R2A20134SP is a LED lighting controller IC. Control method is selectable for each system demand, fixed frequency or zero current detection mode. High accuracy LED current feed-back system makes more efficient LED performance. Critical Conduction Mode PFC control realizes high power factor and zero current switching. And Peak Current Mode makes it possible to reduce external parts and realize low system cost.


  • Absolute Maximum Ratings Supply voltage Vcc: 24 V Junction temperature Tj: –40 to +150°C
  • Electrical characteristics UVLO operation start voltage VH: 12 V ± 0.8 V UVLO operation shutdown voltage VL: 9.2 V ± 0.7 V UVLO hysteresis voltage Hysuvl: 2.8 V ± 0.7 V
  • Functions Selectable for each targeted system, 1. Zero current detection mode (When Rrt is connected by GND) 2. Fixed frequency mode (When Rrt is connected by Vref) Adjustable for Switching frequency (When Rrt is connected by Vref) Overcurrent protection Package lineup: Pb-free SOP-8 (JEDEC)


Title language Type Format File Size Date
Datasheets & Errata
star R2A20134SP Data Sheet 日本語 Datasheet PDF 269 KB
Application Notes & White Papers
R2A20134EVB-TINW R2A20134 Evaluation Board for LED Tube Lamp 日本語 Application Note PDF 520 KB
R2A20134EVB-NNWE Application Note R2A20134 Evaluation Board 日本語 Application Note PDF 538 KB
R2A20135EVB-ND2 R2A20135 Evaluation Board 日本語 Application Note PDF 500 KB
R2A20134ASP Application Note 日本語 Application Note PDF 79 KB
The Art of Lighting Flyer PDF 2.22 MB