NJW4600 NJRC [New Japan Radio], NJW4600 Datasheet
NJW4600
Manufacturer Part Number
NJW4600
Description
White LED Driver for Backlight
Manufacturer
NJRC [New Japan Radio]
Datasheet
1.NJW4600.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
NJW4600VT(TE2)
Manufacturer:
JRC
Quantity:
20 000
Ver.2010/09/03
■ GENERAL DESCRIPTION
LED driver for back light.This device is composed with
4channel constant current drivers and step up switching
regulator, and can drive up to 32pcs. LED.
of 120mA per channel, and the driver interval is
performed by highly precise current control of ±2% typ.
PWM signal input, and also features selectable switching
frequency of 800kHz or 1MHz.
terminal sends out signals notifying the abnormality to the
control departments, such as CPU.
range from 6V to 35V, and operating temperature is up to
105ºC. This very wide operating temperature range
makes the IC ideal for medium sized LCD backlights,
such as car navigations, note PC, and applications for
amusement device.
The NJW4600 is a high efficiency multiple strings white
Each constant current driver is able to supply maximum
The NJW4600 can control luminance up to 100 : 4 by
When abnormal LED lighting occurs, the FAULT
The NJW4600 operates over a wide supply voltage
White LED Driver for Backlight
■ PACKAGE OUTLINE
■ FEATURE
▪ Constant Current Driver : 10mA ~ 120mA
▪ LED Current Control
▪ Operating Voltage
▪ Switching Frequency
▪ LED Open / Short Protection
▪ FAULT Signal Output
▪ Luminance Control with PWM
▪ Internal Soft Start
▪ Under Voltage Lock Out Circuit ( UVLO )
▪ Built in Over Voltage Protection
▪ Built in Over Current Protection
▪ Built in Thermal Shutdown Protection
▪ Package
NJW4600V
: 6V ~ 35V
: NJW4600V
: ±2% ( typ. )
: 800kHz / 1MHz
NJW4600KT1
NJW4600KT1 QFN-24
NJW4600
SSOP-32
1
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NJW4600 Summary of contents
Page 1
... Each constant current driver is able to supply maximum of 120mA per channel, and the driver interval is performed by highly precise current control of ±2% typ. The NJW4600 can control luminance up to 100 : 4 by PWM signal input, and also features selectable switching frequency of 800kHz or 1MHz. When abnormal LED lighting occurs, the FAULT terminal sends out signals notifying the abnormality to the control departments, such as CPU ...
Page 2
... Current Control Sink Current Setting AGND FBO FBI ISET IGND R NF3 R R FBI ISET Set up for LED Current 10mA to120mA NJW4600 Thermal Shut Down Over Current Protection Over Voltage Protection OUT EXT OVP CS LED1 LED2 LED3 LED4 Constant Current with ...