MAX25612
Automotive Synchronous High Voltage LED Controller
Single-Channel Synchronous LED Controller for Automotive Exterior Lighting Applications
Top
Overview
Features and Benefits
- 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
Product Details
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
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX25612ATP/VY+ | Material Declaration | Reliability Data | 20-LFCSP_SS-4X4X0.75 | |
| MAX25612ATP/VY+T | Material Declaration | Reliability Data | 20-LFCSP_SS-4X4X0.75 | |
| MAX25612AUP/V+ | Material Declaration | Reliability Data | 20-TSSOP_4.4-4.4_MM | |
| MAX25612AUP/V+T | Material Declaration | Reliability Data | 20-TSSOP_4.4-4.4_MM | |
| Wafer Fabrication Data |
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.