Description
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
Applications
- Smartphone
- Tablet Backlight
- Netbook/Notebook Backlight
- PDA/GPS Backlight; Portable Media Player
Key Electrical Specifications
| 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 |
Typical Application Diagram
Reviews
There are no reviews yet.