Overview
The NUP2105LT1, manufactured by onsemi, is a dual-line CAN bus protector designed to safeguard CAN transceivers in high-speed and fault-tolerant networks from electrostatic discharge (ESD) and other harmful transient voltage events. This device offers bidirectional protection for each data line within a compact SOT-23 package, providing system designers a cost-effective solution to enhance system reliability and comply with stringent Electromagnetic Interference (EMI) requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Peak Power Dissipation per Line (8/20 μs Waveform) | 350 | W | ||
| Reverse Working Voltage (VRWM) | 24 | V | ||
| Breakdown Voltage (VBR) | 26.2 | V | ||
| Clamping Voltage | 44 | V | ||
| Reverse Leakage Current (IR) | 100 nA | |||
| Operating Junction Temperature Range (TJ) | -55 | 150 | °C | |
| Storage Temperature Range (TJ) | -55 | 150 | °C | |
| Lead Solder Temperature (TL) | 260 | °C | ||
| ESD Human Body Model (HBM) | 16 kV | |||
| IEC 61000-4-2 (ESD) Specification | 30 kV | |||
| IEC 61000-4-4 (EFT) Specification | 50 A (5/50 ns) | |||
| IEC 61000-4-5 (Lightning) Specification | 8.0 A (8/20 μs) |
Key Features
- High reliability and Mean Time Between Failures (MTBF)
- Low capacitance to ground, suitable for high-speed CAN data rates
- Bidirectional protection for each data line in a single SOT-23 package
- Low reverse leakage current (< 100 nA)
- Compliance with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Lightning) specifications
- ISO 7637-2 and ISO 7637-3 pulse compatibility
- Pb-free, halogen-free/BFR-free, and RoHS compliant
- AEC-Q101 qualified and PPAP capable for automotive applications
- Flammability rating UL 94 V-0
Applications
- Automotive networks: Low and high-speed CAN, fault-tolerant CAN, and in-vehicle networking (IVN)
- Industrial control systems: Smart Distribution Systems (SDS®), DeviceNet™, and other high-speed CAN networks
- Consumer electronics: Protection for USB ports, audio ports, HDMI ports, and power supply circuits
- Medical and marine systems: ESD and transient voltage protection in harsh environments
Q & A
- What is the primary function of the NUP2105LT1?
The NUP2105LT1 is designed to protect CAN transceivers in high-speed and fault-tolerant networks from ESD and other harmful transient voltage events.
- What package type does the NUP2105LT1 use?
The NUP2105LT1 is packaged in a compact SOT-23 package.
- What are the key specifications for peak power dissipation and reverse working voltage?
The peak power dissipation per line is 350 W (8/20 μs waveform), and the reverse working voltage (VRWM) is 24 V.
- Is the NUP2105LT1 compliant with EMI standards?
Yes, it complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Lightning) specifications.
- What are the typical applications of the NUP2105LT1?
It is used in automotive networks, industrial control systems, consumer electronics, and other applications requiring high-speed CAN data protection.
- Is the NUP2105LT1 RoHS compliant?
Yes, the NUP2105LT1 is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What is the operating junction temperature range of the NUP2105LT1?
The operating junction temperature range is -55°C to 150°C.
- Does the NUP2105LT1 have any automotive qualifications?
Yes, it is AEC-Q101 qualified and PPAP capable for automotive applications.
- What is the flammability rating of the NUP2105LT1?
The flammability rating is UL 94 V-0.
- How does the NUP2105LT1 protect against ESD?
The device provides bidirectional protection for each data line and complies with the IEC 61000-4-2 (ESD) specification up to 30 kV.
