Illumination LED drivers
Enable high-efficiency constant-current or strobe LED applications
Illuminate people or objects with infrared, multi-color or UV lights with our illumination LED drivers for buck, boost or linear topologies. With analog and PWM dimming methods, you can optimize your illumination functionality in a variety of building automation, medical, stage lighting and personal electronics applications.
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Max VIN <7 V
Max VIN 7 V to 40 V
Max VIN >40 V
Technical resources
Application note
Loop Response Considerations for Peak Current Mode Buck LED Driver Application
This application report details the PCM buck LED driver, analyzes the stability constraint and provides a simple equation to calculate bandwidth and phase margin of the converter.
Video
Dimming Methods: Analog Dimming
Learn basic principles and limitations of analog dimming in LED drivers.
Video
Dimming Methods: PWM Dimming
Learn the basics of PWM dimming based on three dimming methodologies: main FET, series FET and shunt FET dimming.
Design & development resources
Reference design
IR LED Illumination and ICR Control Reference Design for IP Network Cameras With Day/Night Vision
This reference design showcases an Infrared LED illumination sub-system for Internet Protocol (IP) network cameras with day and night vision. The system features a cut filter control, LED dimming, ambient light measuring and ballasting for current of each IR LED string. Ballasting is an (...)
Reference design
1-s to 6-s, up to 1.5-A li-ion battery charger reference design with switching CC source
This reference design demonstrates a cost-optimized onboard battery-charger solution for mid- or low-end vacuum robots, which has up to 1.5-A charging-current capability with a small layout area, providing ±3% charging-voltage accuracy and ±3% charging-current accuracy.
The design enables a stable (...)
Reference design
Display LED driver reference design
This reference design describes the characteristics, operation, and use of the LED/laser driver. This driver contains our TPS92641 IC configured as a solid-state driver solution providing a 3-channel regulated current output to drive 3 solid-state devices. A high-efficiency single inductor (...)