SLUUCB0 August   2021 TLIN1021A-Q1 , TLIN1039-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Description
  3. 2EVM Setup and Requirements
    1. 2.1 Commander Mode
    2. 2.2 Responder Mode
    3. 2.3 Pushbutton Wake
  4. 3Schematic and Bill of Materials

2 EVM Setup and Requirements

Use the following equipment to evaluate the performance of the TLIN1039-Q1 and TLIN1021A-Q1 devices:

  • Power supply capable of supplying the desired supply voltage. Typical LIN applications use 12 V or
    24 V, but the TLIN1039-Q1 and TLIN1021A-Q1 operate with any supply voltage from 4.5 V to 36 V. Connect this voltage across the VBAT and GND pins of either the J2, J3, or J5 connectors.
  • Power supply capable of supplying the desired IO pin voltage from 2 V to 5.5 V. Connect this voltage across the VCC and GND pins of the J6 connector.
  • If the LIN bus interface or the INH pin (TLIN1021A-Q1) is to be observed on an oscilloscope, use probes capable of tolerating voltages as large as VBAT.
  • The logic interface pins (TXD: TP6, RXD: TP7, and EN: TP5) may interface to a microcontroller, pattern generator, or logic analyzer with logic levels matching the VCC voltage.

Table 2-1 Test Points and Jumpers
Designator Description
TP1 Test point to observe the INH pin
TP2 Test point to GND
TP3 Test point to GND
TP4 Test point to observe the VCC supply
TP5 Test point to observe the EN pin
TP6 Test point to observe the TXD pin
TP7 Test point to observe the RXD pin
J1 6-pin (3x2) header to observe/inject various logic signals on the U1 device

  • Pins 1,3, and 5 are all connected to GND
  • Pin 2 is connected to the RXD pin
  • Pin 4 is connected to the EN pin
  • Pin 6 is connected to the TXD pin
J2 2-pin (2x1) header for supplying or monitoring VSUP
J3 3-pin (3x1) header to observe the LIN bus and to supply VBAT
J4 2-pin (2x1) header connecting the commander mode external pull-up to the LIN bus. If shunted, U1 is in commander mode, if left open U1 is in responder mode.
J5 3-pin (3x1) header that has the same function as J3