DATASHEET
To request the full datasheet, please visit www.intersil.com/products/isl98611 ISL98611 FN8662
Rev.4.00
Sep 13, 2017 High Efficiency Display Power and LED Driver for Smart Phones
The ISL98611 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 regulated positive and negative
voltages for display power. It also integrates a boost regulator
and 3-channel current sinks for the LED backlight driver. The
positive and negative output voltages can be adjusted from
В±4.5V up to В±6V. Features The ISL98611 extends the battery life of mobile devices by
delivering greater than 88% efficiency for the display power
function and up to 93% efficiency for the backlight driver when
powering 12 LEDs. It reduces the PCB area by integrating the
two functions into a single IC and by requiring only eight
external components in total. Only 8 external components; integrated compensation and
feedback circuits Display power output voltage: В±5V, В±5.6V Positive and negative voltages can be programmed from
В±4.5V to В±6V >88% efficiency with 12mA load between VP and VN Up to 93% efficient LED driver Analog, PWM, and hybrid dimming В±2.2% current matching down to 1mA and В±2.8% at 50ОјA Can drive 2 strings of LEDs This product drives backlight LEDs with excellent current
matching even at very low LED current (В±2.2% down to 1mA
and В±2.8% at 50ОјA), improving the brightness uniformity of
LCD displays. It includes analog, PWM, and hybrid dimming to
maximize LED efficiency while eliminating color shift issues. 10-bit linear and 11-bit logarithmic DC output current …
