SLUS872E
January 2009 – February 2019
UC1842A-SP
,
UC1844A-SP
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
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Electrical Characteristics (Radiation-Improved Devices)
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
UVLO
8.3.2
Reference
8.3.3
Totem-Pole Output
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Oscillator
9.2.2.2
Current Sensing and Limiting
9.2.2.3
Error Amplifier
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Feedback Traces
11.1.2
Input/Output Capacitors
11.1.3
Compensation Components
11.1.4
Traces and Ground Planes
11.2
Layout Example
12
Device and Documentation Support
12.1
Related Links
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
JG|8
MCER001B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slus872e_oa
7
Specifications