Overview
The NCV7420D24R2G is a fully featured Local Interconnect Network (LIN) transceiver designed by ON Semiconductor. It is part of the in-vehicle networking (IVN) transceiver family and is compliant with LIN 2.0/2.1 protocol specifications. This device is implemented in I3T technology, allowing both high-voltage analog circuitry and digital functionality to co-exist on the same chip. The NCV7420D24R2G integrates a LIN physical transceiver and a voltage regulator, which can output either 3.3 V or 5 V, making it versatile for various automotive and industrial applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VBB (Nominal Battery Operating Voltage) | 5 | 12 | 26 | V |
| Load Dump Protection | - | - | 45 | V |
| Supply Current in Normal Mode | 1.6 | - | - | mA |
| Supply Current in Standby Mode | 70 | - | - | μA |
| Supply Current in Sleep Mode | 20 | - | - | μA |
| VCC Output Voltage (5V version) | - | 5 | - | V |
| VCC Output Current (5V version) | - | - | ~50 | mA |
| Thermal Shutdown Junction Temperature | 165 | - | 195 | °C |
Key Features
- Compliant with LIN 2.0/2.1 protocol specifications
- Integrated 3.3 V or 5 V voltage regulator with up to 50 mA output current
- Load dump protection up to 45 V
- System ESD protection level up to ±12 kV for LIN, WAKE, and VBB pins
- Wake-up input and enable inputs for standby and sleep modes
- Inhibit output (INH) for auxiliary purposes
- Integrated slope control for EMI compatibility
- Four operating states: normal mode, low slope mode, standby mode, and sleep mode
- Thermal shutdown circuit to prevent overheating
- AEC-Q100 qualified and PPAP capable; Pb-free, halogen-free, and RoHS compliant
Applications
The NCV7420D24R2G is primarily used in automotive and industrial applications where reliable and efficient communication over the LIN bus is required. It is suitable for various control devices such as door locks, mirrors, and other vehicle accessories. Additionally, it can be used in any system that requires low-rate data communication and robust protection against automotive transients and ESD.
Q & A
- What is the primary function of the NCV7420D24R2G?
The NCV7420D24R2G is a LIN transceiver designed to interface between a LIN protocol controller and the physical LIN bus.
- What voltage regulator options are available with the NCV7420D24R2G?
The device can output either 3.3 V or 5 V from its integrated voltage regulator.
- What is the maximum load dump protection voltage for the NCV7420D24R2G?
The device offers load dump protection up to 45 V.
- What are the operating states of the NCV7420D24R2G?
The device has four operating states: normal mode, low slope mode, standby mode, and sleep mode.
- How does the wake-up feature work on the NCV7420D24R2G?
The device can be woken up from sleep mode either by a LIN command or a digital input signal on the WAKE pin.
- What is the thermal shutdown junction temperature for the NCV7420D24R2G?
The thermal shutdown junction temperature ranges from 165°C to 195°C.
- Is the NCV7420D24R2G compliant with automotive standards?
Yes, it is AEC-Q100 qualified and PPAP capable.
- What kind of ESD protection does the NCV7420D24R2G offer?
The device offers system ESD protection up to ±12 kV for LIN, WAKE, and VBB pins.
- What is the purpose of the INH output on the NCV7420D24R2G?
The INH output is used for auxiliary purposes such as switching an external pull-up or resistive divider towards the battery or controlling an external voltage regulator.
- Is the NCV7420D24R2G RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant.
