MAX25603

RECOMMENDED FOR NEW DESIGNS

Automotive Four-Switch Buck-Boost LED Controller for Combination Head Lights

Automotive Seamless High-Voltage Buck-Boost Dual String LED Driver with more than 95% Efficiency

Data Sheet (Rev. 0)
Product Selection Table
Part Models
4
1ku List Price
Starting From $3.10
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Part Details

  • Automotive Ready: AEC-Q100 Qualified
  • Integration Minimizes BOM for High-Brightness LED Driver, Saving Space and Reducing Cost
    • Wide Input Voltage Range from 5V to 60V
    • H-Bridge Single Inductor Buck-Boost Architecture
    • Built-In Fast LED Current Limit During Transients
    • Suitable for Dual-String Applications with Time- Sharing
    • 28-Pin TSSOP with EP Pad
  • Full Featured Dual String Driver
    • Analog and PWM Dimming on Both Channels (EN1 and EN2)
    • Analog Devices’ Proprietary Control Architecture Limits LED Current Spikes and Spike Duration in Dual-String Mode
    • Flicker-Free PWM Dimming with Spread- Spectrum
    • Dual Integrated pMOS Dimming FET Gate Driver
  • Protection Features and Wide Temperature Range Increase System Reliability
    • Short Circuit, Overvoltage, and Thermal Protection
    • Fast LED Current Limit and Input Current Limiter
  • -40°C to +150°C Operating Junction-Temperature Range
MAX25603
Automotive Four-Switch Buck-Boost LED Controller for Combination Head Lights
MAX25603: Simplified Application Diagram
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Documentation

Data Sheet 1

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Software Resources

Device Drivers 1

Hardware Ecosystem

Parts Product Life Cycle Description
Buck-Boost LED Drivers 1
MAX25600
RECOMMENDED FOR NEW DESIGNS Synchronous High Voltage 4 Switch Buck Boost LED Controller
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Evaluation Kits

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schematic 1
MAX25603EVKIT

Evaluation Kit for the MAX25603

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Features and Benefits

  • 5V to 60V Input Voltage Range
  • Demonstrates Use in Combination Headlamps and Multistring, Time-Sharing Applications
  • Analog and Digital Dimming Control
  • Input Current Limit
  • LED Current Clamp Function
  • Output Discharge for Faster Transient Time
  • LED Short and Open Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX25603 evaluation kit (EV kit) provides a proven design to evaluate the MAX25603 automotive highvoltage, high-brightness LED buck-boost controller. The EV kit operates from a 5V to 60V DC supply voltage. The EV kit is configured to deliver up to 1A to one or two strings of 1 to 15 LEDs. The total voltage of each string can vary from 0V to 60V. The anode of the LED strings should go to LED1+ or LED2+ terminals and the cathodes to the GND terminal. Shunting FETs are provided to emulate a combination headlamp in which a single LED string can contain the clearance lamp (CLL), low beam (LB), and high beam (HB) all in one. Each can be independently turned on or off by shorting across the appropriate segments of the LED string.

Applications

  • Combination Automotive Head Lamps
MAX25603EVKIT
Evaluation Kit for the MAX25603
MAX25603EVKIT:Board Photo

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