ZHCSNE3 June 2021 TLIN2022A-Q1
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 說明（續）
- 5 Revision History
- 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
- 9.3.3 RXD (Receive Output)
- 9.3.4 VSUP (Supply Voltage)
- 9.3.5 GND (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 Undervoltage on VSUP
- 9.3.12 Unpowered Device and LIN Bus
- 9.4 Device Functional Modes
- 10Application Information Disclaimer
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
9.4 Device Functional Modes
The TLIN2022A-Q1 has three functional modes of operation; normal, sleep, and standby. The next sections describe these modes as well as how the device moves between the different modes. Figure 9-4 graphically shows the relationship while Table 9-1 shows the state of pins.
Table 9-1 Operating Modes
| MODE | EN | RXD | LIN BUS TERMINATION | TRANSMITTER | COMMENT |
|---|---|---|---|---|---|
| Sleep | Low | Floating | Weak Current Pullup | Off | |
| Standby | Low | Low | 45 k? (typical) | Off | Wake up event detected, waiting on MCU to set EN |
| Normal | High | LIN Bus Data | 45 k? (typical) | Off | LIN transmission up to 20 kbps |
Figure 9-4 Operating State Diagram