ADI LT3796HFE-1#PBF

DC DC 控制器6V100V

Overview

The LT3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for several LED protection features, and also allow the converter to operate as a constant-voltage source. The LT3796/LT3796-1 feature a programmable threshold output current sense amplifier with rail-to-rail common mode range. A separate high side amplifier is gain configurable with two resistors and can be used to regulate a second current or a voltage in combination with one of the FB pins. The PWM input provides LED dimming ratios of up to 3000:1.

The LT3796-1 is optimized for a second output current regulation loop that can be enabled/disabled with a PMOS switch, either to drive a second LED string or to extend analog dimming range.

Features

True Color PWM™ Series
Available in the 28-TSSOP (0.173, 4.40mm Width) Exposed Pad package
Operating temperature of -40°C~150°C TJ
Frequency of 100kHz~1MHz
Output voltage of 7.7V

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT3796HFE-1#PBF LED Driver ICs applications.

• Gallery lighting
• Museum lighting
• High-end retail lighting
• Medical surgery lighting
• Replacement lamps
• Panel lighting
• Down lights
• Linear fluorescent
• A- lamps
• General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights