TIDUF55 November   2023

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Power Tree and Wakeup
      2. 2.2.2 Insulation Requirement for Isolated Interface
      3. 2.2.3 Robust Relay Driver
      4. 2.2.4 Stackable Daisy Chain Communication
    3. 2.3 Highlighted Products
      1. 2.3.1  TMDSCNCD263
      2. 2.3.2  LMR51440
      3. 2.3.3  TPS7A16
      4. 2.3.4  TPS7B81
      5. 2.3.5  TPS62913
      6. 2.3.6  TPS4H160-Q1
      7. 2.3.7  ULN2803C
      8. 2.3.8  ISO1042
      9. 2.3.9  UCC12050
      10. 2.3.10 ISO1410
      11. 2.3.11 SN6505B
      12. 2.3.12 BQ32002
      13. 2.3.13 HDC3020
      14. 2.3.14 TPS3823
      15. 2.3.15 DP83826E
      16. 2.3.16 TPS763
      17. 2.3.17 LM74701-Q1
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Software Requirements
    3. 3.3 Test Setup
    4. 3.4 Test Results
      1. 3.4.1 Power Supply Testing
      2. 3.4.2 Daisy Chain Signal Quality
      3. 3.4.3 Relay Driving
      4. 3.4.4 Isolated CAN Transceiver Operation
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

3 Hardware, Software, Testing Requirements, and Test Results

The key performances of the TIDA-010253 were tested in a TI lab, the end equipment used and test processes and results are described in this section.

Table 3-1 describes the connections for TIDA-010253 board.

Table 3-1 LV_24V Input Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J26-1 PGND Negative terminal of power supply
J26-2 PGND Negative terminal of power supply
J26-3 VBATI Positive terminal of power supply, rated voltage is 24 V, working voltage is
18 V–32 V
J26-4 VBATI Positive terminal of power supply, rated voltage is 24 V, working voltage is
18 V–32 V
Table 3-2 RY_24V Input Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J16-1 PGND Negative terminal of relay power supply
J16-2 24V_CONN Positive terminal of relay power supply, rated voltage is 24 V, working voltage is
18 V–32 V
Table 3-3 Relay Coil Driver Connector1
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J22-1 LS_OUT1 Reserved low side power switch terminal1 between PGND and coil
J22-2 LS_OUT_COM Common low side power switch terminal between PGND and coil
J22-3 HS_OUT1 High-side power switch terminal1 between relay power supply and coil
Table 3-4 Relay Coil Driver Connector2
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J21-1 LS_OUT2 Reserved low side power switch terminal2 between PGND and coil
J21-2 LS_OUT_COM Common low side power switch terminal between PGND and coil
J21-3 HS_OUT2 High side power switch terminal2 between relay power supply and coil
Table 3-5 Relay Coil Driver Connector3
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J24-1 LS_OUT3 Reserved low side power switch terminal3 between PGND and coil
J24-2 LS_OUT_COM Common low side power switch terminal between PGND and coil
J24-3 HS_OUT3 High side power switch terminal3 between relay power supply and coil
Table 3-6 Relay Coil Driver Connector4
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J23-1 LS_OUT4 Reserved low side power switch terminal4 between PGND and coil
J23-2 LS_OUT_COM Common low side power switch terminal between PGND and coil
J23-3 HS_OUT4 High side power switch terminal4 between relay power supply and coil
Table 3-7 DaisyChain0 (COMH) Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J4-3 BQ0_COMHP_ISO COM high-side positive
J4-4 BQ0_COMHN_ISO COM high-side negative
Table 3-8 DaisyChain0 (COML) Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J8-1 BQ0_COMLN_ISO COM low-side negative
J8-2 BQ0_COMLP_ISO COM low-side positive
Table 3-9 DaisyChain1 (COMH) Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J9-3 BQ1_COMHP_ISO COM high-side positive
J9-4 BQ1_COMHN_ISO COM high-side negative
Table 3-10 DaisyChain1 (COML) Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J13-1 BQ1_COMLN_ISO COM low-side negative
J13-2 BQ1_COMLP_ISO COM low-side positive
Table 3-11 I2C Peripheral Device Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J19-1 GND BCU ground
J19-2 VDDIO 3.3 V for I/Os and power supply for peripheral device
J19-3 EXT_I2C2_GPIO GPIO for I2C2 control
J19-4 EXT_I2C1_GPIO GPIO for I2C1 control
J19-5 I2C2_SDA Serial Data Line for I2C2, connected to HDC3020
J19-6 I2C2_SCL Serial Clock Line for I2C2, connected to HDC3020
J19-7 I2C1_SDA Serial Data Line for I2C1, connected to BQ32002
J19-8 I2C1_SCL Serial Clock Line for I2C1, connected to BQ32002
Table 3-12 SPI Peripheral Device (HV ADC and Current Sensor) Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR
SCHEMATIC NET		 NOTES
J25-1 VDDIO 3.3 V for I/Os and power supply for peripheral device
J25-2 VDDIO 3.3 V for I/Os and power supply for peripheral device
J25-3 UIR_OC1 Overcurrent alarm1
J25-5 UIR_OC2 Overcurrent alarm2
J25-7 UIR_nFAULT SPI peripheral device fault alarm
J25-8 VCC5V 5-V power supply for peripheral device
J25-9 VCC5V 5-V power supply for peripheral device
J25-10 VCC5V 5-V power supply for peripheral device
J25-11 UIR_SPI_MOSI SPI Master Output, Slave Input
J25-13 UIR_SPI_MISO SPI Master Input, Slave Output
J25-15 UIR_SPI_CS SPI Chip Select
J25-17 UIR_SPI_CLK SPI Clock
J25-18 UIR_SN65_EN Enable pin to additional power supply for peripheral device
J25-19 GND BCU ground
J25-20 GND BCU ground
Table 3-13 CAN0 Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR SCHEMATIC NET NOTES
J1-2 CANH0 CAN0_High
J1-3 CANL0 CAN0_Low
J1-4 GND0 CAN0_GND
Table 3-14 CAN1 Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR SCHEMATIC NET NOTES
J2-2 CANH1 CAN1_High
J2-3 CANL1 CAN1_Low
J2-4 GND1 CAN1_GND
Table 3-15 CAN2 Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR SCHEMATIC NET NOTES
J30-2 CANH2 CAN2_High
J30-3 CANL2 CAN2_Low
J30-4 GND4 CAN4_GND
Table 3-16 RS-485 Connector
CONNECTOR AND PIN ASSIGNMENTS FUNCTION OR SCHEMATIC NET NOTES
J30-2 RS485_B RS-485 Negative
J30-3 RS485_A RS485_Positive
J30-4 GND2 RS485_GND