LM3405 Overview
The LM3405 is a 1-A constant current buck LED driver designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.205-V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as required for driving various types of LEDs. Switching frequency is internally set to 1.6 MHz, allowing small surface mount inductors and capacitors to be used.
LM3405 Key Features
- 1 VIN Operating Range of 3 V to 15 V
- Drives up to 5 High-Brightness LEDs in Series at
- Thin SOT-6 Package
- 1.6-MHz Switching Frequency
- 300-mΩ NMOS Switch
- 40-nA Shutdown Current at VIN = 5 V
- Internally pensated Current-mode Control
- Cycle-by-Cycle Current Limit
- Input Voltage UVLO
- Overcurrent Protection
