(PDF) NJW4617 Datasheet - Constant Current LED Driver

Número de pieza	NJW4617
Descripción	Constant Current LED Driver
Fabricantes	New Japan Radio
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No Preview Available ! 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 CONFIGRATION 1: VDD 2: EN/PWM 3: GND 4: RS 5: LED 1 2345 * Please note that this device is still under the development and therefore the specifications are subject to change. Ver.2013-09-24 -1- 1 page

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PDF NJW4617 Data sheet ( Hoja de datos )