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	Lighting: LED Commercial Lighting Lighting: LED Home Lighting Lighting: LED Signage Printer, Plotter
Main I.C. Base Part	A6211
Date Created By Author	2012-01
Date Added To Library	2013-09