NSI45020JZ, NSV45020JZ
Adjustable Constant Current
Regulator & LED Driver
45 V, 20 − 40 mA + 15%, 1.5 W Package
The adjustable 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.
http://onsemi.com
I
= 20 − 40 mA
reg(SS)
@ Vak = 7.5 V
Anode
1
The CCR turns on immediately and is at 20% of regulation with
only 0.5 V Vak. The R pin allows I
to be adjusted to higher
adj
reg(SS)
currents by attaching a resistor between R (Pin 3) and the Cathode
adj
(Pin 4). The R pin can also be left open (No Connect) if no
3
R
adj
adjustment is required. 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. This device is
available in a thermally robust package and is qualified to stringent
AEC−Q101 standard, which is lead-free RoHS compliant and uses
halogen-free molding compound, and UL94−V0 certified.
adj
2/4
Cathode
SOT−223
CASE 318E
STYLE 2
Features
• Robust Power Package: 1.5 Watts
• Adjustable up to 40 mA
• Wide Operating Voltage Range
• Immediate Turn-On
MARKING DIAGRAM
C
• Voltage Surge Suppressing − Protecting LEDs
• AEC−Q101 Qualified and PPAP Capable, UL94−V0 Certified
• SBT (Self−Biased Transistor) Technology
• Negative Temperature Coefficient
• Eliminates Additional Regulation
AYW
AAJG
G
1
R
A
C
adj
• 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
A
Y
= Assembly Location
= Year
= Work Week
= Specific Device Code
= Pb−Free Package
W
AAJ
G
(Note: Microdot may be in either location)
Applications
• Automobile: Chevron Side Mirror Markers, Cluster, Display &
Instrument Backlighting, CHMSL, Map Light
• AC Lighting Panels, Display Signage, Decorative Lighting, Channel
Lettering
ORDERING INFORMATION
†
Device
Package
Shipping
NSI45020JZT1G
SOT−223 1000/Tape & Reel
(Pb−Free)
• Switch Contact Wetting
NSV45020JZT1G
SOT−223 1000/Tape & Reel
(Pb−Free)
• Application Note AND8349/D − Automotive CHMSL
• Application Note AND8391/D − Power Dissipation Considerations
†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, 2013
1
Publication Order Number:
July, 2013 − Rev. 2
NSI45020JZ/D