MAX25612

PRODUCTION

Automotive Synchronous High Voltage LED Controller

Single-Channel Synchronous LED Controller for Automotive Exterior Lighting Applications

Data Sheet (Rev. 4) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.95

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Overview

Integration Minimizes BOM and Cost
- +5.0V to +48V Wide Input Voltage Range with a Maximum +65V Boost Output
- Integrated pMOS Dimming FET Driver
- ICTRL Input for Analog Dimming
- Integrated High-Side Current-Sense Amplifier
- 200Hz Ramp Generator Simplifies PWM Dimming
Simple to Optimize for Efficiency, Board Space, and Input Operating Range
- Synchronous MOSFET Driver Improves Efficiencyby up to 5% for High-Current Boost, Buck-Boost, and High-Side Buck Applications
- Programmable Switching Frequency (200kHz to 2.2MHz)
- 20-Pin TSSOP Package with Exposed Pad and Thermally Enhanced 4mm x 4mm, 20-Pin Side-Wettable TQFN Packages
Protection Features Increase System Reliability
- Short Circuit, Overvoltage and Thermal Protection
- Fault Diagnosis through Fault Flag
Automotive Ready
- -40°C to +125°C Operating Temperature Range
- AEC-Q100 Qualified

The MAX25612/MAX25612B is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light and other LED lights. It can take an input voltage from 5V to 48V and can drive a string of LEDs with a maximum output voltage of 65V. The MAX25612/MAX25612B is fully synchronous and is suitable for boost and buck-boost applications that need synchronous rectification providing efficiencies greater than 90%.

The MAX25612/MAX25612B senses output current at the high side of the LED string. High-side current sensing is required to protect against shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the ICTRL input provides additional analog dimming capability in the MAX25612/MAX25612B. The MAX25612/MAX25612B also includes a active-low FLT flag that indicates open string, shorted string, and thermal shutdown. The MAX25612/MAX25612B has built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25612/MAX25612B is available in a space-saving (4mm x 4mm), 20-pin side-wettable TQFN or a 20-pin TSSOP package and is specified to operate overthe -40°C to +125°C automotive temperature range.

Applications

Automotive Exterior Lighting:
Commercial, Industrial, and Architectural Lighting
Daytime Running Lights (DRLs)
Fog Light and Adaptive Front-Light Assemblies
High-Beam/Low-Beam/Signal/Position Lights

Part Models: 4
1ku List Price: Starting From $2.95

Documentation

Data Sheet 1

MAX25612: Automotive Synchronous High Voltage LED Controller Data Sheet (Rev.4) 05/20/2020

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX25612ATP/VY+	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25612ATP/VY+T	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25612AUP/V+	20-TSSOP_4.4-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25612AUP/V+T	20-TSSOP_4.4-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 25, 2022 - 2237 ASSEMBLY
		pcn_2237
MAX25612AUP/V+	PRODUCTION	pcn_2237

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX25612

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Features and Benefits

Configured for Boost or Buck-Boost Mode
Synchronous Controller and Power Stage
Analog Dimming Control
Analog or Digital PWM Dimming

Product Details

The MAX25612 evaluation kit (EV kit) provides a proven design to evaluate the MAX25612 automotive high-voltage, high-brightness LED (HB LED) synchronous controller. The EV kit is set up for boost and buck-boost configurations and operates from a 6V-to-18V DC supply voltage. The EV kit is configured to deliver up to 2A to one string of LEDs. The total voltage of the string can vary from 3V to 48V.

Applications

Automotive Exterior Lighting:
Commercial, Industrial, and Architectural Lighting
Daytime Running Lights (DRLs)
Fog Light and Adaptive Front-Light Assemblies
High-Beam/Low-Beam/Signal/Position Lights

Resources

MAX25612EVKIT Gerber Files
5/24/2023

Evaluation Kit for the MAX25612B

Buy Now View Details

Features and Benefits

Configured for SEPIC Mode
Synchronous Controller and Power Stage
Analog Dimming Control
Analog or Digital PWM Dimming

Product Details

The MAX25612B evaluation kit (EV kit) provides a proven design to evaluate the MAX25612B automotive high- voltage, high-brightness LED (HB LED) synchronous con- troller. The EV kit is set up for a SEPIC configuration and operates from a 6V to 18V DC supply voltage. The EV kit is configured to deliver up to 2A to one string of LEDs. The total voltage of the string can vary from 3V to 24V.

Applications