SNVSCC4
October 2023
LP5811
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison
6
Pin Configuration and 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
Timing Requirements
8
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Synchronous Boost Converter
9.3.1.1
Undervoltage Lockout
9.3.1.2
Enable and Soft Start
9.3.1.3
Switching Frequency
9.3.1.4
Current Limit Operation
9.3.1.5
Boost PWM Mode
9.3.1.6
Boost PFM Mode
9.3.2
Analog Dimming
9.3.3
PWM Dimming
9.3.4
Autonomous Animation Engine Control
9.3.4.1
Animation Engine Pattern
9.3.4.2
Sloper
9.3.4.3
Animation Engine Unit (AEU)
9.3.4.4
Animation Pause Unit (APU)
9.3.5
Protections and Diagnostics
9.3.5.1
Overvoltage Protection
9.3.5.2
Output Short-to-Ground Protection
9.3.5.3
LED Open Detections
9.3.5.4
LED Short Detections
9.3.5.5
Thermal Shutdown
9.4
Device Functional Modes
9.5
Programming
9.6
Register Maps
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Application
10.2.2
Design Parameters
10.2.3
Detailed Design Procedure
10.2.3.1
Inductor Selection
10.2.3.2
Output Capacitor Selection
10.2.3.3
Input Capacitor Selection
10.2.3.4
Program Procedure
10.2.3.5
Programming Example
10.2.4
Application Performance Plots
10.3
Power Supply Recommendations
10.4
Layout
10.4.1
Layout Guidelines
10.4.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
Package Options
Mechanical Data (Package|Pins)
DRR|12
MPSS085A
YBH|12
Thermal pad, mechanical data (Package|Pins)
DRR|12
PPTD337
Orderable Information
snvscc4_oa
10.4.2
Layout Example
Figure 10-20
LP5811
DSBGA Package Layout Example