SLVSDU6D
July 2017 – November 2019
ATL431LI
,
ATL432LI
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Thermal Information
7.4
Recommended Operating Conditions
7.5
Electrical Characteristics
8
Typical Characteristics
9
Parameter Measurement Information
9.1
Temperature Coefficient
9.2
Dynamic Impedance
10
Detailed Description
10.1
Overview
10.2
Functional Block Diagram
10.3
Feature Description
10.4
Device Functional Modes
10.4.1
Open Loop (Comparator)
10.4.2
Closed Loop
11
Applications and Implementation
11.1
Application Information
11.2
Typical Applications
11.2.1
Comparator With Integrated Reference
11.2.1.1
Design Requirements
11.2.1.2
Detailed Design Procedure
11.2.1.2.1
Basic Operation
11.2.1.2.1.1
Overdrive
11.2.1.2.2
Output Voltage and Logic Input Level
11.2.1.2.2.1
Input Resistance
11.2.1.3
Application Curve
11.2.2
Precision Constant Current Sink
11.2.2.1
Design Requirements
11.2.2.2
Detailed Design Procedure
11.2.2.2.1
Basic Operation
11.2.2.2.1.1
Output Current Range and Accuracy
11.2.2.2.2
Power Consumption
11.2.3
Shunt Regulator/Reference
11.2.3.1
Design Requirements
11.2.3.2
Detailed Design Procedure
11.2.3.2.1
Programming Output/Cathode Voltage
11.2.3.2.2
Total Accuracy
11.2.3.2.3
Stability
11.2.3.2.4
Start-Up Time
11.2.3.3
Application Curve
11.2.4
Isolated Flyback with Optocoupler
11.2.4.1
Design Requirements
11.2.4.1.1
Detailed Design Procedure
11.2.4.1.1.1
ATL431LI Biasing
11.2.4.1.1.2
Resistor Feedback Network
11.3
System Examples
12
Power Supply Recommendations
13
Layout
13.1
Layout Guidelines
13.2
SOT23-3 Layout Example
13.3
X2SON (DQN) Layout Example
13.4
Thermal Considerations
14
Device and Documentation Support
14.1
Documentation Support
14.1.1
Device Nomenclature
14.1.2
Related Documentation
14.2
Related Links
14.3
Receiving Notification of Documentation Updates
14.4
Community Resources
14.5
Trademarks
14.6
Electrostatic Discharge Caution
14.7
Glossary
15
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DBZ|3
MPDS108F
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsdu6d_oa
slvsdu6d_pm
14.1
Documentation Support