AL5811:Linear LED Drivers

Part NumberData SheetSPICE ModelQualified to AECQ10xPPAP CapableTopologyMinimum Supply Voltage (V)Maximum Supply Voltage (V)Maximum VOUT (V)Number of ChannelsLED Current Sense Voltage (mV)OutputCurrent (mA)LED Current (mA)Accuracy (%)Frequency (kHz)Efficiency (%)DimmingTemperature Range (°C)
AL5811AL5811.pdf-NoNoLinear Driver3.560601-75756--Ext-40 to +125
Description

The AL5811 is an adjustable Linear °C driver offering excellent temperature stability and output handling capability. The AL5811 simplifies the design of linear and isolated or non-isolated °C drivers by setting the °C current with standard value resistors. The AL5811 has an open drain output that can swing from 1V up to 60V enabling it drive long °C chains. Its low 0.5V RSET pin is outside of the °C current path and so accuracy is maintained while minimizing the required overheads to regulate the °C current. This reduces its power dissipation when compared to traditional linear °C drivers. This makes it ideal for driving °Cs up to 75mA (commonly referred to as 1/4W °Cs). Longer °C chains can be driven by tapping VCC from the chain, where the chain voltage may exceed 60V. The AL5811 is available in the exposed pad MSOP-8EP and U-DFN3030-6 packages.

Application
  • Isolated Offline LED Converters
  • Linear LED Driver
  • LED Signs
  • Instrumentation Illumination
  • Automotive Interior Lamps
Features
  • Low Reference Voltage (VRSET = 0.5V)
  • -40°C to +125°C Temperature Range
  • ±6% Typical °C Current Tolerance
  • Low Temperature Drift
  • 1V to 60V Open-Drain Output
  • High Power Supply Rejection
  • MSOP-8EP and U-DFN3030-6: - Available in “Green” Molding Compound (No Br, Sb)
Ordering Information
  • AL5811EV1
  • AL5811EV2
  • AL5811FF-7
  • AL5811MP-13
U-DFN3030-6
MSOP-8EP
AL5811.pdf AL5811
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