© Semiconductor Components Industries, LLC, 2013
October, 2013 − Rev. 1
1 Publication Order Number:
NCS29001/D
NCS29001
LED Backlight Driver
The NCS29001 is an integrated LED driver used in LCD display
backlighting applications. A configurable bill of materials allows the
designer to create a highly efficient solution for a variety of LCD
screen sizes. The NCS29001 uses a boost type converter to deliver
constant current in a string of LEDs. High accuracy PWM dimming is
supported for a frequency up to 500 Hz . The integrated soft start
function provides excellent control during the power up sequence to
avoid current overshoot. The device protects against output
overvoltage, open / short LED, and thermal overload. The NCS29001
is offered in the cost effective SOIC−14 package.
Features
• 8.5 V to 18 V Input Voltage Range
• ±1% Vref Voltage Accuracy to set LED Current
• PWM Controlled Dimming
• Soft Start Limits In−Rush Current
• Open Feedback Protection
• Open LED Protection
• Short LED Protection
• LED String Cathode Short to ground Protection
• Max Duty Cycle Above 90%
• SOIC−14 Package
• This is a Pb−Free Device
Typical Application
• TFT−LCD TV Panels
• LCD Monitor Panels
MARKING
DIAGRAM
http://onsemi.com
See detailed ordering and shipping information on page 15 of
this data sheet.
ORDERING INFORMATION
1
14
SOIC−14 NB
CASE 751A
NCS29001G
AWLYWW
1
14
NCS29001= Specific Device Code
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
14
13
12
11
10
9
8
1
2
3
4
5
6
7
VIN
GATE
PIN CONNECTIONS
Vref
GND
PWMin
RT
FBP
STBY
CS
PGND
PWMout
FBN
COMP
OVP
NCS29001
