IS32BL3552
IS32BL3552 is BOOST TYPE LED DRIVER manufactured by ISSI.
BOOST TYPE LED DRIVER WITH 2-CHANNEL CURRENT SOURCE
Preliminary Information August 2014
GENERAL DESCRIPTION
The IS32BL3552 is a white LED driver for backlight applications based on a highly efficient boost controller operating over a wide input voltage range of 4.5V to 33V.
The IS32BL3552 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 to drive from 40mA to 360mA. A fast slew rate current source allows high frequency and narrow pulse width dimming signals to achieve a very high contrast ratio. The device operating frequency can be adjusted...
