ZHCSQG8 October   2023 LP5811

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.6 Register Maps

This section provides a summary of the LP5811 register maps.

Table 9-5 Register Section/Block Access Type Codes
Access Type Code Description
Read Type
R R Read
RC R Read
C to Clear
R-0 R Read
-0 Returns 0s
Write Type
W W Write
W0CP W W
0C 0 to clear
P Requires privileged access
Reset or Default Value
-n Value after reset or the default value
Table 9-6 LP5811 Registers Map
Register Group Register Acronym Address(Hex.) Function Type
ChipEN Chip_en 000 Chip enable R/W
CONFIG Dev_config0 ~ Dev_config12 001 ~ 00D Device configuration registers R/W
Update CMD Update_cmd 010 Configuration update command: CONFIG registers will ONLY be effective by sending this command R/W
Start CMD Start_cmd 011 Autonomous control start command or restart with the latest setting R/W
Stop CMD Stop_cmd 012 LED driver stop command, LED driver goes to INITIAL state with this command from all the other states R/W
Pause CMD Pause_cmd 013 Autonomous control pause command R/W
Continue CMD Continue_cmd 014 Autonomous control continue command R/W
LED EN LED_EN1 ~ LED_EN2 020 ~ 021 LED enable registers R/W
Fault CLR Fault_Clear 022 Fault clear registers to clear TSD/LOD/LSD faults R/W
RESET Reset 023 Software reset W
DC_Manual DC0 ~ DC_D2 030 ~ 03F LED current setting at manual mode R/W
PWM_Manual PWM0 ~ PWM_D2 040 ~ 04F LED PWM setting at manual mode R/W
DC_Auto DC_Auto0 ~ DC_Auto_D2 050 ~ 05F LED current setting at autonomous mode R/W
LED0 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 080 ~ 099 LED0 Animation Engine Pattern parameters R/W
LED1 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 09A ~ 0B3 LED1 Animation Engine Pattern parameters R/W
LED2 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 0B4 ~ 0CD LED2 Animation Engine Pattern parameters R/W
LED3 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 0CE ~ 0E7 LED3 Animation Engine Pattern parameters R/W
LED_A0 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 0E8 ~ 101 LED_A0 Animation Engine Pattern parameters R/W
LED_A1 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 102 ~ 11B LED_A1 Animation Engine Pattern parameters R/W
LED_A2 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 11C ~ 135 LED_A2 Animation Engine Pattern parameters R/W
LED_B0 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 136 ~ 14F LED_B0 Animation Engine Pattern parameters R/W
LED_B1 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 150 ~ 169 LED_B1 Animation Engine Pattern parameters R/W
LED_B2 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 16A ~ 183 LED_B2 Animation Engine Pattern parameters R/W
LED_C0 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 184 ~ 19D LED_C0 Animation Engine Pattern parameters R/W
LED_C1 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 19E ~ 1B7 LED_C1 Animation Engine Pattern parameters R/W
LED_C2 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 1B8 ~ 1D1 LED_C2 Animation Engine Pattern parameters R/W
LED_D0 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 1D2 ~ 1EB LED_D0 Animation Engine Pattern parameters R/W
LED_D1 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 1EC ~ 205 LED_D1 Animation Engine Pattern parameters R/W
LED_D2 AEP Tp, PT, PWM1 ~ PWM5, T1 ~ T4 206 ~ 21F LED_D2 Animation Engine Pattern parameters R/W
STATUS TSD_Config_Status 300 TSD status and Configuration error indication register R
LOD_Status1 ~ LOD_Status2 301 ~ 302 LOD status registers R
LSD_Status1 ~ LSD_Status2 303 ~ 304 LSD status registers R
PWM_Internal0 ~ PWM_Internal_D2 305 ~ 314 Internal PWM values for LED0 ~ LED_D2 R
PATTERN_Status1 ~ PATTERN_Status8 315 ~ 31C AEP status registers to indicate pattern progress for LED0 ~ LED_D2 R