Overview
The TJA1027T/20/2Z, produced by NXP USA Inc., is a Local Interconnect Network (LIN) transceiver designed for automotive applications. It serves as the interface between the LIN master/slave protocol controller and the physical bus in a LIN network. This component is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016 (12 V) standards, making it suitable for in-vehicle sub-networks with baud rates up to 20 kBd.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VBAT (Battery Supply Voltage) | Limiting Values | -0.3 | - | +42 | V |
| VBAT (Battery Supply Voltage) | Operating Range | 5 | - | 18 | V |
| IBAT (Battery Supply Current) | Sleep Mode; VLIN = VBAT; VSLP_N = 0 V | 2.5 | 7 | 10 | μA |
| IBAT (Battery Supply Current) | Standby Mode; VLIN = VBAT; VSLP_N = 0 V | 2.5 | 7 | 10 | μA |
| IBAT (Battery Supply Current) | Normal Mode; VLIN = VBAT; VSLP_N = 5 V; VTXD = 5 V | 200 | 800 | 1600 | μA |
| VLIN (Voltage on Pin LIN) | Limiting Value with Respect to GND and VBAT | -42 | - | +42 | V |
| VESD (Electrostatic Discharge Voltage) | On Pin LIN; According to IEC 61000-4-2 | -8 | - | +8 | kV |
| Tvj (Virtual Junction Temperature) | Limiting Value | -40 | - | +150 | °C |
Key Features
- Compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016 (12 V) standards.
- Pin-compatible with TJA1020, TJA1021, TJA1022, TJA1029, and MC33662(B).
- Optimized bus signal shaping to minimize ElectroMagnetic Emissions (EME).
- Internal termination resistor pulls the LIN bus output pin HIGH.
- Very high Electromagnetic Immunity (EMI) and ESD robustness (±8 kV according to IEC 61000-4-2).
- Bus terminal and battery pin protected against transients in the automotive environment (ISO 7637).
- Bus terminal short-circuit proof to battery and ground.
- Thermally protected.
- Initial transmit data (TXD) dominant check.
Applications
The TJA1027T/20/2Z is primarily used in automotive in-vehicle sub-networks, such as those found in vehicle body control modules, door control units, and other automotive electronic control units that require LIN communication.
Q & A
- What is the TJA1027T/20/2Z used for?
The TJA1027T/20/2Z is used as the interface between the Local Interconnect Network (LIN) master/slave protocol controller and the physical bus in a LIN network, primarily in automotive applications.
- What standards is the TJA1027T/20/2Z compliant with?
The TJA1027T/20/2Z is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016 (12 V) standards.
- What is the maximum baud rate supported by the TJA1027T/20/2Z?
The TJA1027T/20/2Z supports baud rates up to 20 kBd.
- What is the operating voltage range of the TJA1027T/20/2Z?
The operating voltage range is from 5 V to 18 V.
- Is the TJA1027T/20/2Z pin-compatible with other LIN transceivers?
Yes, it is pin-compatible with TJA1020, TJA1021, TJA1022, TJA1029, and MC33662(B).
- What kind of protection does the TJA1027T/20/2Z offer?
The TJA1027T/20/2Z offers very high Electromagnetic Immunity (EMI), very high ESD robustness, protection against transients in the automotive environment, bus terminal short-circuit proof to battery and ground, and thermal protection.
- How does the TJA1027T/20/2Z minimize ElectroMagnetic Emissions (EME)?
The TJA1027T/20/2Z optimizes the bus signal shaping to minimize ElectroMagnetic Emissions (EME).
- What is the purpose of the internal termination resistor in the TJA1027T/20/2Z?
The internal termination resistor pulls the LIN bus output pin HIGH.
- What is the ESD robustness of the TJA1027T/20/2Z according to IEC 61000-4-2?
The TJA1027T/20/2Z has an ESD robustness of ±8 kV according to IEC 61000-4-2.
- Is the TJA1027T/20/2Z thermally protected?
Yes, the TJA1027T/20/2Z is thermally protected.
- What is the virtual junction temperature range of the TJA1027T/20/2Z?
The virtual junction temperature range is from -40°C to +150°C.
