• A6276ELW-T SOP-24
A6276ELW-T SOP-24

A6276ELW-T

ALLEGRO MICROSYSTEMS - A6276ELW-T - LED DRIVER, 16BIT SERIAL-INPUT, SMD

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Overview of A6276ELW-T

The A6276ELW-T is a 16-bit serial-input constant-current LED sink driver IC, designed for controlling LED displays and lighting applications. It features a serial interface for easy communication with microcontrollers, making it ideal for implementing color mixing and dynamic lighting effects.

Pinout

(Note: The following pin configuration is a general representation. Refer to the specific datasheet for precise details.)

  • GND: Ground Connection
  • VCC: Positive Power Supply
  • SDI: Serial Data Input
  • LE: Latch Enable
  • CLK: Serial Clock Input
  • GE: Global Output Enable
  • Q0-Q15: Constant-Current Outputs for LED Control

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the A6276ELW-T IC for a visual representation.

Key Features

  • 16-Bit Constant-Current LED Driver: Provides 16 constant-current outputs for controlling individual LEDs or LED segments.
  • Serial Interface: Allows easy daisy-chaining of multiple drivers for controlling large LED arrays.
  • PWM Dimming: Supports pulse-width modulation dimming for adjusting LED brightness levels.
  • Global Output Enable: Enables or disables all LED outputs simultaneously for power-saving control.
  • High Efficiency: The A6276ELW-T offers high efficiency in driving LEDs, reducing power consumption and heat generation.

Note: For detailed technical specifications, please refer to the A6276ELW-T datasheet.

Application

  • LED Displays: Ideal for driving LED displays in signs, scoreboards, and decorative lighting applications.
  • Architectural Lighting: Suitable for creating dynamic lighting effects in architectural and entertainment lighting designs.
  • Color Mixing: Used in applications requiring precise control of RGB LEDs for color mixing and changing effects.

Functionality

The A6276ELW-T is designed to provide accurate current regulation for driving LEDs, enabling smooth dimming and color control in lighting applications.

Usage Guide

  • Power Supply: Connect VCC (Pin 2) to the positive power supply and GND (Pin 1) to ground.
  • Input Control: Use the serial interface (SDI, LE, CLK) to send data to the driver for controlling LED currents.
  • Output Connections: Connect the constant-current outputs (Q0-Q15) to the respective LED anodes or cathodes for brightness control.

Frequently Asked Questions

Q: Can the A6276ELW-T be cascaded for driving larger LED arrays?
A: Yes, multiple A6276ELW-T drivers can be daisy-chained together to control a larger number of LEDs in a cascaded configuration.

Q: Is the A6276ELW-T suitable for automotive lighting applications?
A: The A6276ELW-T can be used in automotive lighting applications with proper thermal management for efficient LED driving in automotive environments.

Equivalent

For similar functionalities, consider these alternatives to the A6276ELW-T:

  • TLC5940:A 16-channel PWM LED driver offering similar features for controlling LED brightness and color.
  • MAX7219CNG:This IC provides LED display driver functions with serial interfacing for versatile LED control applications.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Package Tube Product Status Obsolete
Type Linear Topology Shift Register
Internal Switch(s) Yes Number of Outputs 16
Voltage - Supply (Min) 4.5V Voltage - Supply (Max) 5.5V
Voltage - Output 4V Current - Output / Channel 75.5mA
Frequency 20MHz Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount Package / Case 24-SOIC (0.295", 7.50mm Width)
Supplier Device Package 24-SOIC Base Product Number A6276

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