Overview
The NSV50010YT1G is a linear constant current regulator (CCR) produced by onsemi. This device is designed to provide a cost-effective solution for regulating current in LEDs, similar to a Constant Current Diode (CCD). It is based on Self-Biased Transistor (SBT) technology and regulates current over a wide voltage range. The CCR is known for its immediate turn-on, requiring only 0.5 V across it to be at 40% of regulation, and it does not require any external components. It is suitable for high or low-side regulator configurations and is qualified to AEC-Q101 standard, making it robust for various applications including automotive, industrial, and commercial signage.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Anode-Cathode Voltage | Vak Max | 50 | V | ||
| Reverse Voltage | VR | 500 mV | |||
| Operating and Storage Junction Temperature Range | TJ, Tstg | -55 | +150 | °C | |
| Steady State Current @ Vak = 7.5 V | Ireg(SS) | 7.0 | 10 | 13 | mA |
| Voltage Overhead | Voverhead | 1.8 | V | ||
| Pulse Current @ Vak = 7.5 V | Ireg(P) | 7.1 | 10.5 | 13.8 | mA |
| Capacitance @ Vak = 7.5 V | C | 2.5 | pF | ||
| Capacitance @ Vak = 0 V | C | 5.7 | pF | ||
| Total Device Dissipation (TA = 25°C) | PD | 208-463 | mW | ||
| Thermal Resistance, Junction-to-Ambient | RθJA | 270-600 | °C/W |
Key Features
- Robust Power Package: 460 mW, suitable for high power applications.
- Wide Operating Voltage Range: Up to 50 V.
- Immediate Turn-On: Turns on with only 0.5 V across it.
- Voltage Surge Suppressing: Protects LEDs from voltage surges.
- UL94-V0 Certified: Ensures high safety standards.
- SBT (Self-Biased Transistor) Technology: Regulates current efficiently.
- Negative Temperature Coefficient: Protects LEDs from thermal runaway.
- AEC-Q101 Qualified and PPAP Capable: Suitable for automotive and other demanding applications.
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant: Environmentally friendly.
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: Ensures reliable switch operation.
- Other Applications: Single LED strings, higher current LED strings, and dimming using PWM.
Q & A
- What is the NSV50010YT1G used for? The NSV50010YT1G is used as a linear constant current regulator (CCR) for regulating current in LEDs.
- What technology is the NSV50010YT1G based on? It is based on Self-Biased Transistor (SBT) technology.
- What is the maximum anode-cathode voltage rating of the NSV50010YT1G? The maximum anode-cathode voltage rating is 50 V.
- What are the operating and storage temperature ranges for the NSV50010YT1G? The operating and storage temperature ranges are -55°C to +150°C.
- Is the NSV50010YT1G suitable for automotive applications? Yes, it is AEC-Q101 qualified and PPAP capable, making it suitable for automotive applications.
- How does the NSV50010YT1G protect LEDs from thermal runaway? It has a negative temperature coefficient that reduces current as temperature rises.
- Can the NSV50010YT1G be used in AC applications? Yes, it can be used with full-wave rectified AC as described in application notes AND8433/D and AND8492/D.
- How is dimming achieved with the NSV50010YT1G? Dimming can be achieved using Pulse Width Modulation (PWM) by placing a BJT in series with the CCR.
- What are the thermal considerations for the NSV50010YT1G? The maximum power dissipation depends on the board design, layout, and ambient temperature. Proper thermal management is necessary to prevent overheating.
- Is the NSV50010YT1G environmentally friendly? Yes, it is Pb-Free, Halogen Free/BFR Free, and RoHS compliant.
