LP8556 driver equivalent, high-efficiency led backlight driver.
*1 High-efficiency DC/DC boost converter with integrated 0.19-Ω power MOSFET and three switching frequency options: 312 kHz, 625 kHz, and 1250 kHz
* 2.7-V to 36-V.
LED backlights for tablet LCDs space
Simplified Schematic
2.7V - 20V VIN
CIN
7V ± 43V
L1
D1
1.1 ” 9OUT / VIN ” 15
.
The LP8556 device is a white-LED driver featuring an asynchronous boost converter and six high precision current sinks that can be controlled by a PWM signal or an I2C master.
The boost converter uses adaptive output voltage control for setting the o.
Image gallery
TAGS
Download (Size : 1.24MB)