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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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
Budgetary Price/Unit
Case Outline
NSI45090DDT4G Obsolete 
Halide free
NSI45090DD DPAK-3 369C 1 260 Tape and Reel 2500  
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
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