85V Automotive-Compliant LED Driver from Diodes Incorporated Supports Multiple Topologies with Fault Reporting
19 Décembre 2024 - 4:14PM
Business Wire
Diodes Incorporated (Diodes) (Nasdaq: DIOD) today announces the
expansion of its automotive-compliant* LED driver portfolio by
introducing the AL8866Q. This DC-switching LED driver-controller
drives an external MOSFET and supports buck, boost, buck-boost, and
single-ended primary-inductance converter (SEPIC) topologies for
high-power LED lighting systems. Applications include daytime
running lights (DRL), high/low beams, fog lights, turn lights,
brake/stop lights, and more.
It operates within a wide input power supply range from 4.7V to
85V, covering the common 12V, 24V, and 48V battery power rails.
This flexibility and multi-mode operation enables lighting
designers to standardize on a single component type, streamlining
inventory and simplifying design processes.
The AL8866Q has a fixed-frequency (400kHz) peak current-mode
control architecture. It incorporates a spread spectrum frequency
modulation technique to enhance EMI performance, which is compliant
with the most stringent CISPR 25 Class 5 standard.
The device supports analog and PWM dimming of the LED current
via its DIM pin and has a 1% reference tolerance, enabling better
brightness control and matching between lamps. With an over 100:1
analog dimming range, it achieves ±12% output current accuracy at
low (20%) analog dimming levels, making it more precise than
similar LED drivers available. Alternatively, PWM dimming (0.1 to
1kHz) achieves a 100:1 dynamic range.
The AL8866Q integrates a soft-start function, gradually
increasing the inductor and switch current to minimize potential
overvoltage and overcurrent at the output. It features an
open-drain fault output to indicate various fault conditions, which
include LED output-overvoltage, LED output-open/-short,
cycle-by-cycle overcurrent protection, sense-resistor and
shorted-inductor/-diode detection, diode-open circuit, and thermal
shutdown.
The AL8866Q is available in the SO-8EP and U-DFN3030-10
packages, with an operating temperature range of -40°C to +125°C.
The AL8866QSP-13 (SO8-EP) and AL8866QFN-7 (U-DFN3030-10) are
available at $0.50 and $0.48 in 1,000-piece quantities,
respectively. A standard compliance version, AL8866, is available
and suitable for industrial and commercial applications.
About Diodes Incorporated
Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor’s
SmallCap 600 and Russell 3000 Index company, delivers high-quality
semiconductor products to the world’s leading companies in the
automotive, industrial, computing, consumer electronics, and
communications markets. We leverage our expanded product portfolio
of analog and discrete power solutions combined with leading-edge
packaging technology to meet customers’ needs. Our broad range of
application-specific products and solutions-focused sales, coupled
with global operations including engineering, testing,
manufacturing, and customer service, enable us to be a premier
provider for high-volume, high-growth markets. For more
information, visit www.diodes.com.
*Automotive-compliant - AEC qualified, manufactured in
facilities certified to IATF 16949, supporting PPAP documents.
The Diodes logo is a registered trademark of Diodes Incorporated
in the United States and other countries.
All other trademarks are the property of their respective
owners.
© 2024 Diodes Incorporated. All Rights Reserved.
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version on businesswire.com: https://www.businesswire.com/news/home/20241219879063/en/
Gurmeet Dhaliwal Director, Investor Relations & Corporate
Marketing Diodes Incorporated +1 408-232-9003 Contact Us
Diodes (NASDAQ:DIOD)
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