Overview
The NSI45020JZT1G is an adjustable constant current regulator (CCR) and LED driver produced by onsemi. This device is designed to provide a cost-effective solution for regulating current in LEDs. It utilizes patent-pending Self-Biased Transistor (SBT) technology, ensuring robust performance over a wide voltage range. The CCR features immediate turn-on, voltage surge suppression, and a negative temperature coefficient to protect LEDs from thermal runaway. It is qualified to the stringent AEC-Q101 standard, making it suitable for automotive, industrial, and commercial signage applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Anode-Cathode Voltage | Vak | 45 | V | ||
| Reverse Voltage | VR | 500 mV | mV | ||
| Operating and Storage Junction Temperature Range | TJ, Tstg | -55 | 150 | °C | |
| Steady State Current @ Vak = 7.5 V | Ireg(SS) | 17 | 20 | 23 | mA |
| Voltage Overhead @ Vak = 7.5 V | Voverhead | 1.8 | V | ||
| Pulse Current @ Vak = 7.5 V | Ireg(P) | 17.15 | 23.4 | mA | |
| Thermal Resistance, Junction-to-Ambient | RθJA | 124 | °C/W |
Key Features
- Robust Power Package: 1.5 Watts
- Adjustable up to 40 mA
- Wide Operating Voltage Range
- Immediate Turn-On
- Voltage Surge Suppressing - Protecting LEDs
- AEC-Q101 Qualified
- SBT (Self-Biased Transistor) Technology
- Negative Temperature Coefficient
- Eliminates Additional Regulation
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant
Applications
- Automotive: Chevron Side Mirror Markers, Cluster, Display & Instrument Backlighting, CHMSL, Map Light
- AC Lighting Panels, Display Signage, Decorative Lighting, Channel Lettering
- Switch Contact Wetting
Q & A
- What is the primary function of the NSI45020JZT1G?
The NSI45020JZT1G is an adjustable constant current regulator (CCR) designed to regulate current in LEDs.
- What technology does the NSI45020JZT1G use?
The device utilizes patent-pending Self-Biased Transistor (SBT) technology.
- What is the maximum anode-cathode voltage rating for the NSI45020JZT1G?
The maximum anode-cathode voltage rating is 45 V.
- What is the typical steady-state current at 7.5 V?
The typical steady-state current at 7.5 V is 20 mA.
- Is the NSI45020JZT1G qualified to any specific automotive standards?
Yes, it is qualified to the AEC-Q101 standard.
- What are the key applications of the NSI45020JZT1G?
Key applications include automotive lighting, AC lighting panels, display signage, and decorative lighting.
- How does the NSI45020JZT1G protect LEDs from thermal runaway?
The device features a negative temperature coefficient to protect LEDs from thermal runaway.
- Can the current regulation be adjusted on the NSI45020JZT1G?
Yes, the current regulation can be adjusted by attaching a resistor between the Radj pin and the cathode.
- What is the thermal resistance, junction-to-ambient, for the NSI45020JZT1G?
The thermal resistance, junction-to-ambient, is 124 °C/W.
- Is the NSI45020JZT1G RoHS compliant?
Yes, the device is Pb-Free, Halogen Free/BFR Free, and RoHS compliant.
