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Diodes Incorporated AL5958QEV2-EMC LED Driver Evaluation Board

Diodes Inc. AL5958QEV2-EMC LED Driver Evaluation Board is designed for the AL5958Q RGB LED driver, a 48-channel, constant-current LED driver controlled via an SPI-compatible serial interface. The Diodes Inc. AL5958QEV2-EMC characterizes the electrical performance and functional behavior of the AL5958Q device. The evaluation enables verification of current regulation, grayscale dimming, scanning control, and diagnostic features. The board supports MCU-based communication for generating high-clarity, high-brightness LED matrix effects under controlled test conditions.

Features

  • AEC-Q100 Grade 1 qualification
  • 2x separated power supplies - VR and VGB
    • 2.8V to 5V VR supply range
    • 3V to 5V VGB supply range
  • 48x output current sources
    • 0.5mA to 20mA constant current output range
    • Current setting by 3x external resisters
    • 6-bit global current control for each color group
    • ±1.5% typical LED current accuracy/matching between channels
    • Output staggered delay
  • 16x built-in NMOS scan switches
    • For static and dynamic systems from 0 scan to 1/32 scan
    • Flexible scan sequence
  • Grayscale PWM dimming
    • 16-bit PWM dimming resolution
    • High refresh rate achieved by Multiplex Pulse Density Modulation (M-PDM) technology
    • Selectable single or double-edge trigger grayscale clock for EMI reduction
  • Diagnosis and protections
    • LED open/short
    • Grayscale clock watchdog
    • Undervoltage Lockout (UVLO)
  • Built-in intelligent matrix display functions
    • Automatic black frame insertion
    • Last scan and next scan line ghost image abatement
    • Low brightness uniformity compensation
    • Short LED caterpillar and open LED fail line abatement
  • Daisy-chained capability
  • Sleep mode to save power
  • 4.34mA output current
  • 100mm x 125mm x 20mm in size
  • RoHS-compliant

Applications

  • Central information displays
  • Cluster displays
  • Head-up displays
  • Grill lights
  • Body mini-LED panels
  • Interior/rear lights

Resources

Interface Diagram

Mechanical Drawing - Diodes Incorporated AL5958QEV2-EMC LED Driver Evaluation Board

Hardware Connections

Mechanical Drawing - Diodes Incorporated AL5958QEV2-EMC LED Driver Evaluation Board

Related LED Driver

Diodes Incorporated AL5958Q 48-Channel Matrix LED Driver

Supports any dynamic applications from no scan to 32 scans when two or more devices are connected.

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Publicado: 2026-05-19 | Actualizado: 2026-05-19