MAX1698
MAX1698
PRODUCTIONHigh-Efficiency Step-Up Current Regulator for LEDs
- Part Models
- 4
- 1ku List Price
- Starting From $2.20
Viewing:
Overview
- Over 90% Efficiency
- Lossless, Adjustable LED Brightness
- Space-Saving 10-Pin µMAX Package
- Simpler, Lower Cost, More Reliable Compared to CCFL or EL Backlights
- Up to 5W Output Power
The MAX1698 and MAX1698A are efficient drivers for white or color LEDs. They are ideal for large LED backlit displays in PDAs and laptop computers. Numerous benefits include greater simplicity, lower cost, higher efficiency, longer bulb life, and greater reliability when compared to fluorescent (CCFL) and electroluminescent (EL) lamps.
The MAX1698/MAX1698A are switch-mode boost controllers in which LED current, rather than output voltage, is regulated The devices drive series-connected LEDs with a controlled current that is measured with a typically 15Ω sense resistor, not an expensive fractional-ohm value. LED current control and dimming are accomplished with an adjust input (ADJ). For larger light output, multiple LED banks can be connected in parallel with up to 5W total output power.
The MAX1698A has a higher, and more accurately specified, CS current limit than the MAX1698 for higherpower applications of 5W or more. Both devices are supplied in a space-saving 10-pin µMAX package that occupies half the space of an 8-pin SO. An evaluation kit (MAX1698EVKIT) is available to speed designs.
Applications
- Backlight for LCD Panels
- Battery-Powered Backlight Applications
- Cell Phones
- Handy Terminals
- PDAs
Documentation
Data Sheet 1
Design Note 4
Technical Articles 2
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 |
|---|---|---|---|
| MAX1698AEUB+ | MINI_SO | ||
| MAX1698AEUB+T | MINI_SO | ||
| MAX1698EUB+ | MINI_SO | ||
| MAX1698EUB+T | MINI_SO |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
Evaluation Kit for the MAX1698
Latest Discussions
No discussions on MAX1698 yet. Have something to say?
Start a Discussion on EngineerZone®