SDLS972B April   2023  – April 2024 LSF0102

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  Electrical Characteristics
    6. 5.6  LSF0102 AC Performance (Translating Down) Switching Characteristics , VCCB = 3.3V
    7. 5.7  LSF0102 AC Performance (Translating Down) Switching Characteristics, VCCB = 2.5V
    8. 5.8  LSF0102 AC Performance (Translating Up) Switching Characteristics, VCCB = 3.3V
    9. 5.9  LSF0102 AC Performance (Translating Up) Switching Characteristics, VCCB = 2.5V
    10. 5.10 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Auto Bidirectional Voltage Translation
      2. 7.3.2 Output Enable
    4. 7.4 Device Functional Modes
      1. 7.4.1 Up and Down Translation
        1. 7.4.1.1 Up Translation
        2. 7.4.1.2 Down Translation
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Open-Drain Interface (I2C, PMBus, SMBus, and GPIO)
        1. 8.2.1.1 Design Requirements
          1. 8.2.1.1.1 Enable, Disable, and Reference Voltage Guidelines
          2. 8.2.1.1.2 Bias Circuitry
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Bidirectional Translation
          2. 8.2.1.2.2 Pull-Up Resistor Sizing
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Mixed-Mode Voltage Translation
      3. 8.2.3 Single Supply Translation
      4. 8.2.4 Voltage Translation for Vref_B < Vref_A + 0.8V
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 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. 10Mechanical, Packaging, and Orderable Information
  12. 11Revision History

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DCU|8
  • DDF|8
  • YZT|8
  • DCT|8
  • DQE|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4 Pin Configuration and Functions

Pinout drawings are not to scale
Pinout drawings are not to scaleGUID-91ABD652-5FA9-45A0-8385-3A0B3EF8CF27-low.gifFigure 4-1 LSF0102 DCT, DCU or DDF Package, 8-Pin SM8, VSSOP, or SOT-23 (Top View). Pinout drawings are not to scale
Pinout drawings are not to scaleGUID-20240325-SS0I-GBBP-GJCW-XV2DG4Q316DW-low.svgFigure 4-3 LSF0102 DTM Package, 8-Pin X2SON (Transparent Top View). Pinout drawings are not to scale
Pinout drawings are not to scaleGUID-0CCC5355-7708-4EB7-8B18-6EDC2B36706A-low.gifFigure 4-2 LSF0102 DQE Package, 8-Pin X2SON (Transparent Top View). Pinout drawings are not to scale
Table 4-1 Pin Functions
PIN TYPE(1) DESCRIPTION
NAME NO.
An 3, 4 I/O Auto-Bidirectional Data port
Bn 6, 5 I/O
EN 8 I Enable input; connect to Vref_B and pull-up through a high resistor (200kΩ). See Using the Enable Pin with the LSF Family
GND 1 — Ground
Vref_A 2 — Reference supply voltage.
For proper device biasing, see Section 8 and Understanding the Bias Circuit for the LSF Family.
Vref_B 7 —
(1) I= input, O = output
GUID-20220908-SS0I-1TD8-BQG9-XJXKNGGGG3JB-low.svg Figure 4-4 LSF0102 YZT Package, 8-Pin DSBGA (Bottom View)
Legend
Input Input or Output
Ground
Table 4-2 Pin Functions
PIN TYPE(1) DESCRIPTION
NO. NAME
C1 A1 I/O Auto-Bidirectional Data port
D1 A2 I/O
C2 B1 I/O
D2 B2 I/O
B1 Vref_A — Reference supply voltage.
For proper device biasing, see Section 8 and Understanding the Bias Circuit for the LSF Family.
B2 Vref_B —
A2 EN I Enable input; connect to Vref_B and pull-up through a high resistor (200kΩ). See Using the Enable Pin with the LSF Family
A1 GND — Ground
(1) I= input, O = output