IS32BL3554 Datasheet - ISSI

IS32BL3554, BOOST TYPE LED DRIVER

IS32BL3554 BOOST TYPE LED DRIVER WITH 4-CHANNEL CURRENT SOURCE Preliminary Information July 2014 GENERAL .
The IS32BL3554 is a white LED driver for backlight applications based on a highly efficient boost controller operating over a wide input voltage range.

Features

* to prevent damage during fault conditions. Protection features include an internal soft-start circuit to prevent a high inrush current during startup, open/short LED protection to automatically disable a faulty current source, over temperature protection (OTP), cycle-by-cycle current limit, under vo

Applications

* based on a highly efficient boost controller operating over a wide input voltage range of 4.5V to 33V. The IS32BL3554 contains four regulated current sources with 1.5% (Typ. ) current matching between strings for a uniform LED brightness. Each current source can be programmed via an external resistor

IS32BL3554-ISSI.pdf