LM3560TLE-20/NOPB

LED照明驱动器 LIGHTING DISPLAY IC

General Description

The LM3560 is a 2MHz fixed frequency synchronous boost converter with two 1000 mA constant current drivers for high current white LEDs. The dual high-side current sources allow for grounded cathode LED operation and can be tied together for providing flash currents at up to 2A through a single LED.

An adaptive regulation method ensures the current for each LED remains in regulation and maximizes efficiency.

Features

■ Dual High-Side Current Sources Allow for Grounded Cathode LED Operation

■ Accurate and Programmable LED Current from 31.25 mA to 2A

■ Independent LED Current Source Programmability

■ Up to 90% Efficient

■ Ultra-Small Solution Size: < 26 mm2

■ Four Operating Modes: Torch, Flash, Privacy Indicate, and Message Indicator

■ 4-bit ADC for VLED Monitoring

■ LED Thermal Sensing and Current Scale-Back

■ Hardware Flash and Torch Enable

■ Dual Synchronization Inputs for RF Power Amplifier Pulse Events

■ LED and Output Disconnect During Shutdown

■ Open and Short LED Detection

■ 400 kHz I2C-Compatible Interface

■ Active Low Hardware Reset

■ 16-Bump 1.97mm x 1.97mm x 0.6mm micro SMD

Applications

■ Camera Phone LED Flash

■ White LED Biasing