TITPS61165DBVR
Overview
The TPS61165DBVR is a high-performance boost LED driver designed to power up to 10 LEDs in series from a single Li-Ion battery. Operating at a fixed 1.2MHz switching frequency, it integrates a 1.2A, 40V MOSFET to provide a compact solution for backlighting and general LED illumination. It supports two dimming methods: standard PWM signal input or the EasyScale one-wire digital interface.
Why Choose This Part
The device features a very low 200mV feedback voltage which minimizes power dissipation in the current sense resistor, boosting overall efficiency up to 90 percent. Its high 1.2MHz switching frequency allows for the use of small external inductors and capacitors, while integrated 38V open LED protection prevents device failure if a string is disconnected.
Applications
Key Specifications
Getting Started
To evaluate this driver, engineers typically use the TPS61165EVM-283 evaluation module. When designing the PCB, place the input filter capacitor and the output capacitor as close as possible to the IC pins to minimize high-frequency switching noise. Ensure the sense resistor is connected to a clean analog ground path for accurate current regulation.
