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NSI45025T1G Datasheet

Constant Current Regulator & LED Driver

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NSI45025T1G
Constant Current Regulator
& LED Driver
45 V, 25 mA + 15%, 460 mW Package
The linear constant current regulator (CCR) is a simple, economical
and robust device designed to provide a cost−effective solution for
regulating current in LEDs (similar to Constant Current Diode, CCD).
The CCR is based on Self-Biased Transistor (SBT) technology and
regulates current over a wide voltage range. It is designed with a
negative temperature coefficient to protect LEDs from thermal
runaway at extreme voltages and currents.
The CCR turns on immediately and is at 25% of regulation with
only 0.5 V Vak. It requires no external components allowing it to be
designed as a high or low−side regulator. The high anode-cathode
voltage rating withstands surges common in Automotive, Industrial
and Commercial Signage applications. The CCR comes in thermally
robust packages and is qualified to be UL94−V0 certified.
Features
Robust Power Package: 460 mW
Wide Operating Voltage Range
Immediate Turn-On
Voltage Surge Suppressing − Protecting LEDs
SBT (Self−Biased Transistor) Technology
Negative Temperature Coefficient
NSV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q101
Qualified and PPAP Capable
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Automobile: Chevron Side Mirror Markers, Cluster, Display &
Instrument Backlighting, CHMSL, Map Light
AC Lighting Panels, Display Signage, Decorative Lighting, Channel
Lettering
Switch Contact Wetting
Application Note AND8391/D − Power Dissipation Considerations
Application Note AND8349/D − Automotive CHMSL
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Rating
Symbol
Value
Unit
Anode−Cathode Voltage
Vak Max
45
V
Reverse Voltage
Operating and Storage Junction
Temperature Range
VR
TJ, Tstg
500
−55 to +150
mV
°C
ESD Rating: Human Body Model
Machine Model
ESD
Class 1C
Class B
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
http://onsemi.com
Ireg(SS) = 25 mA
@ Vak = 7.5 V
Anode 2
Cathode 1
2
1
SOD−123
CASE 425
STYLE 1
MARKING DIAGRAM
AE M G
1 G2
AE = Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping
NSI45025T1G
SOD−123 3000 / Tape & Reel
(Pb−Free)
NSV45025T1G SOD−123 3000 / Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2014
June, 2014 − Rev. 5
1
Publication Order Number:
NSI45025/D


  ON Semiconductor Electronic Components Datasheet  

NSI45025T1G Datasheet

Constant Current Regulator & LED Driver

No Preview Available !

NSI45025T1G
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max Unit
Steady State Current @ Vak = 7.5 V (Note 1)
Voltage Overhead (Note 2)
Pulse Current @ Vak = 7.5 V (Note 3)
Capacitance @ Vak = 7.5 V (Note 4)
Ireg(SS)
Voverhead
Ireg(P)
C
21.25
24.4
25
1.8
29.4
2.5
28.75
34.5
mA
V
mA
pF
Capacitance @ Vak = 0 V (Note 4)
C 5.7 pF
1. Ireg(SS) steady state is the voltage (Vak) applied for a time duration 10 sec, using FR−4 @ 300 mm2 1 oz. Copper traces, in still air.
2. Voverhead = Vin − VLEDs. Voverhead is typical value for 80% Ireg(SS).
3. Ireg(P) non−repetitive pulse test. Pulse width t 300 msec.
4. f = 1 MHz, 0.02 V RMS.
Figure 1. CCR Voltage−Current Characteristic
http://onsemi.com
2


Part Number NSI45025T1G
Description Constant Current Regulator & LED Driver
Maker ON Semiconductor
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