NJW4610 Datasheet, PDF (1/1 Pages) New Japan Radio – Constant Current Type White LED Driver for Backlight

Constant Current Type White LED Driver
U.D.
for Backlight
NJW4610
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJW4610 is a high efficiency multiple strings white
LED driver for back light. This device is composed with
2 channel constant current drivers and can drive up to
16pcs. LED.
Each constant current driver is able to supply maximum
of 120mA per channel, and the driver interval is
performed by high precision current control of ±2% typ.
NJW4610RB1
■ FEATURES
▪ Constant Current Driver : 10mA ~ 120mA
▪ LED Current Control
: ±2% ( typ. )
▪ LED driver Rating Voltage : 40V
▪ Operating Voltage
: 4.5V ~ 5.5V
▪ LED Open / Short Protection
▪ FAULT Signal Output
▪ Luminance Control with PWM
▪ Under Voltage Lock Out Circuit ( UVLO )
▪ Thermal Shutdown Protection
▪ Package
: TVSP8
■ BLOCK DIAGRAM
FLT
PWM
EN
LED Open/Short
Protection
TSD
Current
Setting
VDD
UVLO
Current
Sink
VLED
LED1
LED1
LED2
LED2
GND
ISET FBC IGND
　　　　　　　　　 Ver.2010/09/03