GALT62120

Geehy's 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. The product has passed AEC-Q100 certification, it supports full-width/graphical tail lamps, headlamps, dynamic turn signals, welcome lights, turn signals, cluster indicators, and interior ambient lighting.

Performance

Memory and interface

  • Scalable EEPROM

Power supply

  • Input voltage range: 4.5V~40V

12-Channel Precision High-Side Current Output

  • Channel current up to 100mA set by resistor

  • 2 global, 6 independent current settings

  • High current accuracy

Communication Peripherals

  • Up to 2MHz clock frequency

  • Supports connection of up to 16 devices via UART

  • Transmits up to 8 bytes of data per frame

  • 5V LDO output powers the CAN transceiver

12 Independent PWM Dimming Channels

  • Configurable PWM frequency up to 20 kHz
  • Linear and exponential dimming methods

Communication Watchdog and CRC Calculation

LED Open Circuit/Short Circuit Detection and Individual LED Short Circuit Diagnosis

High Reliability

  • AEC-Q100 Grade 1

  • Operating Temperature Range: -40°C to 125°C

ESD

  • HBM=±6000V
  • CDM=±2000V

Package

  • HTSSOP24

Selection Tools

All Products

Voltage(V)

Switch Channels

Max Current
Per Switch(A)

ADC Cells

ADC Channels

PWM Dimming

I2C

UART

WDT

RDS(on) (mohm)

Temp. Range(°C)

Package

Diagnosis and Protection

Compare
Part No.
Voltage(V)
Switch Channels
Max Current
Per Switch(A)
ADC Cells
ADC Channels
PWM Dimming
I2C
UART
WDT
RDS(on) (mohm)
Temp. Range(°C)
Package
Diagnosis and Protection

Block Diagram

Documentation

Format Size
GALT62120 Datasheet Data Sheet - pdf 160.36 KB December 12, 2025
AN1080_APM32_APM32 Series Tool Chain User Manual Application Note V1.1 pdf 1.21 MB October 28, 2022
AN1090_APM32_TSC Touch Module Application Note V1.0 pdf 1.51 MB April 19, 2023
AN1093_APM32_Eclipse Development Tutorial under APM32 Arm MCU Windows System Application Note V1.0 pdf 3.15 MB July 13, 2023
AN1095_APM32_USB Device Library Application Note Application Note V1.0 pdf 1.15 MB August 30, 2023
GALT62120 Evaluation Kit Schematic Diagram Development Board Schematic - pdf 160.36 KB December 12, 2025
GEEHY-LINK User Guide Development Tool Manual V1.3 zip 3.27 MB December 08, 2023
GALT62120 Evaluation Kit User Guide Development Board Manual - pdf 160.36 KB December 12, 2025

Design Resources

Hardware Development Tools
Software Development Tools
Product
GALT62120 Evaluation Kit Development Board
AI Assistant