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Description
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.
Title
LED Driver, Adjustable Constant Current Regulator, 50 V, 150 - 350 mA
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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. 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 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 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 and is qualified to stringent AEC-Q101 standard, which is lead-free RoHS compliant and uses halogen-free molding compound.
FeaturesRobust Power Package: 4.2 Watts Adjustable to 350 mA Wide Operating Voltage Range Immediate Turn-On Voltage Surge Suppressing - Protecting LEDs UL94-V0 Certified SBT (Self-Biased Transistor) Technology Negative Temperature Coefficient Eliminates Additional Regulation NSV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC-Q101 Qualified and PPAP CapableFor information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions. 1. Ireg(SS) steady state is the voltage (Vak) applied for a time duration 170 sec, using mm2 2 oz. Copper traces, in still air. 2. Voverhead = Vin - VLEDs. Voverhead is typical value for 48% Ireg(SS). 3. Ireg(P) non-repetitive pulse test. Pulse width t 1 msec.
Total Device Dissipation (Note = 25°C Derate above 25°CThermal Resistance, Junction-to-Ambient (Note 4) Thermal Resistance, Junction-to-Tab (Note 4) Total Device Dissipation (Note = 25°C Derate above 25°C
Thermal Resistance, Junction-to-Ambient (Note 5) Thermal Resistance, Junction-to-Tab (Note 5) Total Device Dissipation (Note = 25°C Derate above 25°C
Thermal Resistance, Junction-to-Ambient (Note 6) Thermal Resistance, Junction-to-Tab (Note 6) Total Device Dissipation (Note = 25°C Derate above 25°C
Thermal Resistance, Junction-to-Ambient (Note 7) Thermal Resistance, Junction-to-Tab (Note 7) Total Device Dissipation (Note = 25°C Derate above 25°C
Thermal Resistance, Junction-to-Ambient (Note 8) Thermal Resistance, Junction-to-Tab (Note 8) Total Device Dissipation (Note = 25°C Derate above 25°C
Thermal Resistance, Junction-to-Ambient (Note 9) Thermal Resistance, Junction-to-Tab (Note 9) Total Device Dissipation (Note = 25°C Derate above 25°C
Thermal Resistance, Junction-to-Ambient (Note 10) Thermal Resistance, Junction-to-Tab (Note 10) Total Device Dissipation (Note = 25°C Derate above 25°C
mm2, 1 oz. copper traces, still air. mm2, 2 oz. copper traces, still air. mm2, 1 oz. copper traces, still air. mm2, 2 oz. copper traces, still air. mm2, 1 oz. copper traces, still air. mm2, 2 oz. copper traces, still air. mm2, 3 oz. copper traces, still air. 400 mm2, DENKA 1.5 mm AL, 2 kV thermally conductive dielectric, 2 oz. Cu, or equivalent.
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NSI50150ADT4G
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