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APEK6211GLJ-01-MH-DK: 0.3 ~ 3A @ 48V Max, 6 ~ 48V in

Summary

The A6211 is a single IC switching regulator that provides constant-current output to drive high-power LEDs. It integrates a high-side N-channel DMOS switch for DC-to-DC step- down (buck) conversion. The A6211 EVB (evaluation board) accepts input voltage from 6V to 48V to drive a single LED string. LED current can be from several hundred mA up to 3A, selected by jumper combination on the EVB. Switching frequency is fixed at 1MHz for the EVB, but it can be easily changed by changing a resistor (see data sheet for details).

For LED current regulation, the minimum input voltage should be at least 20% higher than the LED string’s operating voltage.

Specifications

Manufacturer Allegro MicroSystems
Category Lighting
Sub-Category LED Drivers - DC In
Eval Board Part Number 620-1478-ND
Eval Board Supplier Allegro MicroSystems
Eval Board Normally In Stock
Voltage In 6 ~ 48 V
Topology Step Down
Current Out 300 mA
500 mA
1 A
1.5 A
2 A
2.5 A
3 A
Voltage Out (Max) 4.8 ~ 38.2 V (6 ~ 48V in)
Outputs and Type 1 Non-Isolated
Efficiency @ Conditions >90%, 24V in, 15V @ 0.3 ~ 2.7 A
>87%, 12V in, 5.5V @ 0.3 ~ 1.9 A
>81%, 12V in, 3.5V @ 0.4 ~ 2.5 A
Features Current Limit (Adj. or Fixed)
Dimming Control
Open Circuit Protection
Short Circuit Protection
Shutdown, Enable, Standby
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 1 MHz
Component Count + Extras 12 + 4
Design Author Allegro Microsystems
Application / Target Market LED Commercial Lighting
LED Home Lighting
LED Signage
Printer, Plotter
Main I.C. Base Part A6211
Date Created By Author 2012-01
Date Added To Library 2013-09

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