A6282: 16-Channel Constant-Current LED Driver

The A6282 device is designed for LED display applications. This CMOS device includes an input shift register, accompanying data latches, and 16 MOS constant current sink drivers.

The CMOS shift registers and latches allow direct interfacing with microprocessor-based systems. With a 3.3 or 5 V logic supply, typical serial data input rates can reach up to 30 MHz. The LED drive current level can be set by a single external resistor, selected by the application designer. A serial data output permits cascading of multiple devices in applications requiring additional drive lines.

The A6282 is available in two 24-terminal packages: QFN (package ES) and TSSOP (LP), which have an exposed thermal pad. Both packages are lead (Pb) free with 100% matte tin leadframe plating.

The package variant A6282EESTR-T is in production but have been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Date of status change: October 29, 2013. Last time buy date: January 31, 2014.

Applications

  • Monocolor, multicolor, or full-color LED display
  • Monocolor, multicolor, or full-color LED signboard
  • Display backlighting
  • Multicolor LED lighting
DATASHEETS
SAMPLE & BUY

Allegro MicroSystems, LLC (Allegro & Sanken Semiconductors) 
Phone: 267-373-9862
Fax: 215-957-5585
Cindy Painter, Email: cpainter@allegromicro.com

If this is not your local representative, find your local sales rep here.

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  • 16 constant-current outputs, up to 50 mA each
  • LED output voltage up to 12 V
  • 3.0 to 5.5 V logic supply range
  • Schmitt trigger inputs for improved noise immunity
  • Power-On Reset (POR), all register bits = 0
  • Low-power CMOS logic and latches
  • High data input rate: 30 MHz
  • Output current accuracy: between channels
    < ±3% and between ICs ±7%, over the full operating temperature range
  • Internal UVLO and thermal shutdown (TSD) circuitry

The A6282 is available in two 24-terminal packages: QFN (package ES) and TSSOP (LP), which have an exposed thermal pad. Both packages are lead (Pb) free with 100% matte tin leadframe plating.

ES-QFN and LP-TSSOP combined

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Product Image Functional Block Diagram

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
A6282EESTR-T 24-lead QFN -40°C to 85°C Yes View Data Last time buy Contact your
local sales rep
Check stock
A6282ELPTR-T 24-lead TSSOP -40°C to 85°C Yes View Data Contact your
local sales rep
Check stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

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