KTZ8850 1-Channel LED Driver plus 2-Channel LCD Panel Bias

Features

Wide input range: 3.0V~5.5V
High efficiency step-up LED driver with dual output regulator for LCD bias power
Drive up to 10 series LEDs or 2 parallel strings of 8 series LEDs
Backlight efficiency: up to 86%
Highly integrated 40V Power MOSFET
Flexible dimming control
- 256-step I²C Controlled or
- High resolution PWM from 5kHz to 100kHz
High accuracy across full load range
Programmable LED open-circuit (OVP)/Short protection
Low 200mV feedback voltage
1MHz High switching frequency
Internal over voltage protection (default 36V)
Programmable dual Bias output regulator based on single inductor solution
Charge pump PFM mode at light load
LCD Bias efficiency up to 90%
Wide dual output voltage range: +/-4.0V to +/-6.3V (100mV/step)
Typ. 2% output voltage accuracy
Maximum peak output current up to 80mA
Active output discharge function
Low quiescent current
Cycle-by-cycle inductor current limit
1 µA shutdown current
Pb-free Packages: WLCSP-18
-40°C to +85°C Temperature Range

Vin(Min)	Vin(Max)	Number of LEDs/Channel	Channels	Control Type	Package
3V	5.5V	10, 8	1/2	I²C	WLCSP-18 2.47 x 1.27

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