34844
34844 is 10 Channel LED Backlight Driver manufactured by NXP Semiconductors.
features
LED overtemperature protection, LED short protection, and LED open circuit protection. The IC includes overvoltage protection, overcurrent protection, and undervoltage lockout.
LED DRIVER
EP SUFFIX (PB-FREE) 98ASA10800D 32-PIN QFN-EP
Applications
- Monitors and HDTV
- up to 42 inch
- Personal puter Notebooks
- GPS Screens
- Small screen Televisions
Features
- Input voltage of 7.0 to 28 V
- 2.5 A integrated boost FET
- Up to 80 m A on the 34844 LED current per channel
- 90% efficiency (DC:DC)
- I2C/SM Bus interface
- 10 channel current mirror with ±2.0% current matching
- Boost output voltage up to 60V, with Dynamic Headroom Control (DHC)
- PWM frequency programmable or synchronizable from 110 to 27,000 Hz
- 32-Ld 5x5x1.0 mm TQFN Package
© Freescale Semiconductor, Inc., 2009-2014. All rights reserved.
7.0 to 28 V
Control Unit
VDC1
VDC1
VDC1
VIN VDC1 VDC2
VDC3
SWA SWB
VOUT
P SLOPE
PGNDA PGNDB
SCK SDA PWM
A0/SEN CK
M/~S EN ISET
PIN NIN
FAIL
I0 I1 I2 I3 I4 I5 I6 I7 I8...