Preliminary Data Sheet
R2A20135SP
R03DS0061EJ0300
Rev.3.00
Sep 25, 2015
LED Lighting Power Controller
Description
R2A20135 is LED lighting controller IC with dimming function.
High accuracy LED current feed-back system makes more efficient LED performance.
With non-Isolation step-down control makes it possible to reduce external parts and realize high power factor and
efficiency. Moreover, this IC builds in the dimming function and can control many types dimming mode such as Triac,
PWM, and DC dimming.
Switching mode can chosen Zero Current detect Mode or Fixed Frequency Mode according to the required features. By
the Constant On Time control, both modes have power factor correct function.
Zero Current detect Mode is better performance for noise immunity, and Fixed Frequency Mode is for power factor
correction and THD.
Features
• Absolute Maximum Ratings
⎯ Supply voltage Vcc: 24 V
⎯ Junction temperature Tj: –40 to +150°C
• Electrical characteristics
⎯ UVLO operating start voltage VH: 12 V ± 0.8 V
⎯ UVLO operating shutdown voltage VL: 9.2 V ± 0.7 V
⎯ UVLO hysteresis voltage Hysuvl: 2.8 V ± 0.7 V
• Functions
⎯ Dimming function (Triac, PWM, DC dimming)
⎯ Zero current detection mode (when Rrt is OPEN)
⎯ Fixed frequency mode (when Rrt is connected by GND)
⎯ Adjustable switching frequency (when Rrt is connected by GND)
⎯ Package lineup: Pb-free SOP-8 (JEDEC)
Ordering Information
Part No.
R2A20135SP#W5
Package Name
—
R03DS0061EJ0300 Rev.3.00
Sep 25, 2015
Package Code
PRSP0008DJ-A
Package
Abbreviation
SP
Taping Abbreviation
(Quantity)
W (2,500 pcs/reel)
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