The TPIC1021 is the LIN (Local Interconnect Network) physical interface, which integrates the serial transceiver with wake up and protection features. The LIN bus is a single wire, bi-directional bus typically used for low-speed in-vehicle applications.
The TPIC1021 is a LIN (Local Interconnect Network) physical interface that integrates a serial transceiver with wake-up and protection features. It complies with the LIN Physical Layer Specification Revision 2.0 and supports bus speeds up to 20 kbps. The device includes an integrated pull-up resistor and series diode for slave applications, eliminating the need for external components in those configurations.
Designed for harsh automotive environments, the TPIC1021 can handle LIN bus voltage swings from -40 V to +40 V DC. It features dominant state timeout protection on the TXD pin, ESD protection up to 12 kV (Human Body Model), and thermal shutdown. The chip operates with a supply voltage range of 7 V to 27 V DC.
| LIN Bus Speed | up to 20 kbps |
|---|---|
| ESD Protection | 12 kV (Human Body Model) |
| Supply Voltage Range | 7 V to +27 V DC |
| LIN Pin Voltage Handling | -40 V to +40 V |
| Internal Pull-up Resistor | 80kΩ |
No, it has an integrated pull-up resistor and series diode on the LIN pin.
The Dominant State Timeout Timer disables the transmitter to allow the bus to return to the recessive state.