LED Driver. NJW4615 Datasheet

NJW4615 Driver. Datasheet pdf. Equivalent

NJW4615 Datasheet
Recommendation NJW4615 Datasheet
Part NJW4615
Description Constant Current LED Driver
Feature NJW4615; NJW4615 Constant Current LED Driver with PWM Control GENERAL DESCRIPTION The NJW4615 is a constant.
Manufacture New Japan Radio
Datasheet
Download NJW4615 Datasheet




New Japan Radio NJW4615
NJW4615
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.It can contribute to the reliability improvement of the system
because it has an overcurrent protection and thermal shutdown
circuit.
The NJW4615 is suit for an amusement, home audio,etc.
FEATURES
Operating Voltage Range
2.5V to 5.5V
LED Drive Voltage
LED Output Current
VLED= 35V(max.)
100mA(max.)
Current consumption
200µA
Output current accuracy
±1.2%
To 8 of White LED can be operated.
With PWM Luminance Control
Internal overcurrent protection circuit
Internal thermal shutdown circuit
Package
SOT-23-6
„ PACKAGE OUTLINE
NJW4615F1
„ BLOCK DIAGRAM
VDD
VREF
(0.2V)
Current Limit
Thermal Shut Down
Control
Logic
LED
RS
GND
EN
„ PIN CONFIGRATION
6 54
NJW4615
1 23
PW M
1 : PWM
2 : GND
3 : RS
4 : LED
5 : EN
6 : VDD
Ver.2010-12-27
-1-



New Japan Radio NJW4615
NJW4615
ABABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETERS
SYMBOL
RATINGS
UNIT
VDD Power Supply
Output voltage
Output Current
PWM Terminals Voltage
EN Terminals Voltage
Power Consumption
Junction Temperature
Operating Temperature
VDD
VLED
ILED
VPWM
VEN
PD
Tj
Topr
-0.3 to +6.0
-0.3 to +40
100
+6.0 (*1)
+6.0 (*1)
510 (*2)
-40 to +150
-40 to +85
V
V
mA
V
V
mW
°C
°C
Storage Temperature
Tstg
-40 to +150
°C
(*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)
RECOMMENDED OPERATING CONDITIONS
PARAMETERS SYMBOL
CONDITIONS
Operating voltage
Output voltage
VDD
VLED
(Ta=25°C)
MIN TYP MAX Unit
2.5 - 5.5 V
- - 35 V
„ ELECTRICAL CHARACTERISTICS
(Unless otherwise noted, VDD=3.0V, VLED=1.0V, RS=10, VEN=VPWM=VDD, Ta=25°C)
PARAMETERS
SYMBOL
CONDITIONS
Operating Current
Operating Current at OFF state
Output Current Accuracy
Output Terminal Leak Current
Output Terminal Leak Current 2
EN Terminal ON Voltage
EN Terminal OFF Voltage
PWM Terminal ON Voltage
PWM Terminal OFF Voltage
EN Terminal Input Current
PWM Terminal Input Current
RS Terminal Leak Current
PWM Terminal ON Delay Time
PWM Terminal OFF Delay Time
Maximum Output Current
IDD
IDD_OFF
ILED
ILEAK1
ILEAK2
VEN_ON
VEN_OFF
VPWM_ON
VPWM_OFF
IEN
IPWM
ILEAK_RS
tPWM_ON
tPWM_OFF
ILED_MAX
VEN=GND
VEN=GND, VDD =5.5V, VLED =35V
VPWM=GND VDD =5.5V, VLED =35V
ILED=OFFON
ILED=ONOFF
ILED=OFFON
ILED=ONOFF
VEN=GND, VRS = VLED =3V
VPWM=L H
VPWM=H L
RS =0
MIN
-
-
-1.2
-
-
1.6
0
0.7VDD
0
-
-
-
-
-
100
TYP
200
-
-
-
-
-
-
-
-
-
-
-
3
1
170
MAX
320
0.1
+1.2
0.1
0.1
VDD
0.3
VDD
0.3VDD
0.1
0.1
0.1
-
-
-
Unit
µA
µA
%
µA
µA
V
V
V
V
µA
µA
µA
µs
µs
mA
-2-
Ver.2010-12-27



New Japan Radio NJW4615
TYPICAL APPLICATION
VDD
VDD
V REF
(0.2V)
Current Limit
ThermalShutDown
Control
Logic
NJW4615
VLED
LED
LED
Output current wave form at PWM control
I LED
0
I LED
Rs
R S :Current sense resistance
GND
EN
PWM
PWM control signal
The Rs Resistance Setting formula :
RS
=
0.2(V )
ILED
Ver.2010-12-27
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including the
industrial rights.
-3-







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