SLLSFC6E November   2021  – July 2025 ISOUSB111

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Power Ratings
    6. 5.6  Insulation Specifications
    7. 5.7  Safety-Related Certifications
    8. 5.8  Safety Limiting Values
    9. 5.9  Electrical Characteristics
    10. 5.10 Switching Characteristics
    11. 5.11 Insulation Characteristics Curves
    12. 5.12 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Test Circuits
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Supply Options
      2. 7.3.2 Power Up
      3. 7.3.3 Symmetric Operation, Dual-Role Port, and Role-Reversal
      4. 7.3.4 Connect and Speed Detection
      5. 7.3.5 Disconnect Detection
      6. 7.3.6 Reset
      7. 7.3.7 LS/FS Message Traffic
      8. 7.3.8 L2 Power Management State (Suspend) and Resume
      9. 7.3.9 L1 Power Management State (Sleep) and Resume
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Isolated Host or Hub
      2. 8.1.2 Isolated Peripheral - Self-Powered
      3. 8.1.3 Isolated Peripheral - Bus-Powered
      4. 8.1.4 Application Curve
        1. 8.1.4.1 Insulation Lifetime
    2. 8.2 Power Supply Recommendations
    3. 8.3 Layout
      1. 8.3.1 Layout Guidelines
        1. 8.3.1.1 Layout Example
        2. 8.3.1.2 PCB Material
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

4 Pin Configuration and Functions

Figure 4-1 DW Package 16-Pin SOIC Top View
Table 4-1 Pin Functions—16 DW
PIN Type(1) DESCRIPTION
NO. NAME
1 VBUS1 — Input Power Supply for Side 1. If a 4.25 V to 5.5 V (example USB power bus) supply is available connect the supply to VBUS1. In this case an internal LDO generates V3P3V1. Else, connect VBUS1 and V3P3V1 to an external 3.3 V power supply.
2 GND1 — Ground 1. Ground reference for Isolator Side 1.
3 V3P3V1 — Power Supply for Side 1. If a 4.25 V to 5.5 V supply is connected to VBUS1 connect a bypass capacitor between V3P3V1 and GND1. In this case an internal LDO generates V3P3V1. Else, connect VBUS1 and V3P3V1 to an external 3.3 V power supply.
4 NC — Preferably leave floating or connect to V3P3V1. Connecting to GND1 is also acceptable.
5 NC — Preferably leave floating or connect to V3P3V1. Connecting to GND1 is also acceptable.
6 UD- I/O Upstream facing port D-.
7 UD+ I/O Upstream facing port D+.
8 GND1 — Ground 1. Ground reference for Isolator Side 1.
9 GND2 — Ground 2. Ground reference for Isolator Side 2.
10 DD+ I/O Downstream facing port D+.
11 DD- I/O Downstream facing port D-.
12 PIN I Upstream pull-up enable. If this pin is low, pull-up on DD+ and DD- is not recognized.
13 NC — Preferably leave floating or connect to V3P3V2. Connecting to GND2 is also acceptable.
14 V3P3V2 — Power Supply for Side 2. If a 4.25 V to 5.5 V supply is connected to VBUS2 connect a bypass capacitor between V3P3V2 and GND1. In this case an internal LDO generates V3P3V2. Else, connect VBUS2 and V3P3V2 to an external 3.3 V power supply.
15 GND2 — Ground 2. Ground reference for Isolator Side 2.
16 VBUS2 — Input Power Supply for Side 2. If a 4.25 V to 5.5 V (example USB power bus) supply is available connect the supply to VBUS2. In this case an internal LDO generates V3P3V2. Else, connect VBUS2 and V3P3V2 to an external 3.3 V power supply.
(1) I = Input, O = Output
ISOUSB111 DWX Package 16-Pin SSOP Top View Figure 4-2 DWX Package 16-Pin SSOP Top View
Table 4-2 Pin Functions—16 DWX
PIN Type(1) DESCRIPTION
NO. NAME
1 VBUS1 — Input Power Supply for Side 1. If a 4.25 V to 5.5 V (example USB power bus) supply is available connect the supply to VBUS1. In this case an internal LDO generates V3P3V1. Else, connect VBUS1 and V3P3V1 to an external 3.3 V power supply.
2 GND1 — Ground 1. Ground reference for Isolator Side 1.
3 V3P3V1 — Power Supply for Side 1. If a 4.25 V to 5.5 V supply is connected to VBUS1 connect a bypass capacitor between V3P3V1 and GND1. In this case an internal LDO generates V3P3V1. Else, connect VBUS1 and V3P3V1 to an external 3.3 V power supply.
4 NC — Leave floating or connect to V3P3V1.
5 V2OK O High level on this pin indicates that side 2 is powered up.
6 UD- I/O Upstream facing port D-.
7 UD+ I/O Upstream facing port D+.
8 GND1 — Ground 1. Ground reference for Isolator Side 1.
9 GND2 — Ground 2. Ground reference for Isolator Side 2.
10 DD+ I/O Downstream facing port D+.
11 DD- I/O Downstream facing port D-.
12 V1OK — High level on this pin indicates that side 1 is powered up.
13 NC — Leave floating or connect to V3P3V2.
14 V3P3V2 — Power Supply for Side 2. If a 4.25 V to 5.5 V supply is connected to VBUS2 connect a bypass capacitor between V3P3V2 and GND1. In this case an internal LDO generates V3P3V2. Else, connect VBUS2 and V3P3V2 to an external 3.3 V power supply.
15 GND2 — Ground 2. Ground reference for Isolator Side 2.
16 VBUS2 — Input Power Supply for Side 2. If a 4.25 V to 5.5 V (example USB power bus) supply is available connect the supply to VBUS2. In this case an internal LDO generates V3P3V2. Else, connect VBUS2 and V3P3V2 to an external 3.3 V power supply.
(1) I = Input, O = Output