TIDA-01090 Reference Design

Texas Instruments

RS-485 Automatic Direction Control Reference Design

Description

The TIDA-01090 reference design enables half-duplex communication over an RS-485 bus without requiring additional driver-enable/receiver-enable controls.  The design allows for the transceiver used on each node to go into transmit mode automatically when data is being transmitted from a local Microcontroller (MCU) or Universal Asynchronous Receiver/Transmitter (UART) and then transition back into receive mode once the data frame is complete.

Features
  • Automatically enables an RS-485 driver when data is output from an MCU or UARTTransitions RS-485 transceiver into receive mode when data is not being transmittedWorks with any RS-485 transceiverLow-cost due to minimal number of componentsAdjustable data frame length via passive component selection
Applications
  • String inverter
  • Video recorder
  • Glass break detector
  • Calling button operating panel
  • Intrusion HMI panel
  • Micro inverter
  • Spectrometer
  • HVAC gateway
  • Thermostat
  • HVAC controller
  • Automotive test
  • Fire alarm control panel (FACP)
  • Intrusion control panel
  • AC charging (pile) station
  • Central inverter
  • DC fast charging station
  • Solar arc protection
  • Smart combiner box
  • Grid asset monitoring
  • Asset tracker
  • Elevator main control panel
  • Source measurement unit (SMU)
  • Programmable DC power supply
  • HVAC valve & actuator control
  • Building security gateway
  • Battery cell formation & test equipment
  • AC analog input module
  • DC analog input/output module
  • Wired communication modules
  • EV charging station HMI module
Product Categories
  • Interface

End Equipment Reference Diagrams

Application Area End Equipment
String inverter https://www.ti.com/solution/string-inverter#referencedesigns
Video recorder https://www.ti.com/solution/video-recorder#referencedesigns
Glass break detector https://www.ti.com/solution/glass-break-detector#referencedesigns
Calling button operating panel https://www.ti.com/solution/calling-button-operating-panel#referencedesigns
Intrusion HMI panel https://www.ti.com/solution/intrusion-hmi-panel#referencedesigns
Micro inverter https://www.ti.com/solution/micro-inverter#referencedesigns
Spectrometer https://www.ti.com/solution/spectrometer#referencedesigns
HVAC gateway https://www.ti.com/solution/hvac-gateway#referencedesigns
Thermostat https://www.ti.com/solution/thermostat#referencedesigns
HVAC controller https://www.ti.com/solution/hvac-controller#referencedesigns
Automotive test https://www.ti.com/solution/automotive-test#referencedesigns
Fire alarm control panel (FACP) https://www.ti.com/solution/fire-alarm-control-panel-facp#referencedesigns
Intrusion control panel https://www.ti.com/solution/intrusion-control-panel#referencedesigns
AC charging (pile) station https://www.ti.com/solution/ac-charging-pile-station#referencedesigns
Central inverter https://www.ti.com/solution/central-inverter#referencedesigns
DC fast charging station https://www.ti.com/solution/dc-fast-charging-station#referencedesigns
Solar arc protection https://www.ti.com/solution/solar-arc-protection#referencedesigns
Smart combiner box https://www.ti.com/solution/smart-combiner-box#referencedesigns
Grid asset monitoring https://www.ti.com/solution/grid-asset-monitoring#referencedesigns
Asset tracker https://www.ti.com/solution/asset-tracker#referencedesigns
Elevator main control panel https://www.ti.com/solution/elevator-main-control-panel#referencedesigns
Source measurement unit (SMU) https://www.ti.com/solution/source-measurement-unit-smu#referencedesigns
Programmable DC power supply https://www.ti.com/solution/programmable-dc-power-supply#referencedesigns
HVAC valve & actuator control https://www.ti.com/solution/hvac-valve-actuator-control#referencedesigns
Building security gateway https://www.ti.com/solution/building-security-gateway#referencedesigns
Battery cell formation & test equipment https://www.ti.com/solution/battery-cell-formation-test-equipment#referencedesigns
AC analog input module https://www.ti.com/solution/ac-analog-input-module#referencedesigns
DC analog input/output module https://www.ti.com/solution/dc-analog-input-output-module#referencedesigns
Wired communication modules https://www.ti.com/solution/wired-communication-modules#referencedesigns
EV charging station HMI module https://www.ti.com/solution/ev-charging-station-hmi-module#referencedesigns
DC fast charging power module https://www.ti.com/solution/dc-fast-charging-power-module#referencedesigns
Temperature controller https://www.ti.com/solution/temperature-controller#referencedesigns
Condition monitoring module https://www.ti.com/solution/condition-monitoring-module#referencedesigns
Substation automation https://www.ti.com/solution/substation-automation#referencedesigns
Rail sensing & monitoring https://www.ti.com/solution/rail-sensing-monitoring-systems#referencedesigns
Analog security camera https://www.ti.com/solution/analog-security-camera#referencedesigns
Motion detector https://www.ti.com/solution/motion-detector#referencedesigns
Weigh scale https://www.ti.com/solution/weigh-scale#referencedesigns
DC wallbox charger https://www.ti.com/solution/dc-wallbox-charger#referencedesigns

Parts

Part Number Name Companion Part
NA555 NA555 Buy Datasheet
SN65HVD3082E SN65HVD3082E Buy Datasheet

Bill Of Materials

Download the bill of materials for TIDA-01090 Download

Schematic

Quickly understand overall system functionality.

Download the schematic for TIDA-01090

Test Data

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Download the test file for TIDA-01090

Other Documents

Title Updated Type Size (KB)
TIDA-01090 Gerber 21 Jun 2016 ZIP 0
TIDA-01090 CAD Files 21 Jun 2016 ZIP 298
TIDA-01090 PCB 21 Jun 2016 PDF 421
TIDA-01090 Assembly Drawing 21 Jun 2016 PDF 70
TIDA-01090 BOM 21 Jun 2016 PDF 96
TIDA-01090 Schematic 21 Jun 2016 PDF 54