Overview
The NUP2105LT3G, produced by onsemi, is a dual line CAN Bus protector designed to provide robust protection against Electrostatic Discharge (ESD) and other harmful transient voltage events in high-speed and fault-tolerant networks. This device is packaged in a compact SOT-23 package, offering a low-cost solution for improving system reliability and meeting stringent EMI requirements.
It is based on Zener technology, optimizing the active area of a PN junction to absorb high peak energy from transient events. The NUP2105LT3G is particularly suited for applications in harsh environments, such as industrial control networks and automotive systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Peak Power Dissipation (8/20 μs Waveform) | - | - | 350 | W |
| Operating Junction Temperature Range | -55 | - | 150 | °C |
| Storage Temperature Range | -55 | - | 150 | °C |
| Lead Solder Temperature (10 s) | - | - | 260 | °C |
| Reverse Working Voltage (VRWM) | - | - | 24 | V |
| Breakdown Voltage (VBR) at IT = 1 mA | 26.2 | - | 32 | V |
| Reverse Leakage Current (IR) at VRWM = 24 V | - | 1.5 | 100 | nA |
| Clamping Voltage (VC) at IPP = 5 A (8/20 μs Waveform) | - | - | 40 | V |
| Maximum Peak Pulse Current (IPP) 8/20 μs Waveform | - | - | 8.0 | A |
| Capacitance (CJ) at VR = 0 V, f = 1 MHz (Line to GND) | - | - | 30 | pF |
Key Features
- Bidirectional protection for each data line in a single compact SOT-23 package.
- High peak power dissipation of 350 W per line (8/20 μs waveform).
- Low reverse leakage current of less than 100 nA.
- Low capacitance suitable for high-speed CAN data rates.
- Compliance with IEC 61000-4-2 (ESD): Level 4, 30 kV; IEC 61000-4-4 (EFT): 40 A; and IEC 61000-4-5 (Lightning): 8.0 A (8/20 μs).
- ISO 7637-2 and ISO 7637-3 pulse compliance.
- Flammability rating UL 94 V-0 and RoHS compliance.
- AEC-Q101 qualified and PPAP capable for automotive applications.
Applications
- Industrial control networks, including Smart Distribution Systems (SDS) and DeviceNet.
- Automotive networks, including low and high-speed CAN and fault-tolerant CAN.
- Medical and marine systems.
- Any high-speed data communication lines requiring robust ESD and EMI protection.
Q & A
- What is the primary function of the NUP2105LT3G?
The NUP2105LT3G is designed to protect CAN transceivers from ESD and other harmful transient voltage events in high-speed and fault-tolerant networks.
- What is the peak power dissipation of the NUP2105LT3G?
The peak power dissipation is 350 W per line (8/20 μs waveform).
- What are the operating temperature ranges for the NUP2105LT3G?
The operating junction temperature range is -55°C to 150°C, and the storage temperature range is also -55°C to 150°C.
- Is the NUP2105LT3G compliant with automotive standards?
Yes, it is AEC-Q101 qualified and PPAP capable for automotive applications.
- What is the reverse leakage current of the NUP2105LT3G?
The reverse leakage current is less than 100 nA at VRWM = 24 V.
- What are the EMI and ESD compliance levels of the NUP2105LT3G?
It complies with IEC 61000-4-2 (ESD): Level 4, 30 kV; IEC 61000-4-4 (EFT): 40 A; and IEC 61000-4-5 (Lightning): 8.0 A (8/20 μs).
- What is the package type of the NUP2105LT3G?
The device is packaged in a compact SOT-23 package.
- Is the NUP2105LT3G RoHS compliant?
Yes, it is RoHS compliant and also Pb-free, halogen-free/BFR-free.
- What are some common applications of the NUP2105LT3G?
Common applications include industrial control networks, automotive networks, medical systems, and marine systems.
- How does the NUP2105LT3G protect against transient voltage events?
The device uses Zener technology to absorb high peak energy from transient events, clamping surge voltages to a safe level.
