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Diodes Incorporated AL8861Q | Demoboard AL8861QEV1
High Efficiency 40V 1.5A Automotive Grade Buck LED Driver
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-40 V |
| Output 1 | 1.5 A |
Description
The AL8861Q is a hysteresis mode DC-DC step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device can operate with an input supply voltage from 4.5V to 40V and provide an externally adjustable output current up to 1.5A for MSOP-8EP package. Depending upon supply voltage and external components, this converter can provide up to 40 watts output power.
Features
- AEC-Q100 Grade 1 Qualified
- Wide Input Voltage Range: 4.5V to 40V
- Output Current Up to 1.5A
- Internal 40V NDMOS Switch
- Typical 5% Output Current Accuracy
- Single Pin for On/Off and Brightness Control by DC Voltage or
- PWM Signal- High Efficiency (>95%)
- LED Short-Circuit Protection
- Inherent LED Open-Circuit Protection
- Over Temperature Shutdown
- Up to 1MHz Switching Frequency
- Pb-Free MSOP-8EP Packages
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Typical applications
- Automotive Interior LED Lamps, Automotive Exterior LED Lamps
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 68 µH, 2.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance68 µH | Saturation Current2.2 A | DC Resistance132 mΩ | Self Resonant Frequency8 MHz | Size1050 | VersionPerformance |