Allegro MicroSystems A6263
The A6263 is a linear, programmable current regulator providing up to 100 mA from each of 4 outputs to drive arrays of high brightness LEDs. The regulated LED current from each output, accurate to 5%, is set by a single reference resistor.| Part No. | A6263 |
|---|---|
| Datasheet | A6263 Download |
| Manufacturer |  Allegro MicroSystems |
| Description | Protected LED Array Driver |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● AEC-Q100 qualified● Total LED drive current up to 400 mA
● Current shared equally up to 100 mA by up to 4 strings
● Wide input voltage range of 6 to 50 V for start/stop, cold crank, and load dump requirements
● Low dropout voltage
● LED current levels set by single reference resistor
● LED string shorted to GND protection
● Overtemperature protection with optional thermal derating function
● Automotive temperature range
APPLICATIONS
:● Automotive interior and exterior lighting PACKAGE: 8-pin SOICN with exposed thermal pad (suffix LJ) Not to scale
DESCRIPTION
Outputs can be connected in parallel or left unused, as required. Current matching in each string is better than 10% without the use of ballast resistors. Driving LEDs with constant current ensures safe operation with maximum possible light output. The IC provides protection against the following common faults:● LED string shorted to GND
● Single or multiple LED short
● LED string open
● IC pin open/short
● Overtemperature If one LED string is open or shorted to ground, the offending string is disabled, while other LED strings continue to work.
