Advanced Dimming Capable Buck LED Driver Reference Design for Industrial IR LED Applications
Description
This reference design showcases a small form-factor LED driver (TPS92515) optimized to drive up to five infrared (IR) LEDs for industrial cameras and other general lighting designs. It can drive up to 1 A through LED loads of up to 9.5-V from a 24-V input source. The buck topology is implemented as a secondary-stage LED driver which is simple: high performance and cost effective. Additional design flexibility includes analog and PWM dimming (including shunt FET dimming) support as well as EMI filtering designed to meet FCC part 15 class B conduction requirements.
Features
- Optimized for infrared LEDs and other small form-factor LED lighting applicationsFCC part 15 class B tested EMISmall inductor size (4 mm X 4 mm)Analog and PWM dimmingSupports high-frequency shunt FET dimming up to 30 kHz
Applications
- Video doorbell
- 3D printer
- Vacuum robot
- Driver monitoring
- Machine vision lighting
- Occupancy detection (people tracking
- people counting)
- Lawn mower
- Robotic lawn mower
- Humanoid
- Drone payload control
- Air purifier & humidifier
- Analog security camera
- IP network camera
- Wireless security camera