Constant Current LED Driver
NJW4617
Constant Current LED Driver with PWM Control
GENERAL DESCRIPTION
The NJW4617 is a constant current LED Driver ...
Description
NJW4617
Constant Current LED Driver with PWM Control
GENERAL DESCRIPTION
The NJW4617 is a constant current LED Driver with PWM control. 45V resisting constant current control and PWM control circuit can be offered with small package. It can achieve luminance control multiple white or blue and red LEDs. It can contribute to the reliability improvement of the system because it has an overcurrent protection and thermal shutdown circuit.
PACKAGE OUTLINE
NJW4617DL3 (TO-252-5)
FEATURES
Operating Voltage Range
2.5V to 40V
Recommended LED Drive Voltage VLED=40V(max.)
LED Output Current
ILED=500mA(max.)
Output Current Accuracy
±2.0%
To 11 of White LED can be operated. (at LED Vf=3.4V)
Current Consumption
450µA typ.
With PWM Luminance Control and ON/OFF Control
Internal Over Current Protection Circuit
Internal Thermal Shutdown Circuit
Package
TO-252-5
BLOCK DIAGRAM
VDD
LED
VREF ( 0.2V )
Current Limit TSD
LED OVP Standby Timer
GND
Control Logic
EN/PWM
RS
PIN CO...
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