A6282: 16-Channel Constant-Current LED Driver

Description

Discontinued
This part is discontinued. Samples are no longer available. 
Date of status change: May 6, 2016.
Recommended Substitutions: For existing customer transition, and for new customers or new applications, contact Allegro Sales.

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.

Applications

  • Monocolor, multicolor, or full-color LED display
  • Monocolor, multicolor, or full-color LED signboard
  • Display backlighting
  • Multicolor LED lighting

Top Features

  • 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

Part Number Specifications and Availability

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

Packaging

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