Diodes Incorporated
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AL5809Q

Automotive Compliant Two Terminal Constant Current LED Driver

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Description

The AL5809Q is a constant current linear LED driver and provides a cost-effective two pin solution. It offers an excellent temperature stability 20 ppm/°C and the current accuracy ±3% regulated over a wide voltage range. The AL5809 simplifies the design for linear LED drivers allowing it to be designed as a high or low-side constant current regulator without any external components.

The AL5809Q turns on immediately and its 60V Voltage rating between Input and Output pins swing enables it drive long LED chains.

Feature(s)

  • Robust Power Package up to 1.5W for PowerDI123
  • -40°C to +125°C Temperature Range
  • ±3% LED Current Tolerance
  • 15mA, 20mA, 25mA, 30mA, 40mA, 50mA, 60mA, 90mA, 100mA, 120mA, and 150mA Constant Current Options
  • Constant Current with Low Temperature Drift and High Power Supply Rejection Ratio
  • 2.5V to 60V Operating Voltage between Two Terminals

Application(s)

  • Automotive Interior Lamps
  • Automotive Instrument Illumination

Product Specifications

Product Parameters

AEC Qualified Yes
Compliance (Only Automotive supports PPAP) Automotive
Topology Linear LED Driver
Minimum Supply Voltage (V) 2.5 V
Maximum Supply Voltage (V) 60 V
Maximum VOUT (V) 60 V
Number of Channels 1
LED Current Sense Voltage (mV) N/A mV
Output Current (mA) Fixed mA
Channel Max. Output Current (mA) 10 to 150 mA
Accuracy (%) 5 %
Dimming Ext PWM
Temperature Range (°C) -40 to 125 °C

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TN1.pdf

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