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600mA Buck Regulator LED Driver for 20W High Power LED - A6211[126]

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Welcome to use LED driver series by Sure Electronics. This product integrate a A6211 chip by Macroblock– a high efficiency, constant current and step-down DC/DC converter. Featuring under voltage lock out (UVLO),over temperature protection, LED open-circuited protection and LED short-circuited protection, A6211 makes the drivers’ application safer. Additionally, to ensure the system reliability, the A6211 builds thermal protection(TP) function inside. This function protects IC from overheating in various applications. Thus LED drivers shall serve for longer time.

This driver features small size, high efficiency, stability, long service time and easy installation. LED dimming can be controlled via an extra pulse width modulation (PWM) through EN pin.

  • TypeLED Driver
  • StyleLED Driver
  • Output ChannelSingle
  • Minimized size, high efficiency
  • Constant current output, stable LED lighting
  • Input voltage: 9V-48V
  • Full protection: Thermal/UVLO(Under Voltage Lock Out)/Start-Up/LED Open-/Short- Circuit
  • Easy installation and long service life
The typical parameters are listed in the table below.Tested @ Vin=24V, 4 Luxeon White LEDs connected in series, temp 18℃ (unless noted otherwise)
ParametersTest ConditionMin.Typ.Max.Unit
Supply Voltage-9-48V
Supply Current (no load)Vin=9V~48V-25mA
Output CurrentIout600mA
EfficiencyVin=24V, 4LEDs ,-96-%
Input Voltage*(EN)High Potential-3.5-VinV
Low Potential--0.5-0.5V
Minimum Turn-on Time*-110150ns
Minimum Closing Time*-110150ns
Over Temperature Protection*-145165175
Over Temperature Protection Hysteretic State*-202540
Note:  * from Data Sheet of A6211 chip. Please refer to the relevant documents for the details.


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