Intersil ISL98611AII-EVZ

2,5 В ~ 5 В

Overview

The ISL98611AIIZ-T is a high efficiency display power supply and LED driver for small size displays such as smart phones. It integrates a boost regulator, LDO, and inverting charge pump that are used to generate two output rails for the display power: +5V (default) and -5V (default). It also integrates a boost regulator and 3-channel current sinks for the LED backlight driver. The ±5V output voltages can be adjusted from ±4.5V up to ±6V.The ISL98611AIIZ-T extends the battery life of mobile devices by delivering greater than 87% efficiency for the display power function. For a backlight driver ISL98611AIIZ-T uses nonsynchronous rectification and by using a 3-channel topology ISL98611AIIZ-T provides more than 90% efficiency. ISL98611AIIZ-T integrates all compensation and feedback components, which minimizes BOM count and reduces the solution PCB size.This product drives backlight LEDs with excellent current matching even at very low LED current (±2.2% down to 1mA), improving the brightness uniformity of LCD displays. It includes analog, PWM and hybrid dimming to maximize LED efficiency while eliminating color shift issues.The ISL98611AIIZ-T is offered in a 2.33x2.61mm2 WLCSP package, and the device is specified for operation across the -40°C to +85°C ambient temperature range.

Features