NSI45015WT1G

Constant Current Regulator  & LED Driver  45 V, 15 mA  20%, 460 mW Package

The NSI45015WT1G linear 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 35% 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 CCR comes in thermally

robust packages and is qualified to be UL94−V0 certified.

NSI45015WT1G Features

• Robust Power Package: 460 mW

• Wide Operating Voltage Range

• Immediate Turn-On

• Voltage Surge Suppressing − Protecting LEDs

• SBT (Self−Biased Transistor) Technology

• Negative Temperature Coefficient

• 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

NSI45015WT1G Applications

• Automobile: Chevron Side Mirror Markers, Cluster, Display & Instrument Backlighting, CHMSL, Map Light

• AC Lighting Panels, Display Signage, Decorative Lighting, Channel Lettering

• Switch Contact Wetting

• Application Note AND8391/D − Power Dissipation Considerations

• Application Note AND8349/D − Automotive CHMSL

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