SNVSCC4 October   2023 LP5811

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Device Comparison
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
  9. 8 Typical Characteristics
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Synchronous Boost Converter
        1. 9.3.1.1 Undervoltage Lockout
        2. 9.3.1.2 Enable and Soft Start
        3. 9.3.1.3 Switching Frequency
        4. 9.3.1.4 Current Limit Operation
        5. 9.3.1.5 Boost PWM Mode
        6. 9.3.1.6 Boost PFM Mode
      2. 9.3.2 Analog Dimming
      3. 9.3.3 PWM Dimming
      4. 9.3.4 Autonomous Animation Engine Control
        1. 9.3.4.1 Animation Engine Pattern
        2. 9.3.4.2 Sloper
        3. 9.3.4.3 Animation Engine Unit (AEU)
        4. 9.3.4.4 Animation Pause Unit (APU)
      5. 9.3.5 Protections and Diagnostics
        1. 9.3.5.1 Overvoltage Protection
        2. 9.3.5.2 Output Short-to-Ground Protection
        3. 9.3.5.3 LED Open Detections
        4. 9.3.5.4 LED Short Detections
        5. 9.3.5.5 Thermal Shutdown
    4. 9.4 Device Functional Modes
    5. 9.5 Programming
    6. 9.6 Register Maps
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Application
      2. 10.2.2 Design Parameters
      3. 10.2.3 Detailed Design Procedure
        1. 10.2.3.1 Inductor Selection
        2. 10.2.3.2 Output Capacitor Selection
        3. 10.2.3.3 Input Capacitor Selection
        4. 10.2.3.4 Program Procedure
        5. 10.2.3.5 Programming Example
      4. 10.2.4 Application Performance Plots
    3. 10.3 Power Supply Recommendations
    4. 10.4 Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8 Typical Characteristics

Unless specified otherwise, typical characteristics apply over the full ambient temperature range (–40°C < TA < +85°C ), VIN = 3.6 V, CIN = 1 μF, COUT = 1 μF

GUID-20230920-SS0I-6VDM-SDP6-F4FPHFMMZTTK-low.svgFigure 8-1 VIN UVLO Rising and Falling Thresholds
GUID-20230920-SS0I-NPKH-C8TT-BC6PGLLHKBN7-low.svgFigure 8-3 Current Sinks Voltage vs Current(MC=0)
GUID-20230920-SS0I-K6B9-KRZ2-PM4JQGWFQLZP-low.svgFigure 8-5 VSAT vs Temperature
GUID-20230920-SS0I-8JXQ-PFJ3-RLSKMKXZXD2B-low.svgFigure 8-7 Channel-to-Channel Current Accuracy vs Temperature(MC=1)
GUID-20230920-SS0I-WVG0-BNZF-DFXXDHXGNKWJ-low.svgFigure 8-9 Boost Low-side MOSFET RDSON
GUID-20230920-SS0I-1CHD-XVGF-1GJZRBKZSGBH-low.svgFigure 8-2 VOUT OVP Thresholds
GUID-20230920-SS0I-5CPR-XBMK-G6Q6XQT6JLDB-low.svgFigure 8-4 Current Sinks Voltage vs Current(MC=1)
GUID-20230920-SS0I-CS3J-K8R1-SXPJ9WBBKZTZ-low.svgFigure 8-6 Channel-to-Channel Current Accuracy vs Temperature(MC=0)
GUID-20230920-SS0I-ZSLQ-SD64-TJX6R1K72WGC-low.svgFigure 8-8 Boost High-side MOSFET RDSON
GUID-20230920-SS0I-NDVJ-JPNZ-WRKGVGBMSGHD-low.svgFigure 8-10 Scan Line Switch MOSFET RDSON