LED Drivers
Automotive 2A Buck-Boost/Buck LED Driver with Wide Input Voltage and Adjustable Frequency
ALT80802
The ALT80802 offers a versatile and robust solution for automotive LED lighting, supporting both buck and buck-boost topologies, a wide input voltage range (3.8V-50V), and adjustable switching frequency.
Product Details
Product Details
Top Features
- AEC-Q100 qualified—Automotive-Grade; Facilitates system level certification
- Simple operation—Same PN can be in buck-boost or buck mode
- Supply voltage from 3.8 to 50 V
- Handles automotive load dump and cold crank
- Can be run in buck mode from a pre-boost supply
- Supports up to 16 V output in buck-boost mode
- Addresses automotive market need for 3-4 WLED solution
- 150 mΩ integrated MOSFET switch
- Supports up to ~2A in buck mode and ~750mA in buck-boost (Vinmin dependent)
- Programmable switching frequency up to 2.5 MHz, with frequency dithering
- Designed for low EMC
- Operation can be above AM band
- Small solution size
- Integrated level shifting
- Allows ground-referenced enable and fault flag in buck-boost mode
- PWM dimming via direct logic input or power supply voltage
- Supports all automotive PWM techniques including “single-wire”
- Extensive protection and fault table
- Robust, does not require extra protection components
- 3x3mm DFN-10 wettable flank exposed pad package
- Small yet thermally efficient
- Wettable flank eliminates need for x-ray inspection
Target Application
