Tiny LED Driver Reference Design
Description
This reference design contains a unique LED Driver to be supplied out of a single or a dual cell lithium ion battery. The circuit in SEPIC topology accepts input voltages as low as 1.8V to 8.4V. The TPS43000 was chosen for handling low input voltages. Current regulation is provided with a shunt resistor and operational amplifier (TLV6001U) circuit.
Features
- Works with an input voltage range of 1.8V to 8.4VReasonable efficiencyFor LED with 0.8A current and about 3.3V output voltageTotal board size is 47mm x 47mmThe design is built and tested
Applications
Product Categories
- Power management