NSI45020A: LED Driver, Constant Current Regulator, 20 mA, 45 V

The linear constant current regulator 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 constant current regulator 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 constant current regulator 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 constant current regulator comes in thermally robust packages and is qualified to AEC-Q101 standard, and UL94-V0 certified.

Features

Robust Power Package: 460 mW, Wide operating voltage range, Immediate turn on Voltage surge suppressing protecting LEDs, UL94-V0 certified, SBT (Self Biased Transistor) Technology, Negative Temperature Coefficient, This device is PB-Free, Halogen Free/BFR Free and is RoHS Compliant
NSV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable

Benefits

High or Low side control, Simple Battery Charge, Reduce LED binning and therefore inventory, NO EMI

Applications

LED Drive, Battery Charging, Contact Wetting

End Products

Automotive - Cluster & Central Console Backlighting, Navigation/Audio Systems, Vanity Mirror Light, Car Door Puddle Light, Ambience Lighting, CHMSL, Turn Signals, Side Repeaters, Tail Lamps, Brake Lighting, Trailer lights & Contact Wetting. Display & Signage - Channel letters, Display backlighting, Neon bulb replacements, LED stripes & modules. Architectural lighting Decorative, Task, Exterior, Landscape & Under counter. Computing and Industrial Indicator lamps, Backlights

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
45 V, 20 mA � 10%, 460 mW package, Constant Current Regulator, SOD-123	NSI45020A/D (156kB)	6

Tutorials (3)

Document Title	Document ID/Size	Revision	Revision Date
Constant Current Regulator Driver for T8 Fluorescent Tube Light (VoPPT)	TND402/D (6913.0kB)	0	Aug, 2010
Constant Current Regulator Solutions for Driving LEDs (VoPPT)	TND403/D (24138.0kB)	5	Aug, 2012
Constant Current Regulators For Automotive Interior Lighting Applications	TND6023/D (10759.0kB)	0	Nov, 2013

Package Drawings (1)

Document Title	Document ID/Size	Revision
SOD-123 2 LEAD	425-04 (64.5kB)	G

Application Notes (11)

Document Title	Document ID/Size	Revision	Revision Date
Automotive Applications: The Use of Discrete Constant Current Regulators (CCR) For CHMSL Lighting	AND8349/D (188kB)	3	Jan, 2014
Capacitive Drop Drive Topology with Constant Current Regulator to Drive LEDs	AND8492/D (239.0kB)	2
How To Use Thermal Data Found in Data Sheets	AND8220/D (208.0kB)	0
In-Driver Voltage Protection Techniques for Constant Current Regulators	AND9179/D (224kB)	1	Jun, 2015
Optimizing CCR Protection for Minimal Part Count	AND9203/D (112kB)	0	Feb, 2015
Predicting Thermal Runaway	AND8223/D (104.0kB)	0
Predicting the Effect of Circuit Boards on Semiconductor Package Thermal Performance	AND8222/D (187.0kB)	0
Protecting a CCR from ISO 7637-2 Pulse 2A and Reverse Pulses	AND9098/D (102kB)	2	Jan, 2016
Simple Battery Charger using a CCR	AND9031/D (199kB)	3
Thermal Considerations for the ON Semiconductor Family of Discrete Constant Regulators (CCR) for Driving LEDs in Automotive Applications	AND8391/D (98kB)	4	Jun, 2014
Using ON Semiconductor's Constant Current Regulators in AC Applications	AND8433/D (493.0kB)	1

Simulation Models (4)

Document Title	Document ID/Size	Revision	Revision Date
HowToUseCCRModels.pptx	HowToUseCCRModels (1536kB)	1	Aug, 2014
LTSpice Model	NSI45020AT1G.SP (16kB)	0	Aug, 2014
LTSpiceCCRSymbols	CCR_LTSpiceSymbols (8kB)	0	Aug, 2014
PSpice Model	NSI45020AT1G.LIB (7kB)	2

Evaluation Board Documents (4)

Document Title	Document ID/Size	Revision
CCRGEVB Bill of Materials ROHS Compliant	CCRGEVB_BOM_ROHS.PDF (44.0kB)	6
CCRGEVB Gerber Layout Files (Zip Format)	CCRGEVB_GERBER.ZIP (119.0kB)	2
CCRGEVB Schematic	CCRGEVB_SCHEMATIC.PDF (160.0kB)	2
CCRGEVB Test Procedure	CCRGEVB_TEST_PROCEDURE.PDF (57.0kB)	4

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
CCRGEVB	Active	Pb-free	Constant Current Regulator Array Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NSI45020AT1G	Active	AEC Qualified Pb-free Halide free	SOD-123	425-04	1	Tape and Reel	3000	$0.088
NSV45020AT1G	Active	AEC Qualified PPAP Capable Pb-free Halide free	SOD-123	425-04	1	Tape and Reel	3000	$0.1291