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High Efficiency Display Power and LED Driver for Smart Phones

封装信息

Lead Count (#) 30
Pkg. Code WFA
Pitch (mm) 0.02
Pkg. Type WLCSP-BP
Pkg. Dimensions (mm) 2.61 x 2.33 x 0.01

环境和出口类别

Pb (Lead) Free No
ECCN (US) EAR99
Moisture Sensitivity Level (MSL)
HTS (US)

产品属性

Lead Count (#) 30
Carrier Type Reel
Pb (Lead) Free No
Temp. Range -40 to +85°C
Advanced Features >88% efficiency with 12mA load between VP and VN, Up to 93% efficient LED driver, Can drive 2 or 3 strings of LEDs, 2.5V to 5V input voltage range, I<sup>2</sup>C adjustable output voltages and settings
Boost Current Limit (A) 1.6
Input Voltage (Max) (V) 5
Input Voltage (Min) (V) 2.5
Input Voltage Range (V) 2.5 - 5
Length (mm) 2.6
Logic Voltage (Max) 5.5
Logic Voltage (Min) 1.1
MOQ 3000
Off Voltage (Min) (V) -6
On Voltage (Max) (V) 6 - 6
On Voltage Range (V) 4.5 - 6
Pitch (mm) 0
Pkg. Dimensions (mm) 2.6 x 2.3 x 0.01
Pkg. Type WLCSP-BP
Qualification Level Standard
Thickness (mm) 0.01
VBOOST (V) 4.6 - 6.3
VLOGIC 1.1 to 5.5
VOFF/VN -4.5 to -6
Width (mm) 2.3

描述

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 ±4. 5V up to ±6V. 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. This product drives backlight LEDs with excellent current matching even at very low LED current (±2. 2% down to 1mA and ±2. 8% at 50μA), improving the brightness uniformity of LCD displays. It includes analog, PWM, and hybrid dimming to maximize LED efficiency while eliminating color shift issues. The ISL98611 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.