IS31LT3948 PFM MODE BOOST LED DRIVER

Lumissil

Description

IS31LT3948 PFM MODE BOOST LED DRIVER WITH THE EXTERNAL NMOS February 2015 GENERAL .
The IS31LT3948 is a PFM step-up DC-DC converter designed for driving the white LED arrays for large size LCD panel backlighting applications.

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Datasheet Specifications

Part number: IS31LT3948
Manufacturer: Lumissil
File Size: 500.61 KB
Datasheet: IS31LT3948-Lumissil.pdf
Description: PFM MODE BOOST LED DRIVER

Features

* external PWM dimming, which allows the flexible control of the back-lighting luminance. The IS31LT3948 has a wide input voltage range from 5V to 100V (Note). An integrated OVP circuit protects the chip and the system even under no-load conditions. The chip is assembled in SOP-8 package. It operates

Applications

* It can deliver stable constant output current from a few milliamps up to 2A, programmed via an external resistor. The IS31LT3948 utilizes a control scheme in which the output is automatically adjusted to the optimum output voltage for the system, maximizing the efficiency. Furthermore, the control

IS31LT3948 Distributors

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IS31LT3948 PFM MODE BOOST LED DRIVER Lumissil

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