NSI50150AD: LED Driver, Adjustable Constant Current Regulator, 50 V, 150 - 350 mA

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.The CCR turns on immediately and is at 14% of regulation with only 0.5 V Vak. The Radj pin allows Ireg(SS) to be adjusted to higher currents by attaching a resistor between Radj (Pin 3) and the Cathode (Pin 4). The Radj pin can also be left open (No Connect) if no 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, which is lead-free RoHS compliant and uses halogen-free molding compound. Meets AEC-Q101 standard and UL94-V0 certified.

Features

Adjustable up to 350 mA, Wide Operating Voltage Range, Immediate Turn-On, Voltage Surge Suppressing - Protecting LEDs, SBT (SelfBiased Transistor) Technology, Negative Temperature Coefficient, Eliminates Additional Regulation, These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant.
AEC-Q101 Qualified and PPAP Capable, UL94V0 Certified

Benefits

High or Low side control

Applications

LED Drive, Battery Charging

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
Adjustable Constant Current Regulator and LED Driver	NSI50150AD/D (159kB)	1

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
DPAK (SINGLE GAUGE) TO-252	369C (34.6kB)	F

Application Notes (12)

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 Discrete Constant Current Regulators in DPAK, SMC and SMB Packages for Driving LEDs	AND9008/D (697.0kB)	2
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	NSI50150ADT4G.SP (16kB)	0	Aug, 2014
LTSpiceCCRSymbols	CCR_LTSpiceSymbols (8kB)	0	Aug, 2014
PSpice Model	NSI50150ADT4G (7kB)	2

Evaluation Board Documents (5)

Document Title	Document ID/Size	Revision
CCRACGEVB Bill of Materials ROHS Compliant	CCRACGEVB_BOM_ROHS.PDF (259kB)	6
CCRACGEVB Gerber Layout Files (Zip Format)	CCRACGEVB_GERBER.ZIP (89.0kB)	1
CCRACGEVB Manual	EVBUM2176/D (1666kB)	1
CCRACGEVB Schematic	CCRACGEVB_SCHEMATIC.PDF (239.0kB)	4
CCRACGEVB Test Procedure	CCRACGEVB_TEST_PROCEDURE.PDF (453kB)	1

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
CCRACGEVB	Active	Pb-free	NSIC Family of Constant Current Regulators Devices Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NSI50150ADT4G	Active	AEC Qualified Pb-free Halide free	DPAK-3	369C	1	Tape and Reel	2500	$0.231
NSV50150ADT4G	Active	AEC Qualified PPAP Capable Pb-free Halide free	DPAK-3	369C	1	Tape and Reel	2500	$0.2657