ZHCSNE4 June 2022 TLIN2024A-Q1
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 说明（续）
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 LIN (Local Interconnect Network) Bus
- 9.3.2 TXD (Transmit Input and Output)
- 9.3.3 RXD (Receive Output)
- 9.3.4 VSUP1/2 (Supply Voltage)
- 9.3.5 GND1/2 (Ground)
- 9.3.6 EN (Enable Input)
- 9.3.7 Protection Features
- 9.3.8 TXD Dominant Time Out (DTO)
- 9.3.9 Bus Stuck Dominant System Fault: False Wake-Up Lockout
- 9.3.10 Thermal Shutdown
- 9.3.11 Under Voltage on VSUP
- 9.3.12 Unpowered Device and LIN Bus
- 9.4 Device Functional Modes
- 10Application and Implementation Disclaimer
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
9.3.1.2.1 Termination
There is an internal pull-up resistor with a serial diode structure to VSUP1/2, so no external pull-up components are required for the LIN responder node applications. An external pull-up resistor (1 kΩ) and a series diode to VSUP1/2 must be added when the device is used for commander node applications as per the LIN specification.
Figure 9-1 shows a commander node configuration and how the voltage levels are defined
Figure 9-1 Commander Node Configuration
with Voltage Levels