Irvine, California, March 12, 2025 – Elevation Microsystems, delivering energy-efficient high-voltage power management solutions for sustainable electrification, backed by expertise in automotive power system architecture, functional safety, and advanced design, unveils groundbreaking ISO 26262 functional safety compliant solutions for automotive front-end LED driver applications, the EV3520Q and the EV1702B.
The EV1702B is an ISO 26262 ASIL-B compliant, dual 70V, 1.75A synchronous step-down LED driver, specifically designed for automotive lighting systems. The driver offers a range of features, including LED open/short fault detection, thermal shutdown, fail-safe operation, and adjustable current control for two strings of LEDs.
Through SPI communication, the EV1702B allows for adjusting switching frequencies from 200kHz to 2MHz. It also provides analog and PWM dimming control for precise lighting adjustments. The driver supports 20:1 analog dimming with ±2% accuracy at full current and 100:1 internal PWM dimming with a duty cycle that can range from 1% to 100%. Additionally, external PWM pins are available for external dimming control, offering even greater flexibility. The EV1702B is housed in a thermally-enhanced 32-pin TSSOP package, ensuring robust thermal performance.
The EV3520Q is a dual-phase, peak current mode boost controller with SPI communication, engineered specifically to support automotive front-lamp LED drivers. The versatile solution ensures optimal performance for LED boost supply, general-purpose step-up converters, and battery-powered industrial or instrumentation applications.
The EV3520Q allows for on-the-fly output voltage adjustment through an external feedback resistor voltage divider and an 8-bit DAC, which is programmable via SPI. In addition to offering flexibility, the controller features SPI diagnostics for enhanced fault monitoring, including cycle-by-cycle current limit, boost output overvoltage/undervoltage protection, and over-temperature protection.
Furthermore, the device includes phase-shifted clock signaling that reduces output ripple and minimizes system filtering capacitance and inductance requirements. It integrates Limp Home (LH) Mode to ensure continued operation even in the event of failure. Designed to meet AEC-Q100 standards, the EV3520Q is built to handle the demanding requirements of automotive lighting systems with improved diagnostic capabilities and reliability.
“The EV1702B and the EV3520Q advanced components are designed to enhance reliability, safety, and performance in automotive lighting systems, addressing the increasing demand for high-quality, energy-efficient lighting solutions that meet rigorous AEC-Q100 standards,” stated James Park, Global Chief Operating Officer and President of Elevation Microsystems, Korea.
Please email us at sales@elevationmicro.com for more information.
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About Elevation Microsystems
Elevation Microsystems was founded with the mission to deliver a comprehensive product portfolio of high-voltage power management solutions, leveraging next-generation wide bandgap technology for electric vehicles (EVs). Focused on advancing the electric vehicle industry, Elevation Microsystems is committed to providing energy-efficient, high-voltage power solutions that support the sustainable electrification of the world.
Contact Information
James Park
james.park@elevationmicro.com