EVB_RT7306GS: 46V @ 920mA, 90 ~ 300 VAC


The EVB_RT7306GS is a constant current LED driver evaluation board with active power factor correction. It supports high power factor across a wide range of line voltages, and it drivers the converter in the Quasi-resonant mode to achieve high efficiency. By using primary side regulation(PSR), the RT7306 controls the output current accurately without a shunt regulator and an opto-coupler at the secondary side.

RT7306 is compatible with analog dimming. The output current can be modulated by the DIM pin. An in-house design high voltage(HV) start-up device is integrated in the RT7306 to minimize the power loss and shorten the start-up time.

The RT7306 embeds comprehensive protection functions for robust designs, including LED open-circuit protection, LED short-circuit protection, output diode short-circuit protection, VDD under-voltage lockout(UVLO), VDD over-voltage protection(OVP), over-temperature protection, and cycle-by-cycle current limitation.


Manufacturer Richtek USA Inc.
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Part Number EVB_RT7306GS-ND
Eval Board Supplier Richtek USA Inc.
Eval Board -
AC Voltage Universal
Outputs and Type 1 Non-Isolated
Current Out 920 mA
Voltage Out (Max) 46 V
Efficiency @ Conditions >88%, 90 ~ 300 VAC in, 46V @ 920 mA
Features Current Limit (Adj. or Fixed)
Dimming Control
Open Circuit Protection
Over Voltage Protection
Short Circuit Protection
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency - Not Given
Component Count + Extras 43 + 2
Design Author Richtek USA Inc.
Application / Target Market LED Commercial Lighting
LED Home Lighting
LED Signage
LED Street Lighting
Voltage In 90 ~ 300 VAC
Power Factor >0.9
Standard(s) EN55015 B conducted EMI
IEC 61000-3-2 Class C
Main I.C. Base Part RT7306
Date Created By Author 2016-11
Date Added To Library 2018-06

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