LT LT3598EFE#PBF

Регулятор постоянного тока DC3.2V30V30 мА

Overview

The LT3598EFE is a fixed frequency step-up DC/DC converter designed to drive up to six strings of LEDs at an output voltage up to 44V. LED dimming can be achieved with analog dimming on the CTRL pin, and with pulse width modulation dimming on the PWM pin. The LT3598EFE accurately regulates LED current even when the input voltage is higher than the LED output voltage. The switching frequency is programmable from 200kHz to 2.5MHz through an external resistor.

Additional features include programmable overvoltage protection, switching frequency synchronization to an external clock, LED current derating based on junction temperature and/or LED temperature, LED string disable control, OPENLED alert pin and output voltage limiting when all LED strings are disconnected. The LT3598EFE is available in a thermally enhanced 24-lead (4mm × 4mm) QFN and 24-lead TSSOP packages.

Features

True Color PWM™ Series
Available in the 24-TSSOP (0.173, 4.40mm Width) Exposed Pad package
Operating temperature of -40°C~125°C TJ
Frequency of 200kHz~2.5MHz
Supply voltage of 5V
Switching frequency of 2.5MHz

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT3598EFE#PBF LED Driver ICs applications.

• 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
• Industrial LED Lighting: Image Recognition Devices