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High-brightness LED drivers are integrated circuits that are optimized to efficiently drive strings of high-brightness LEDs. Maxim's continually expanding portfolio includes products covering the full range of efficient switch-mode topologies (step-down, step-up, SEPIC) as well as some linear LED drivers.

General Lighting

Maxim offers a broad range of LED drivers that can be used for general-purpose, low-voltage arch...

Automotive Lighting

High-brightness LEDs are now commonly used for automotive applications ranging from headlights t...

Display Backlighting

LED drivers for backlighting applications are specialized circuits designed to drive one or more...

Projection

Designed to provide high currents at a high efficiency, these products are perfect for projectio...

Camera Flash

Designed to provide momentary high-current flow from battery voltage levels, these products are ...

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Featured Products

Featured Products

MAX25606 6-Switch Matrix Manager for Automotive Lighting

The MAX25606 6-switch matrix manager IC for automotive lighting applications includes a 6-switch...
  • Automotive Ready: AEC-Q100 Qualified
  • Six-Switch Matrix Manager Allows for Flexible Configuration
    • Single and Dual-String Configurations
    • Up to 6 Switches in Series for Single String
    • Up to 3 Switches in Series in Dual-String
    • Up to 3 LEDs per Switch
  • Robust Serial Interface
    • Multidrop UART Communication Interface
    • Up to 64 Addressable Devices
    • Compatible with CAN Physical Layer
  • Optimal PWM Dimming Arrangement Provides Excellent Dimming Performance
    • Programmable 12-Bit PWM Dimming
    • Fade Transition Between PWM Dimming States
    • Internal Clock Generator or External Clock for PWM Dimming
  • EMI Mitigation
    • Programmable Slew Rate for EMI Control
    • Integrated Spread Spectrum Frequency Dithering
  • Protection Features and Package Improve Reliability
    • Open-LED Protection
    • Programmable Open and Short-LED Threshold
    • Open and Shorted-LED Fault Reporting
    • Open Trace Fault Reporting
    • Thermally Enhanced 20-Pin Side Wettable TQFN and 20-Pin TSSOP with Exposed Pad

MAX25512 Automotive 4-Channel Low-Voltage 120mA LED Backlight Driver with Integrated Boost Converter

The MAX25512 is a four-channel white LED backlight driver with an integrated current-mode boost ...
  • Operates Down to 3V on Battery Input After Startup 
    • Wide Boost Duty Cycle to Support Low Input Voltage
  • Boost or SEPIC Current-Mode DC/DC Controller
    • 400kHz to 2.2MHz Operating Frequency Range
    • Spread Spectrum Available
    • Ability to Synchronize to an External Clock
  • LED Current Sinks
    • Up to 120mA Output Current per String
    • Low OUT_ Regulation Voltage for Best Efficiency
    • Optional Phase-Shifting of Outputs
  • I2C Control for Enhanced Flexibility
  • 16667:1 Dimming Ratio at 200Hz
  • NTC Input For LED Current Foldback at High Temperature
  • Hybrid Dimming Capable
  • Built-in Programmable Automatic Fading Functionality
  • Detailed Diagnostic using I2C and FLTB Output
    • Shorted or Open LEDs
    • Thermal Shutdown
    • Output Undervoltage
  • Compact 4x4mm TQFN Package
  • AECQ100 Grade 1

MAX20446C Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller and Hybrid Dimming

The MAX20446 is a 6-channel backlight driver with boost controller for automotive displays. The ...
  • Wide-Voltage-Range Operation
    • Operates Down to 4V Supply After Startup
    • Survives Load Dump Up to 52V
  • High Integration
    • Complete 6-Channel Solution Including Boost Controller
    • All Settings Performed with External Components, No Need for Microcontroller Intervention
  • Robust and Low EMI
    • Spread-Spectrum Oscillator
    • Phase Shifting
    • 400kHz to 2.2MHz Switching-Frequency Range
  • Versatile Dimming Scheme Allows Hybrid or PWM Dimming
    • Dimming Ratio > 10000:1 Using Hybrid Dimming
    • 10000:1 Dimming Ratio at 200Hz using PWM Dimming
  • Complete Fault Protection
    • LED Open/Short Detection and Protection
    • Boost Output Undervoltage and Overvoltage
    • Thermal Shutdown
  • Compact (4mm x 4mm) 24-Pin TQFN Package

MAX25530 Automotive I2C-Controlled 4-Channel 150mA Backlight Driver and 4-Output TFT-LCD Bias

The MAX25530 is a highly integrated TFT power supply and LED backlight driver IC for automotive ...
  • 4-Output TFT-LCD Bias Power
    • 2.8V to 5.5V Input for the TFT-LCD Section
    • Integrated 430kHz or 2.2MHz Boost and Buck-Boost Converters
    • Positive and Negative 10mA Gate Voltage Regulators (Tripler/Inverting Doubler) with Adjustable Output Voltage
    • Flexible Resistor-Programmable Sequencing through the SEQ Pin
    • Undervoltage Detection on All Outputs
    • Low-Quiescent-Current Standby Mode
  • 4-Channel LED Backlight Driver
    • Up to 150mA Current per Channel
    • 4.5V to 42V Input Voltage Range
    • Integrated Boost/SEPIC Controller (440kHz or 2.2MHz)
    • Dimming Ratio 10,000:1 at 200Hz
    • Adaptive Voltage Optimization to Reduce Power Dissipation in the LED Current Sinks
    • Open-String, Shorted-LED, and Short-to-GND Diagnostics
  • Low EMI
    • Phase-Shift Dimming of LED Strings
    • Spread Spectrum on LED Driver and TFT
    • Selectable Switching Frequency
  • I2C Interface for Control and Diagnostics
    • Fault Indication through the FLTB pin and I2C
    • Auto-Retry after Fault Detection
  • Overload and Thermal Protection
  • -40°C to +105°C Ambient Temperature Operation
  • 40-Pin (6mm x 6mm) TQFN Package with Exposed Pad
  • AECQ100 Grade 1

MAX20446B Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller and I2C Interface

The MAX20446 is a 6-channel backlight driver with boost controller for automotive displays. The ...
  • Wide-Voltage-Range Operation
    • Operates Down to 4V Supply After Startup
    • Survives Load Dump Up to 52V
  • High Integration
    • Complete 6-Channel Solution Including Boost Controller
    • I2C Control for Minimum Parts Count
  • Robust and Low EMI
    • Spread-Spectrum Oscillator
    • Phase Shifting
    • 400kHz to 2.2MHz Switching-Frequency Range
    • Fail-Safe Operation Mode Using the FSEN Pin
  • Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C
    • Dimming Ratio > 10000:1 Using Hybrid Dimming
    • 10000:1 Dimming Ratio at 200Hz using PWM Dimming
  • Complete Diagnostics
    • LED Open/Short Detection and Protection
    • Boost Output Undervoltage and Overvoltage
    • Boost Voltage
    • Individual String LED Current
    • Thermal Shutdown
  • Compact (4mm x 4mm) 24-Pin TQFN Package

MAX20069B Automotive I2C-Controlled 4-Channel 150mA Backlight Driver and 4-Output TFT-LCD Bias

The MAX20069B is a highly integrated TFT power supply and LED backlight driver IC for automotive...
  • 4-Output TFT-LCD Bias Power
    • 2.8V to 5.5V Input for the TFT-LCD Section
    • Integrated 440kHz or 2.2MHz Boost and Buck-Boost Converters
    • Positive and Negative 3mA Gate Voltage Regulators with Adjustable Output Voltage
    • Flexible Resistor-Programmable Sequencing through the SEQ Pin
    • Undervoltage Detection on All Outputs
    • Low-Quiescent-Current Standby Mode
  • 4-Channel LED Backlight Driver
    • Up to 150mA Current per Channel
    • 4.5V to 42V Input Voltage Range
    • Integrated Boost/SEPIC Controller (440kHz or 2.2MHz)
    • Dimming Ratio 10,000:1 at 200Hz
    • Adaptive Voltage Optimization to Reduce Power Dissipation in the LED Current Sinks
    • Open-String, Shorted-LED, and Short-to-GND Diagnostics
  • Low EMI
    • Phase-Shift Dimming of LED Strings
    • Spread Spectrum on LED Driver and TFT
    • Selectable Switching Frequency with Fine-Tuning via I2C
  • I2C Interface for Control and Diagnostics
    • Fault Indication through the FLTB pin and I2C
  • Overload and Thermal Protection
  • -40°C to +105°C Ambient Temperature Operation
  • 40-Pin (6mm x 6mm) TQFN Package with Exposed Pad

MAX25613 Automotive Infrared LED Controller

The MAX25613 is a single-channel, high-current IR LED driver for automotive Driver Monitoring Sy...
  • High-Current IR LED Driver with Reduced Peak Current on the Battery Harness
    • Maxim Proprietary Control Architecture
  • Protection Features Increase System Reliability
    • LED Short-to-Battery, Short-to-Ground Protection
    • LED String Open Protection
    • Thermal Protection
    • Fault Diagnosis through Fault Flag
  • Automotive Ready
    • -40°C to +125°C Operating Temperature Range
    • AEC-Q100 Qualified
Printable Data Sheet Evaluation Kit

MAX25605 6-Switch Sequential LED Controller For Automotive Lighting Systems

The MAX25605 is a six-channel automotive sequential LED controller. The device implements a sequ...
 
  • Flexible Dimming Configuration Provides Optimal Performance​ without a Microcontroller or Software
    • Simple Resistor Programming for Sequence Timing and Direction.
    • Hazard Light Applications
    • Sync Pin Allows Sequencing of up to 16 Devices
    • Optional Logarithmic LED Fade
  • Flexible Configuration Allows the Use of the Same Device in Different Applications​
    • One, Two, or Three Series LEDs per Switch
    • Floating Source MOSFETs
  • EMI Reduction
    • Spread-Spectrum Oscillator
    • Slew Rate Control Minimizes LED Current Spikes
  • Protection Features and Package Improve Reliability
    • Single-LED Short, Open, and Open-Trace Detection
    • Thermal Shutdown and Fault Flag
  • Automotive Ready
    • AEC-Q100 Qualified
    • -40°C to +125°C Operating Temperature Range
MAX25014 Automotive Low Input Voltage I<sup>2</sup>C 4-Channel 150mA Backlight Driver

MAX25014 Automotive Low Input Voltage I2C 4-Channel 150mA Backlight Driver

The MAX25014 is a 4-channel backlight driver IC with boost controller for automotive displays. T...
  • Wide Voltage-Range Operation
    • Operates Down to 2.5V Supply After Startup
    • Survives Load Dumps Up to 40V
  • High Integration
    • Complete 4-Channel Solution Including Boost Controller
    • I2C Control for Minimum Parts Count
  • Robust and Low EMI
    • Spread-Spectrum Oscillator
    • Phase Shifting
    • 400kHz to 2.2MHz Switching-Frequency Range
    • nMOS Input Protection Switch
  • Multiple Diagnostic Features
    • LED-Current Measurement
    • Boost Output Voltage Measurement
    • LED Open/Short Detection and Protection
    • Boost Output Undervoltage and Overvoltage
  • Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C
    • Dimming Ratio > 10,000:1 Using Hybrid Dimming
    • 10,000:1 Dimming Ratio at 200Hz Using PWM Dimming
  • Compact (4mm x 4mm) 24-Pin TQFN and SWTQFN Packages
MAX25612B Automotive Synchronous High Voltage LED Controller

MAX25612B Automotive Synchronous High Voltage LED Controller

The MAX25612/MAX25612B is a single-channel high-brightness LED (HB LED) driver for automotive fr...
  • 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
MAX25612 Automotive Synchronous High Voltage LED Controller

MAX25612 Automotive Synchronous High Voltage LED Controller

The MAX25612/MAX25612B is a single-channel high-brightness LED (HB LED) driver for automotive fr...
  • 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
MAX25600 Synchronous High Voltage 4 Switch Buck Boost LED Controller

MAX25600 Synchronous High Voltage 4 Switch Buck Boost LED Controller

The MAX25600 is a synchronous 4-switch buck-boost LED driver controller. The controller regulate...
  • 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
    • Constant-Current and Constant-Voltage Regulation
    • 28-pin TSSOP with EP Pad and 28-pin(5mm x 5mm) TQFN with EP Pad Packages
  • Wide Dimming Ratio allows High Contrast Ratio
    • Analog and PWM Dimming
    • Flicker-Free PWM Dimming with Spread Spectrum
    • Integrated pMOS Dimming FET Gate Driver
    • 200Hz On-Board Ramp Simplifies PWM Dimming
  • Protection Features and Wide Temperature Range Increase System Reliability
    • Short Circuit,Overvoltage, and Thermal Protection
    • LED Current Monitor and Input Current Limiter
    • -40°C to +125°C Operating Junction-Temperature Range

MAX20444 Automotive 4-Channel 130mA Backlight Driver with Boost/SEPIC Controller and I2C Interface

The MAX20444 is a 4-channel backlight driver with boost controller for automotive displays. The ...
  • Wide-Voltage-Range Operation
    • Operates Down to 4V Supply After Startup
    • Survives Load Dump Up to 52V
  • High Integration
    • Complete 4-Channel Solution Including Boost Controller
    • I2C Control for Minimum Parts Count
  • Robust and Low EMI
    • Spread-Spectrum Oscillator
    • Phase Shifting
    • 400kHz to 2.2MHz Switching-Frequency Range
    • Fail-Safe Operation Mode Using the FSEN Pin
  • Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C
    • Dimming Ratio > 10000:1 Using Hybrid Dimming
    • 10000:1 Dimming Ratio at 200Hz using PWM Dimming
  • Complete Diagnostics
    • LED Open/Short Detection and Protection
    • Boost Output Undervoltage and Overvoltage
    • Boost Voltage
    • Individual String LED Current
    • Thermal Shutdown
  • Compact (4mm x 4mm) 24-Pin TQFN and SWTQFN Packages
MAX20444B Automotive 4-Channel 130mA Backlight Driver with Boost/SEPIC Controller and I<sup>2</sup>C Interface

MAX20444B Automotive 4-Channel 130mA Backlight Driver with Boost/SEPIC Controller and I2C Interface

The MAX20444B is a 4-channel backlight driver with boost controller for automotive displays. The...
  • Wide-Voltage-Range Operation
    • Operates Down to 4V Supply After Startup
    • Survives Load Dump Up to 52V
  • High Integration
    • Complete 4-Channel Solution Including Boost Controller
    • I2C Control for Minimum Parts Count
  • Robust and Low EMI
    • Spread-Spectrum Oscillator
    • Phase Shifting
    • 400kHz to 2.2MHz Switching-Frequency Range
    • Fail-Safe Operation Mode Using the FSEN Pin
  • Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C
    • Dimming Ratio > 10000:1 Using Hybrid Dimming
    • 10000:1 Dimming Ratio at 200Hz using PWM Dimming
  • Complete Diagnostics
    • LED Open/Short Detection and Protection
    • Boost Output Undervoltage and Overvoltage
    • Boost Voltage
    • Individual String LED Current
    • Thermal Shutdown
  • Compact (4mm x 4mm) 24-Pin TQFN and SWTQFN Packages
MAX25024 Automotive Low Input Voltage I<sup>2</sup>C 4-Channel 150mA Backlight Driver Supporting ASIL B

MAX25024 Automotive Low Input Voltage I2C 4-Channel 150mA Backlight Driver Supporting ASIL B

The MAX25024 is a 4-channel backlight driver IC with boost controller for automotive displays. T...
  • Wide Voltage-Range Operation
    • Operates Down to 2.5V Supply After Startup
    • Survives Load Dumps Up to 40V
  • High Integration
    • Complete 4-Channel Solution Including Boost Controller
    • I2C Control for Minimum Parts Count
  • Robust and Low EMI
    • Spread-Spectrum Oscillator
    • Phase Shifting
    • 400kHz to 2.2MHz Switching-Frequency Range
    • nMOS Input Protection Switch
  • Multiple Features for ASIL B Systems
    • LED-Current Measurement
    • Boost Input Current Measurement
    • Boost Output Voltage Measurement
    • LED Open/Short Detection and Protection
    • Boost Output Undervoltage and Overvoltage
  • Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C
    • Dimming Ratio > 10,000:1 Using Hybrid Dimming
    • 10,000:1 Dimming Ratio at 200Hz Using PWM Dimming
  • Compact (4mm x 4mm) 24-Pin TQFN and SWTQFN Packages
Printable Data Sheet Evaluation Kit
MAX20050 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

MAX20050 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

The MAX20050–MAX20053 are high-brightness LED (HB LED) drivers for automotive exterior lighting ...
  • Automotive Ready: AEC-Q100 Qualified
  • Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
  • Wide 4.5V to 65V Input Supply Range
  • Two Switching Frequency Options: 400kHz and 2.1MHz
  • Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053/MAX20053D) Options
  • Switching Frequency Synchronized to PWM Dimming Signal
  • Active-Low Fault (FLT) Indicator
  • Output Short-Circuit Protection
  • High-Side Current Regulation Eliminates One Connection to LED String
  • Spread-Spectrum Mode Alleviates EMI Problems
  • Low 200mV Full-Scale High-Side Current-Sense Voltage
  • REFI Pin Adjusts LED Current Down to Zero
  • PWM Dimming Disconnects Both High- and Low- Side MOSFET Drivers
  • 5V, 10mA LDO Output Provides Bias to Other Circuits
  • Ultra-Low Shutdown Current (5µA typ)
  • Output Overload, Short-Circuit, and Overtemperature Protections
  • 12-Pin (3mm x 3mm) TDFN,14-Pin (5mm x 4.4mm) TSSOP, and 24-pin (4mm x 4mm) TQFN Package Options
MAX20051 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

MAX20051 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

The MAX20050–MAX20053 are high-brightness LED (HB LED) drivers for automotive exterior lighting ...
  • Automotive Ready: AEC-Q100 Qualified
  • Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
  • Wide 4.5V to 65V Input Supply Range
  • Two Switching Frequency Options: 400kHz and 2.1MHz
  • Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053/MAX20053D) Options
  • Switching Frequency Synchronized to PWM Dimming Signal
  • Active-Low Fault (FLT) Indicator
  • Output Short-Circuit Protection
  • High-Side Current Regulation Eliminates One Connection to LED String
  • Spread-Spectrum Mode Alleviates EMI Problems
  • Low 200mV Full-Scale High-Side Current-Sense Voltage
  • REFI Pin Adjusts LED Current Down to Zero
  • PWM Dimming Disconnects Both High- and Low- Side MOSFET Drivers
  • 5V, 10mA LDO Output Provides Bias to Other Circuits
  • Ultra-Low Shutdown Current (5µA typ)
  • Output Overload, Short-Circuit, and Overtemperature Protections
  • 12-Pin (3mm x 3mm) TDFN,14-Pin (5mm x 4.4mm) TSSOP, and 24-pin (4mm x 4mm) TQFN Package Options
MAX20052 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

MAX20052 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

The MAX20050–MAX20053 are high-brightness LED (HB LED) drivers for automotive exterior lighting ...
  • Automotive Ready: AEC-Q100 Qualified
  • Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
  • Wide 4.5V to 65V Input Supply Range
  • Two Switching Frequency Options: 400kHz and 2.1MHz
  • Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053/MAX20053D) Options
  • Switching Frequency Synchronized to PWM Dimming Signal
  • Active-Low Fault (FLT) Indicator
  • Output Short-Circuit Protection
  • High-Side Current Regulation Eliminates One Connection to LED String
  • Spread-Spectrum Mode Alleviates EMI Problems
  • Low 200mV Full-Scale High-Side Current-Sense Voltage
  • REFI Pin Adjusts LED Current Down to Zero
  • PWM Dimming Disconnects Both High- and Low- Side MOSFET Drivers
  • 5V, 10mA LDO Output Provides Bias to Other Circuits
  • Ultra-Low Shutdown Current (5µA typ)
  • Output Overload, Short-Circuit, and Overtemperature Protections
  • 12-Pin (3mm x 3mm) TDFN,14-Pin (5mm x 4.4mm) TSSOP, and 24-pin (4mm x 4mm) TQFN Package Options
MAX20053 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

MAX20053 2A Synchronous -Buck LED Drivers with Integrated MOSFETs

The MAX20050–MAX20053 are high-brightness LED (HB LED) drivers for automotive exterior lighting ...
  • Automotive Ready: AEC-Q100 Qualified
  • Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
  • Wide 4.5V to 65V Input Supply Range
  • Two Switching Frequency Options: 400kHz and 2.1MHz
  • Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053/MAX20053D) Options
  • Switching Frequency Synchronized to PWM Dimming Signal
  • Active-Low Fault (FLT) Indicator
  • Output Short-Circuit Protection
  • High-Side Current Regulation Eliminates One Connection to LED String
  • Spread-Spectrum Mode Alleviates EMI Problems
  • Low 200mV Full-Scale High-Side Current-Sense Voltage
  • REFI Pin Adjusts LED Current Down to Zero
  • PWM Dimming Disconnects Both High- and Low- Side MOSFET Drivers
  • 5V, 10mA LDO Output Provides Bias to Other Circuits
  • Ultra-Low Shutdown Current (5µA typ)
  • Output Overload, Short-Circuit, and Overtemperature Protections
  • 12-Pin (3mm x 3mm) TDFN,14-Pin (5mm x 4.4mm) TSSOP, and 24-pin (4mm x 4mm) TQFN Package Options
MAX25601A Synchronous Boost and Synchronous Buck LED Controllers

MAX25601A Synchronous Boost and Synchronous Buck LED Controllers

The MAX25601A/B/C/D is a synchronous boost controller followed by a synchronous buck LED control...
  • Integration Minimizes BOM for High-Brightness LED Driver, Saving Space and Cost
    • Wide Input-Voltage Range from 4.5V to 40V
    • Wide Boost-Output Range up to 65V
    • Programmable Switching Frequency Optimizes Component Size
    • External MOSFETs Can be Sized for Appropriate Current
    • Synchronous Rectification Provides High Efficiency and Fast Transient Response
    • Average Current-Mode Control for Buck Eliminates Compensation Components
  • Wide Dimming Ratio Allows High Contrast Ratio
    • Analog Dimming and PWM Dimming
    • Analog Voltage-Controlled PWM Dimming
  • Protection Features and Wide Temperature Range Increase System Reliability
    • Short Circuit, Overvoltage, and Thermal Protection
    • -40°C to +125°C Operating Temperature Range

Reference Designs

MAXREFDES1275: 1A,3-Channel LED Driver in Buck Configuration using MAX20050 and its dimming control using MAX32630FTHR

The MAX20050 is a high-brightness LED driver for automotive exterior lighting applications.

Supply-Chopped Dimming Control Boosts LED Driver Efficiency and Keeps Inrush Currents to a Minimum

LED driver reference design drives a single LED string with forward voltages up to 60V and allow...

Designing a Buck-Boost LED Driver Using the MAX16834

The MAX16834 current-mode high-brightness LED driver is featured, and the MAX16834 EV (evaluatio...

Boost Backlight LED Driver

A LED display backlight driver using a boost switching power supply and linear current sinks for...

Reference Design for a Signal-Lamp LED Driver

A linear LED driver for 6 strings of 4 LEDs at a current of 350mA per string. Uses the MAX16836.

SEPIC Backlight LED Driver

A design for an LED backlight consisting of 8 strings of 8 LEDs driven at 70mA per string.

Offline LED Driver Reference Design

An 27 LED driver intended to run directly off a 400VDC input.

Reference Design for a 3S3P Rear Combination Lamp (RCL) LED Driver

An LED driver for a Rear Combination Lamp (RCL) using the MAX16823 and external BJTs.

MR-16 LED Driver with a 5V Auxiliary Output to Power a Pulsating LED Cooler

Reference design consisting of a white LED driver for an MR-16 LED light combined with a 5V powe...

Replace Inefficient MR16 Halogen Lamps with LEDs

Using a driver circuit based on a specialized buck controller, a white LED with integrated heats...

Design of a Nonisolated, Flyback LED Driver Circuit

Flyback LED drivers are versatile because they can be used for applications that have input volt...

Driving LEDs in Battery-Operated Applications: Controlling Brightness Power Efficiently

Describes how LEDs work and how to drive them in Li+/Li-Ion/NiCd/NiMH handheld devices efficient...