Allegro MicroSystems A6285
The A6285 is designed for LED display applications. This BiCMOS device includes an On/Off shift register, a Dot Correction (DC) shift register, accompanying data latches, and 16 MOS constant-current sink drivers with active pull-ups that can be enabled or disabled as required by the application. The CMOS shift registers and latches allow direct interfacing with microprocessor-based systems.| Part No. | A6285 |
|---|---|
| Datasheet | A6285 Download |
| Manufacturer |  Allegro MicroSystems |
| Description | 16-Channel Constant-Current Latched LED Driver |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● 3.0 to 5.5 V logic supply range● Schmitt trigger inputs for improved noise immunity
● Power-On Reset (POR)
● Up to 80 mA constant-current sinking outputs
● LED open circuit detection (LOD)
● Dot correction (DC) for adjusting LED light intensity on each channel with 7-bit resolution
● Low-power CMOS logic and latches
● High data input rate up to 30 MHz
● Active output pull-ups with enable/disable
● 20 ns typical staggering delay between outputs
● Internal UVLO and thermal shutdown (TSD) circuitry
● Fault output flags for an LED open circuit (LOD) or a thermal shutdown (TSD) condition Package: 32 Contact QFN (suffix ET) 5 mm × 5 mm 0.90 mm nominal overall height Not to scale
DESCRIPTION
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 CMOS serial data output permits cascading of multiple devices in applications requiring additional drive lines.
