Datasheet Details
- Part number
- IS32LT3957A
- Manufacturer
- Lumissil
- File Size
- 616.21 KB
- Datasheet
- IS32LT3957A-Lumissil.pdf
- Description
- HIGH VOLTAGE LED LIGHTING CONTROLLER
IS32LT3957A Description
IS32LT3957A HIGH VOLTAGE LED LIGHTING CONTROLLER WITH FAULT PROTECTION March 2020 GENERAL .
The IS32LT3957A is a current mode PWM controller designed to drive a low side external NMOS FET for wide input/output voltage range and high LED curre.
IS32LT3957A Features
* Wide high voltage input range: 5V to 75V
* Supports boost, buck-boost, SEPIC and buck
topology
* ±3.5% output current accuracy over -40°C ~
+125°C temperature
* Adjustable operating frequency range of
100kHz~1MHz
* Programmable soft start to avoid inrush current
* Fixed und
IS32LT3957A Applications
* An external resistor senses the high side output current of the LED string. A high side sense is the most flexible current sensing scheme, since it functions in either boost or buck-boost mode configurations. The controller can be configured with an external resistor to operate between 100kHz~1MHz
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