NJU6048F-TE1# NJR, NJU6048F-TE1# Datasheet

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NJU6048F-TE1#

Manufacturer Part Number
NJU6048F-TE1#
Description
IC LED DRVR WHITE BCKLGT SOT23-5
Manufacturer
NJR
Type
Backlight, White LEDr
Datasheet

Specifications of NJU6048F-TE1#

Constant Current
Yes
Topology
PWM, Step-Up (Boost)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
General Purpose
Type - Secondary
White LED
Voltage - Supply
1.7 V ~ 6.5 V
Voltage - Output
18V
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
20mA
Internal Switch(s)
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency
-
Efficiency
-
Other names
NJU#6048F-TE1
NJU#6048F-TE1

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NJU6048F-TE1#NJU6048F-TE1
Manufacturer:
JRC
Quantity:
20 000
Company:
Part Number:
NJU6048F-TE1#NJU6048F-TE1
Quantity:
2 500
! GENERAL DESCRIPTION
contains a high-efficiency step-up DC/DC converter and an
output driver. The IC can output max.18V and drive as many
as 4 white LEDs in series with a constant current, which
guarantees the LEDs with uniform brightness.
use of small, low-profile inductors and capacitors to
minimize the footprint in space-conscious applications. The
NJU6048 also features low operating voltage of 1.7V and the
small package SOT-23 (MTP-5).
battery-powered portable applications such as cellular phones,
camcorders, PDAs, etc.
! FEATURES
! PIN CONFIGURATION (TOP VIEW)
Ver.2005-06-09
#
#
#
#
#
#
#
The NJU6048 is a high-efficiency white LED driver. It
The high frequency of the step-up converter permits the
All of these benefits make the NJU6048 suitable for the
Drives Up to 4White LEDs in Series
Uses Small Inductor and Capacitors
1.7V to 6.5V Operating Voltage for Step-up Circuits (V
Low Switch R
OVP Function
CMOS Technology
Package
SW
V
FB
SS
1
2
3
DS
I
V
: SOT-23 5 pin (MTP-5)
(ON)
OUT
SW
= 20mA(typical)
= 18V, R
High Efficiency White LED Driver
5
4
DS
V
OVP
=0.8 (I
DD
SW
=150mA)
DD
)
! PACKAGE OUTLINE
NJU6048F
PRELIMINARY
NJU6048
- 1 -

Related parts for NJU6048F-TE1#

NJU6048F-TE1# Summary of contents

Page 1

... Drives Up to 4White LEDs in Series I = 20mA(typical) OUT # Uses Small Inductor and Capacitors # 1.7V to 6.5V Operating Voltage for Step-up Circuits (V # Low Switch R (ON 18V OVP Function # CMOS Technology # Package : SOT-23 5 pin (MTP-5) ! PIN CONFIGURATION (TOP VIEW Ver.2005-06- =0.8 (I =150mA OVP NJU6048 PRELIMINARY ! PACKAGE OUTLINE NJU6048F - 1 - ...

Page 2

NJU6048 ! PIN DESCRIPTIONS No. SYMBOL OVP BLOCK DIAGRAM Bias Bias - 2 - TYPE Input Switch Terminal ...

Page 3

FUNCTIONAL DESCRIPTONS (1) LED Current Control and Resistor R The NJU6048 incorporates the LED current control to regulate the LED current (I by the feedback resistor (R ) connected between the FB and the V LED V is internally ...

Page 4

NJU6048 ! ABSOLUTE MAXIMUMN RATINGS PARAMETERS SYMBOL V Power Supply V DD OVP Terminal to GND V SW Terminal Voltage V FB Terminal Voltage V Power Dissipation PD Operating Temperature T Storage Temperature T Note1) All voltages are relative to ...

Page 5

TEST CIRCUITS OVP Threshold Voltage V IN 4.7uF GND Quiescent Current 4.7uF GND Ver.2005-06- OVP NJU6048 OVP NJU6048 NJU6048 0.3V ...

Page 6

NJU6048 FB Comparator Trip point In stepping down V from 300mV GND Switch Off Time V IN 4.7uF GND - the threshold voltage to begin switching operation. FBP V DD NJU6048 4.7uF V ...

Page 7

Switch Current Limit / Switch 4.7uF GND Switch Leakage Current V IN GND Ver.2005-06-09 (ON NJU6048 NJU6048 4.7uF V SS NJU6048 V A OVP FB 18V A SW OVP ...

Page 8

NJU6048 ! TYPICAL PERFORMANCE Efficiency vs. Output Current SW RDS_on vs. Input Voltage Current Limit vs. Input Voltage - =3.6V, V =0V, L=10 H, Ta= Efficiency vs. Input Voltage SW RDS_on vs. Temperature Current ...

Page 9

OVP Trigger Threshold vs. Input Voltage OVP Release Threshold vs. Input Voltage LED Current vs. Input Voltage Ver.2005-06-09 NJU6048 (V =3.6V, V =0V, L=10 H, Ta= OVP Trigger Threshold vs. Temperature OVP Release Threshold vs. Temperature LED ...

Page 10

NJU6048 PWM Dimming Inrush Current Waveform - =3.6V, V =0V, L=10 H, Ta= OVP Waveform Ver.2005-06-09 ...

Page 11

... L1 Inductor D1 Schottky Diode C1 Ceramic Capacitor C2 Ceramic Capacitor R 1 Chip Resistor LED LED1 to 4 White LED Ver.2005-06- OVP Supplier / Parts Number NJRC / NJU6048 Murata / LQH32CN100K23 On Semiconductor / MBR0530 Murata / GRM21BF11A475Z Taiyo Yuden / TMK325BJ105MD Standard Nichia / NSCW215T NJU6048 V OUT C2 FB Qty 4.7uF/10V LED Value ...

Page 12

... R 2 Chip Resistor LED R2 Chip Resistor R3 Chip Resistor R4 Chip Resistor LED1 to 4 White LED - OVP 3V(V ) BIAS PWM Input Supplier / Parts Number NJRC / NJU6048 Murata / LQH32CN100K23 On Semiconductor / MBR0530 Murata / GRM21BF11A475Z Taiyo Yuden / TMK325BJ105MD Standard Standard Standard Standard Nichia / NSCW215T V OUT Qty ...

Page 13

MEMO Ver.2005-06-09 NJU6048 [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 ...

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