Male-2.54_1x1 P1,P2,P3,P4,P5 HDR-1X1/2.54 5 LCSC ReliaPro Header-Male-2.54_1x1 C81276


Project Attachments


周一至周五 9:00~18:00
  • 0755 - 2382 4495
  • 153 6159 2675


周一至周五 9:00~18:00
  • 立创EDA微信号


  • QQ交流群


  • 立创EDA公众号