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AL8862

60V 1A STEP-DOWN LED DRIVER

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Description

The AL8862 is a step-down DC-DC converter designed to drive LEDs with a constant current. The AL8862 operates with an input supply voltage from 5V to 60V and provides an externally adjustable output current up to 1A. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8862 switches at frequency up to 1MHz. This allows the use of smaller size external components, hence minimizing the PCB size.

The AL8862 integrates the power switch and a high-side output current sensing circuit. Maximum output current of AL8862 is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin. The soft-start time can be adjusted using an external capacitor from the CTRL pin to ground. An input voltage of 0.3V or lower at CTRL pin will shut down the power switch.

Feature(s)

  • Wide Input Voltage Range: 5V to 60V
  • Output Current up to 1A
  • Internal 60V NDMOS Switch
  • Typical 4% Output Current Accuracy
  • Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal
  • High-Efficiency (Up to 97%)
  • LED Short-Circuit Protection
  • Inherent Open-Circuit LED Protection
  • Current-Sense Resistor Short-Circuit Protection
  • Over-temperature Shutdown
  • Up to 1MHz Switching Frequency
  • SO-8EP and U-DFN3030-6 Packages Available in Green Molding Compound (No Br, Sb) MSL-Level 1 
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen- and Antimony-Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

  • Commercial & Industrial Lighting
  • Appliances Interior Lighting
  • Architecture Detail Lighting
  • External Driver with Multiple Channels and Smart Lighting

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Topologies (Buck) Yes
Topologies (Buck-Boost) No
Topologies (Boost) No
MinimumInput Voltage (V) 5 V
MaximumInput Voltage (V) 60 V
Maximum Output Voltage (V) 56 V
Maximum LED Current (A) 1 A
LED Current Accuracy (%) 4 %
Switching Frequency Maximum (kHz) 1000 kHz
Dimming (PWM) Yes
Dimming (Analog) Yes
Efficiency (%) 95 %
OperatingTemperatureRange  (°C) -40 to 105 °C
Sense Voltage (mV) 100 mV
AEC-Q100 Grade No

Related Content

Packages

Applications

Technical Documents

SPICE Model

Calculators

Evaluation Boards and User Guides

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AL8862FF-7

AL8862FF-7

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 15642 10/3/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 13524 10/2/2022 Europe, Asia, North America Buy Now
Request Sample
AL8862QSP-13

AL8862QSP-13

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 15000 10/3/2022 United States Buy Now
Farnell, An Avnet Company 4240 10/3/2022 England Buy Now
Mouser Electronics Inc. 90000 10/3/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 3925 10/2/2022 Europe, Asia, North America Buy Now
Request Sample

FAQs

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