SLLSF86C May   2018  – March 2022

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description Continued
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  Recommended Operating Conditions
    3. 8.3  Thermal Information
    4. 8.4  Power Ratings
    5. 8.5  Insulation Specifications
    6. 8.6  Safety-Related Certifications
    7. 8.7  Safety Limiting Values
    8. 8.8  Electrical Characteristics
    9. 8.9  Supply Current Characteristics at VISOOUT = 3.3 V
    10. 8.10 Supply Current Characteristics at  VISOOUT = 5 V
    11. 8.11 Switching Characteristics at VISOOUT = 3.3 V
    12. 8.12 Switching Characteristics at VISOOUT = 5 V
    13. 8.13 Insulation Characteristics Curves
    14. 8.14 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Power Isolation
    3. 10.3 Signal Isolation
    4. 10.4 RS-485
    5. 10.5 Functional Block Diagram
    6. 10.6 Feature Description
      1. 10.6.1 Power-Up and Power-Down Behavior
      2. 10.6.2 Protection Features
      3. 10.6.3 Failsafe Receiver
      4. 10.6.4 Glitch-Free Power Up and Power Down
    7. 10.7 Device Functional Modes
    8. 10.8 Device I/O Schematics
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
        1. 11.2.2.1 Data Rate, Bus Length and Bus Loading
        2. 11.2.2.2 Stub Length
        3. 11.2.2.3 Insulation Lifetime
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14Device and Documentation Support
    1. 14.1 Documentation Support
      1. 14.1.1 Related Documentation
    2. 14.2 Receiving Notification of Documentation Updates
    3. 14.3 Support Resources
    4. 14.4 Trademarks
    5. 14.5 Electrostatic Discharge Caution
    6. 14.6 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

7 Pin Configuration and Functions

GUID-20210511-CA0I-CWRN-TGMP-4JKTL2T1RR8Z-low.gif Figure 7-1 ISOW14x220-pin DFMTop View
Table 7-1 Pin Functions
PIN I/O DESCRIPTION
NAME NO.
VIO 1 -- Side 1 logic supply
D 2 I Data input
DE 3 I Driver enable. If pin is floating, driver is disabled (internal pull-down resistor)
R 4 O Received data output
RE 5 I Receiver enable. If pin is floating, receiver buffer is disabled (internal pull-up resistor)
GNDIO 6 -- Ground connections for VIO . GNDIO and GND1 need be shorted directly on PCB.
OUT 7 O General purpose logic output
EN/FLT 8 I/O

Multi-function power converter enable input pin or fault output pin. Can only be used as either an input pin or an output pin.

  • If it's used as Power converter enable input pin, it enables and disables the integrated DC-DC power converter. Connect directly to microcontroller or through a series current limiting resistor to use as an enable input pin. DC-DC power converted is enabled when EN is high (connected to VIO) and disabled when low (connected to GND1). If EN is floating, DC-DC converter is enabled (internal pull-up resistor)
  • If it's used as Fault output pin, it gives an alert signal if power converter is not operating properly. This pin is active low. Connect to microcontroller through a 5 kΩ or greater pull-up resistor in order to use as a fault outpin pin.
VDD 9 -- Side 1 DC-DC converter power supply
GND1 10 -- Ground connection for VIO. GNDIO and GND1 need be shorted directly on PCB.
GND2 11 -- Ground connection for VISOOUT. GND2 and GISOIN need be shorted direclty on PCB, or connected through a ferrite bead.
VISOOUT 12 -- Isolated power converter output voltage. VISOOUT and VISOIN need be shorted directly on PCB, or connected through a ferrite bead.
MODE 13 I Mode select. For RS-485 transceiver to operate at 3.3V supply, connect MODE to GND2. For RS-485 transceiver to operate in 5V supply PROFIBUS mode, connect MODE to VISOOUT (internal pull-down resistor)
IN 14 I General purpose logic input
GISOIN 15 -- Ground connections for VISOIN. GND2 and GISOIN need be shorted direclty on PCB, or connected through a ferrite bead.
VISOIN 16 -- Side 2 supply voltage for RS485. VISOOUT and VISOIN need be shorted directly on PCB, or connected through a ferrite bead.
Y 17 O RS-485 driver non-inverting output
Z 18 O RS-485 driver inverting output
B 19 I RS-485 receiver inverting input
A 20 I RS-485 receiver non-inverting input
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