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AL8861 40 V 1.5 A Buck LED Driver

Diodes has the solution for a simple and low BOM cost 40 V LED driver

Image of Diodes' AL8861 40 V 1.5 A Buck LED DriverDiodes' AL8861 hysteretic mode DC-DC buck LED driver operates from input supplies between 4.5 V and 40 V. Depending on the input voltage and external components, the AL8861 will provide up to 40 W output power. It integrates a low RDS(ON) power switch and a high-side LED/inductor current sensing circuit which uses an external resistor to set the nominal average LED current. Also, AL8861’s power switch incorporates short-circuit current protection to increased robustness. Dimming can be reached by applying an external control signal to the VSET pin. The VSET pin accepts either a DC voltage signal or a PWM signal. The packages available for the AL8861 are TSOT25, MSOP-8EP, and SOT89-5.

Features
Applications
  • Integrated 40 V/0.2 Ω power MOSFET supports LED currents up to 1.5 A
    • Needs only 4 external components and provides higher efficiency while driving 0.5 W, 1 W, 3 W, and multi-die LEDs
  • Input voltage range from 4.5 V to 40 V
    • Operates from 5 VDC, 12 VAC/DC, and 24 AC/DC standard voltage rails supporting a wide range of applications
  • Multi-function VSET pin supports analog and PWM dimming
    • Maximizes the versatility of dimming
  • Analog dimming range from 0% to 100%
    • Deep dimming range without eflicker
  • Built-in protection against LED short/open, thermal overload (OTP), and power-switch-short conditions
    • Provides reliable system performance
  • LED retrofit for low voltage halogen
  • Low voltage industrial lighting
  • LED backlighting
  • Illuminated signs
  • External driver with multiple channels

AL8861 40 V 1.5 A Buck LED Driver

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC LED DRVR REG PWM 1.5A SOT89-5AL8861Y-13IC LED DRVR REG PWM 1.5A SOT89-521622 - ImmediateView Details
IC LED DRVR REG PWM 1A TSOT25AL8861WT-7IC LED DRVR REG PWM 1A TSOT2541268 - ImmediateView Details
IC LED DRIVER REG PWM 8MSOPAL8861MP-13IC LED DRIVER REG PWM 8MSOP41972 - ImmediateView Details
Published: 2017-06-20