njw4615 New Japan Radio Co.,Ltd, njw4615 Datasheet

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njw4615

Manufacturer Part Number
njw4615
Description
Constant Current Led Driver With Pwm Control
Manufacturer
New Japan Radio Co.,Ltd
Datasheet
Ver.2010-12-27
resisting constant current control and PWM control circuit can be
offered with small package.
LEDs.It can contribute to the reliability improvement of the system
because it has an overcurrent protection and thermal shutdown
circuit.
GENERAL DESCRIPTION
FEATURES
The NJW4615 is a constant current LED with PWM control. 35V
It can achieve luminance control multiple white or blue and red
The NJW4615 is suit for an amusement, home audio,etc.
BLOCK DIAGRAM
PIN CONFIGRATION
Operating Voltage Range
LED Drive Voltage
LED Output Current
Current consumption
Output current accuracy
To 8 of White LED can be operated.
With PWM Luminance Control
Internal overcurrent protection circuit
Internal thermal shutdown circuit
Package
C urrent Lim it
T herm al Shut D own
6
1
NJW4615
G N D
V
VR EF
(0.2V)
DD
5
2
Constant Current LED Driver with PWM Control
4
3
EN
C ontrol
Logic
1 : PWM
2 : GND
3 : R
4 : LED
5 : EN
6 : V
PW M
2.5V to 5.5V
V
100mA(max.)
200µA
±1.2%
SOT-23-6
DD
S
LED
= 35V(max.)
LED
R
S
PACKAGE OUTLINE
NJW4615F1
NJW4615
- 1 -

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njw4615 Summary of contents

Page 1

... Constant Current LED Driver with PWM Control GENERAL DESCRIPTION The NJW4615 is a constant current LED with PWM control. 35V 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 ...

Page 2

... NJW4615 ABABSOLUTE MAXIMUM RATINGS PARAMETERS VDD Power Supply Output voltage Output Current PWM Terminals Voltage EN Terminals Voltage Power Consumption Junction Temperature Operating Temperature Storage Temperature (*1): When input voltage is less than +6V, the absolute maximum control voltage is equal to the input voltage. (*2): Mounted on glass epoxy board based on EIA/JEDEC. (76.2 x 114.3 x 1.6mm : 2Layers) ...

Page 3

... TYPICAL APPLICATION V DD (0.2V) Current Limit ThermalShutDown GND Ver.2010-12- REF Control Logic EN PWM PWM control signal The Rs Resistance Setting formula : NJW4615 V LED Output current wave form at PWM control LED I LED 0 I LED LED Rs R :Current sense resistance LED ...

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