NSI45090DD: 45 V, 90 mA ±15% Adjustable Constant Current Regulator & LED Driver

Datasheet: 45 V, 90 mA ± 15%, 2.7 W package, Adjustable Constant Current Regulator & LED Driver, DPAK
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Product Overview
Product Description
The adjustable constant current regulator is a simple, economical and robust device designed to provide a cost effective solution for regulating current in LEDs. The constant current regulator is based on patent-pending 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 20% 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 anodecathode 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. For the AEC-Q101 part please see the NSI45090JD datasheet.
Features   Benefits
     
  • Robust Power Package: 2.7 Watts, Adjustable up to 160 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
 
  • High or Low side control
Applications   End Products
  • LED Drive, Battery Charging, Contact Wetting
 
  • 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
Technical Documentation & Design Resources
Design Notes (2) Data Sheets (1)
Tutorials (3) Package Drawings (1)
Application Notes (9) Videos (1)
Simulation Models (2)  
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
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Qty.
NSI45090DDT4G Last Shipments 
Pb-free
Halide free
45 V, 90 mA ±15% Adjustable Constant Current Regulator & LED Driver DPAK-3 369C 1 Tape and Reel 2500  
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) :
P&S   (2014-08-22 00:00) : >1K
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