As automotive systems evolve toward higher intelligence and customization, demand for high-side LED drivers continues to grow. New energy vehicles typically use around 75 high-side driver chips, more than double the 35 used in traditional fuel vehicles. To meet the need for more advanced and reliable lighting architectures, Geehy has introduced the GALT62120, a 12-channel automotive high-side LED driver.

The GALT62120 automotive high-side LED driver supports 12 channels of precise high-side current output for pixel-level LED control. It integrates programmable 12-bit PWM dimming with linear and exponential modes, and features LED open/short detection, over-temperature protection, and other safety mechanisms. Designed to meet AEC-Q100 Grade 1 standards, it supports full-width/graphical tail lamps, headlamps, dynamic turn signals, welcome lights, turn signals, cluster indicators, and interior ambient lighting.

Driving the Future of Intelligent Automotive Lighting

Key Features

· Wide input voltage: 4.5V ~ 40V

· 12-channel precision high-side current output

· Independent 12-bit PWM dimming

· Integrated peripherals: UART (supports 16 devices), 8-bit ADC, EEPROM

· Protection: LED open/short detection, over-temperature protection, CRC, communication watchdog

· ESD: HBM ±6kV, CDM ±2kV

· High reliability: AEC-Q100 Grade 1

· Package: HTSSOP24

Innovative Design for Multi-Channel, Low-Power, and Intelligent Lighting Trends

Addressing the industry trend toward multi-channel, low-power, and intelligent high-side drivers, the Geehy GALT62120 automotive high-side LED driver features several unique design innovations:

· High-accuracy oscillator with ±1.5% clock precision across voltage and temperature

· Optimized high-voltage robustness with improved floating-supply and floating-ground design

· Multi-power-domain architecture preventing cross-domain interference and ensuring HV/LV isolation

· Adjustable driver circuitry for improved EMC performance

· UART communication up to 2MHz for broader system compatibility

· High-precision PSSR and low-drift band-gap design with <20 ppm temperature drift

· High-voltage, high-current LDO with pseudo-ESR compensation, capacitor multiplication, and dynamic zero-tracking for stable output across varying external ESR

· Up to 100mA output per channel for expanded lighting coverage

· Enhanced ESD robustness: HBM ±6kV, CDM ±2kV

Geehy provides complete evaluation tools, development kits, documentation, and local engineering support for the GALT62120 automotive high-side LED driver. 

Additionally, a full-stack “Automotive-Grade MCU + LED Driver” lighting solution is also available for full-width/graphical tail lamps, headlamps, dynamic turn signals, welcome lights, turn signals, cluster indicators, and interior ambient lighting. The GALT62120 automotive high-side LED driver is now in mass production. For samples, please contact your local Geehy sales representative.