SLLSFN5B
June 2023 – September 2025
ISO1228
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Power Ratings
5.6
Insulation Specifications
5.7
Safety-Related Certifications
5.8
Safety Limiting Values
5.9
Electrical Characteristics—DC Specification
5.10
Switching Characteristics—AC Specification
5.11
Typical Characteristics
6
Parameter Measurement Information
6.1
Test Circuits
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Surge Protection
7.3.2
Field Side LED Indication
7.3.3
Serial and Parallel Output option
7.3.4
Cyclic Redundancy Check (CRC)
7.3.5
FAULT Indication
7.3.6
Digital Low Pass Filter
7.3.7
SPI Register Map
7.3.8
SPI Timing - Non-Daisy Chain
7.3.9
SPI Timing - Daisy Chain
7.3.10
SPI Timing - Burst Mode
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Sinking Type Digital Inputs
8.2.2
Sourcing Type Digital Inputs
8.2.3
Sink/Source Type Digital Inputs
8.2.4
Design Requirements
8.2.4.1
Detailed Design Procedure
8.2.4.1.1
Current Limit
8.2.4.1.2
Voltage Thresholds
8.2.4.1.3
Wire-Break Detection
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DFB|38
MPSS151A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sllsfn5b_oa
sllsfn5b_pm
Data Sheet
ISO1228 Eight-Channel Isolated Digital Input With Current Limit and Diagnostics