ZHCSGU2A July   2017  – September 2017 LP5569

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. Device Comparison Table
  6. Pin Configuration and Functions
  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  Charge-Pump Electrical Characteristics
    7. 7.7  LED Current Sinks Electrical Characteristics
    8. 7.8  Logic Interface Characteristics
    9. 7.9  Timing Requirements (EN/PWM)
    10. 7.10 Serial-Bus Timing Requirements (SDA, SCL), See
    11. 7.11 External Clock Timing Requirements (CLK), See
    12. 7.12 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Programming
      2. 8.1.2 Energy Efficiency
      3. 8.1.3 Protection Features
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Current Sinks
        1. 8.3.1.1 Overview
        2. 8.3.1.2 Controlling the Low-Side Current Sinks
          1. 8.3.1.2.1 Direct Register Control
          2. 8.3.1.2.2 Controlling by Program Execution Engines
          3. 8.3.1.2.3 Master Fader Control
            1. 8.3.1.2.3.1 PWM Master Fader on EN/PWM Pin
            2. 8.3.1.2.3.2 PWM Master Fader Resolution and Input Frequency Range
            3. 8.3.1.2.3.3 PWM Master Fader Hysteresis
          4. 8.3.1.2.4 EN/PWM Input Timeout
      2. 8.3.2 Charge Pump
        1. 8.3.2.1 Overview
        2. 8.3.2.2 Pre-Regulation
        3. 8.3.2.3 Input Current Limit
        4. 8.3.2.4 Output Discharge
        5. 8.3.2.5 Controlling the Charge Pump
        6. 8.3.2.6 LED Forward Voltage Monitoring
      3. 8.3.3 Energy Efficiency
        1. 8.3.3.1 LED Powering
      4. 8.3.4 Automatic Power-Save Mode
      5. 8.3.5 Protection Features
        1. 8.3.5.1 Thermal Shutdown (TSD)
        2. 8.3.5.2 Undervoltage Lockout (UVLO)
        3. 8.3.5.3 Power-On Reset (POR)
        4. 8.3.5.4 LED Fault Detection
          1. 8.3.5.4.1 Open LED
          2. 8.3.5.4.2 Shorted LED
      6. 8.3.6 Clock Generation and Synchronization
      7. 8.3.7 GPIO/TRIG/INT Multifunctional I/O
    4. 8.4 Device Functional Modes
      1. 8.4.1 Modes Of Operation
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
        1. 8.5.1.1 Data Validity
        2. 8.5.1.2 Start and Stop Conditions
        3. 8.5.1.3 Transferring Data
        4. 8.5.1.4 I2C Slave Addressing
        5. 8.5.1.5 Control Register Write Cycle
        6. 8.5.1.6 Control Register Read Cycle
        7. 8.5.1.7 Auto-Increment Feature
      2. 8.5.2 Execution Engine Programming
        1. 8.5.2.1 SRAM Memory
        2. 8.5.2.2 Variables
        3. 8.5.2.3 Instruction Set
        4. 8.5.2.4 LED Driver Instructions
          1. 8.5.2.4.1 Ramp
          2. 8.5.2.4.2 Ramp Instruction Application Example
          3. 8.5.2.4.3 Set_PWM
          4. 8.5.2.4.4 Wait
        5. 8.5.2.5 LED Mapping Instructions
          1. 8.5.2.5.1  LOAD_START and LOAD_END
          2. 8.5.2.5.2  MAP_START
          3. 8.5.2.5.3  MAP_SEL
          4. 8.5.2.5.4  MAP_CLR
          5. 8.5.2.5.5  MAP_NEXT
          6. 8.5.2.5.6  LOAD_NEXT
          7. 8.5.2.5.7  MAP_PREV
          8. 8.5.2.5.8  LOAD_PREV
          9. 8.5.2.5.9  MAP_ADDR
          10. 8.5.2.5.10 LOAD_ADDR
        6. 8.5.2.6 Branch Instructions
          1. 8.5.2.6.1 BRANCH
          2. 8.5.2.6.2 INT
          3. 8.5.2.6.3 RST
          4. 8.5.2.6.4 END
          5. 8.5.2.6.5 TRIGGER and TRIG_CLEAR
          6. 8.5.2.6.6 JNE, JGE, JL, and JE
        7. 8.5.2.7 Data Transfer and Arithmetic Instructions
          1. 8.5.2.7.1 LD
          2. 8.5.2.7.2 ADD
          3. 8.5.2.7.3 SUB
    6. 8.6 Register Maps
      1. 8.6.1 LP5569_MAP Registers
        1. 8.6.1.1  CONFIG Register (Address = 0h) [reset = 0h]
        2. 8.6.1.2  LED_ENGINE_CONTROL1 Register (Address = 1h) [reset = 0h]
        3. 8.6.1.3  LED_ENGINE_CONTROL2 Register (Address = 2h) [reset = 0h]
        4. 8.6.1.4  LED0_CONTROL Register (Address = 7h) [reset = 0h]
        5. 8.6.1.5  LED1_CONTROL Register (Address = 8h) [reset = 0h]
        6. 8.6.1.6  LED2_CONTROL Register (Address = 9h) [reset = 0h]
        7. 8.6.1.7  LED3_CONTROL Register (Address = Ah) [reset = 0h]
        8. 8.6.1.8  LED4_CONTROL Register (Address = Bh) [reset = 0h]
        9. 8.6.1.9  LED5_CONTROL Register (Address = Ch) [reset = 0h]
        10. 8.6.1.10 LED6_CONTROL Register (Address = Dh) [reset = 0h]
        11. 8.6.1.11 LED7_CONTROL Register (Address = Eh) [reset = 0h]
        12. 8.6.1.12 LED8_CONTROL Register (Address = Fh) [reset = 0h]
        13. 8.6.1.13 LED0_PWM Register (Address = 16h) [reset = 0h]
        14. 8.6.1.14 LED1_PWM Register (Address = 17h) [reset = 0h]
        15. 8.6.1.15 LED2_PWM Register (Address = 18h) [reset = 0h]
        16. 8.6.1.16 LED3_PWM Register (Address = 19h) [reset = 0h]
        17. 8.6.1.17 LED4_PWM Register (Address = 1Ah) [reset = 0h]
        18. 8.6.1.18 LED5_PWM Register (Address = 1Bh) [reset = 0h]
        19. 8.6.1.19 LED6_PWM Register (Address = 1Ch) [reset = 0h]
        20. 8.6.1.20 LED7_PWM Register (Address = 1Dh) [reset = 0h]
        21. 8.6.1.21 LED8_PWM Register (Address = 1Eh) [reset = 0h]
        22. 8.6.1.22 LED0_CURRENT Register (Address = 22h) [reset = AFh]
        23. 8.6.1.23 LED1_CURRENT Register (Address = 23h) [reset = AFh]
        24. 8.6.1.24 LED2_CURRENT Register (Address = 24h) [reset = AFh]
        25. 8.6.1.25 LED3_CURRENT Register (Address = 25h) [reset = AFh]
        26. 8.6.1.26 LED4_CURRENT Register (Address = 26h) [reset = AFh]
        27. 8.6.1.27 LED5_CURRENT Register (Address = 27h) [reset = AFh]
        28. 8.6.1.28 LED6_CURRENT Register (Address = 28h) [reset = AFh]
        29. 8.6.1.29 LED7_CURRENT Register (Address = 29h) [reset = AFh]
        30. 8.6.1.30 LED8_CURRENT Register (Address = 2Ah) [reset = AFh]
        31. 8.6.1.31 MISC Register (Address = 2Fh) [reset = 40h]
        32. 8.6.1.32 ENGINE1_PC Register (Address = 30h) [reset = 0h]
        33. 8.6.1.33 ENGINE2_PC Register (Address = 31h) [reset = 0h]
        34. 8.6.1.34 ENGINE3_PC Register (Address = 32h) [reset = 0h]
        35. 8.6.1.35 MISC2 Register (Address = 33h) [reset = 2h]
        36. 8.6.1.36 ENGINE_STATUS Register (Address = 3Ch) [reset = 80h]
        37. 8.6.1.37 IO_CONTROL Register (Address = 3Dh) [reset = 2h]
        38. 8.6.1.38 VARIABLE_D Register (Address = 3Eh) [reset = 0h]
        39. 8.6.1.39 RESET Register (Address = 3Fh) [reset = 0h]
        40. 8.6.1.40 ENGINE1_VARIABLE_A Register (Address = 42h) [reset = 0h]
        41. 8.6.1.41 ENGINE2_VARIABLE_A Register (Address = 43h) [reset = 0h]
        42. 8.6.1.42 ENGINE3_VARIABLE_A Register (Address = 44h) [reset = 0h]
        43. 8.6.1.43 MASTER_FADER1 Register (Address = 46h) [reset = 0h]
        44. 8.6.1.44 MASTER_FADER2 Register (Address = 47h) [reset = 0h]
        45. 8.6.1.45 MASTER_FADER3 Register (Address = 48h) [reset = 0h]
        46. 8.6.1.46 MASTER_FADER_PWM Register (Address = 4Ah) [reset = 0h]
        47. 8.6.1.47 ENGINE1_PROG_START Register (Address = 4Bh) [reset = 0h]
        48. 8.6.1.48 ENGINE2_PROG_START Register (Address = 4Ch) [reset = 0h]
        49. 8.6.1.49 ENGINE3_PROG_START Register (Address = 4Dh) [reset = 0h]
        50. 8.6.1.50 PROG_MEM_PAGE_SELECT Register (Address = 4Fh) [reset = 0h]
        51. 8.6.1.51 PROGRAM_MEM_00 Register (Address = 50h) [reset = 0h]
        52. 8.6.1.52 PROGRAM_MEM_01 Register (Address = 51h) [reset = 0h]
        53. 8.6.1.53 PROGRAM_MEM_02 Register (Address = 52h) [reset = 0h]
        54. 8.6.1.54 PROGRAM_MEM_03 Register (Address = 53h) [reset = 0h]
        55. 8.6.1.55 PROGRAM_MEM_04 Register (Address = 54h) [reset = 0h]
        56. 8.6.1.56 PROGRAM_MEM_05 Register (Address = 55h) [reset = 0h]
        57. 8.6.1.57 PROGRAM_MEM_06 Register (Address = 56h) [reset = 0h]
        58. 8.6.1.58 PROGRAM_MEM_07 Register (Address = 57h) [reset = 0h]
        59. 8.6.1.59 PROGRAM_MEM_08 Register (Address = 58h) [reset = 0h]
        60. 8.6.1.60 PROGRAM_MEM_09 Register (Address = 59h) [reset = 0h]
        61. 8.6.1.61 PROGRAM_MEM_10 Register (Address = 5Ah) [reset = 0h]
        62. 8.6.1.62 PROGRAM_MEM_11 Register (Address = 5Bh) [reset = 0h]
        63. 8.6.1.63 PROGRAM_MEM_12 Register (Address = 5Ch) [reset = 0h]
        64. 8.6.1.64 PROGRAM_MEM_13 Register (Address = 5Dh) [reset = 0h]
        65. 8.6.1.65 PROGRAM_MEM_14 Register (Address = 5Eh) [reset = 0h]
        66. 8.6.1.66 PROGRAM_MEM_15 Register (Address = 5Fh) [reset = 0h]
        67. 8.6.1.67 PROGRAM_MEM_16 Register (Address = 60h) [reset = 0h]
        68. 8.6.1.68 PROGRAM_MEM_17 Register (Address = 61h) [reset = 0h]
        69. 8.6.1.69 PROGRAM_MEM_18 Register (Address = 62h) [reset = 0h]
        70. 8.6.1.70 PROGRAM_MEM_19 Register (Address = 63h) [reset = 0h]
        71. 8.6.1.71 PROGRAM_MEM_20 Register (Address = 64h) [reset = 0h]
        72. 8.6.1.72 PROGRAM_MEM_21 Register (Address = 65h) [reset = 0h]
        73. 8.6.1.73 PROGRAM_MEM_22 Register (Address = 66h) [reset = 0h]
        74. 8.6.1.74 PROGRAM_MEM_23 Register (Address = 67h) [reset = 0h]
        75. 8.6.1.75 PROGRAM_MEM_24 Register (Address = 68h) [reset = 0h]
        76. 8.6.1.76 PROGRAM_MEM_25 Register (Address = 69h) [reset = 0h]
        77. 8.6.1.77 PROGRAM_MEM_26 Register (Address = 6Ah) [reset = 0h]
        78. 8.6.1.78 PROGRAM_MEM_27 Register (Address = 6Bh) [reset = 0h]
        79. 8.6.1.79 PROGRAM_MEM_28 Register (Address = 6Ch) [reset = 0h]
        80. 8.6.1.80 PROGRAM_MEM_29 Register (Address = 6Dh) [reset = 0h]
        81. 8.6.1.81 PROGRAM_MEM_30 Register (Address = 6Eh) [reset = 0h]
        82. 8.6.1.82 PROGRAM_MEM_31 Register (Address = 6Fh) [reset = 0h]
        83. 8.6.1.83 ENGINE1_MAPPING1 Register (Address = 70h) [reset = 0h]
        84. 8.6.1.84 ENGINE1_MAPPING2 Register (Address = 71h) [reset = 0h]
        85. 8.6.1.85 ENGINE2_MAPPING1 Register (Address = 72h) [reset = 0h]
        86. 8.6.1.86 ENGINE2_MAPPING2 Register (Address = 73h) [reset = 0h]
        87. 8.6.1.87 ENGINE3_MAPPING1 Register (Address = 74h) [reset = 0h]
        88. 8.6.1.88 ENGINE3_MAPPING2 Register (Address = 75h) [reset = 0h]
        89. 8.6.1.89 PWM_CONFIG Register (Address = 80h) [reset = 4h]
        90. 8.6.1.90 LED_FAULT1 Register (Address = 81h) [reset = 0h]
        91. 8.6.1.91 LED_FAULT2 Register (Address = 82h) [reset = 0h]
        92. 8.6.1.92 GENERAL_FAULT Register (Address = 83h) [reset = 4h]
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Single LP5569 Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Using Multiple LP5569 Devices
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Flying Capacitor Placement
      2. 11.1.2 Output Capacitor Placement
      3. 11.1.3 Input Capacitor Placement
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
订购信息

特性

  • 电源电压范围:2.5V–5.5V
  • 九个高精度电流源
    • 每个通道最大 25.5mA
    • 8 位独立的电流控制
    • 12 位 20kHz 内部单独 PWM 控制(无音频噪声)
  • 三个可编程 LED Engines
    • 独立照明控制(无有源微控制器控制)
    • 在多个器件之间实现同步
    • SRAM 存储器中具有多达 256 条指令,用于存储照明图案序列
    • 与 LP5523 和 LP55231 器件兼容的命令集
  • 灵活的调光控制
    • I2C 调光控制
    • PWM 直接输入调光
    • PWM 输入频率:100Hz 至 20kHz
  • 用于通过低电池电压驱动高 VF LED 的自适应高效电荷泵控制
  • 主增益调节器控制通过仅对一个寄存器进行写入来对多个 LED 进行调光,从而降低 I2C 总线流量
  • 2µA 低待机电流,在自动省电模式下为 10µA(当 LED 不活动时)
  • POR、UVLO 和 TSD 保护

应用

    用于以下设备的 LED 照明、指示灯和闪烁光:

    • 智能扬声器
    • 智能家用电器
    • 门铃
    • 电子锁
    • 烟雾探测器
    • 恒温器
    • 机顶盒
    • 智能路由器
    • 蓝牙®耳机
    • 手机

说明

LP5569 器件是一款可编程、易于使用的 9 通道 I2C LED 驱动器,用于为各种 应用制造灯光效果。LED 驱动器配备了一个用于存储用户编程的序列的内部 SRAM 存储器,以及三个允许在无处理器控制的情况下运行的可编程 LED Engines。将处理器置于睡眠模式时,自主运行可以降低系统功耗。

高效电荷泵支持通过高 VF(甚至通过 2.5V 输入电压)驱动 LED。LP5569 LED 驱动器可以根据 LED 正向电压要求自主选择最佳的电荷泵增益,从而在宽工作电压范围内保持高效率。

当 LED 未激活时,LP5569 器件进入省电模式,从而显著降低空闲电流消耗。灵活的数字接口允许连接多达八个 LP5569 器件,每个器件在同一系统中具有唯一的 I2C 从器件地址,从而支持所有器件之间的灯光效果同步。

器件信息(1)

器件型号封装封装尺寸(标称值)
LP5569WQFN (24)4.00mm x 4.00mm
  1. 如需了解所有可用封装,请参阅数据表末尾的可订购产品附录。

简化电路原理图

LP5569 typ_app2_snvsap8.gif

修订历史记录

Changes from * Revision (July 2017) to A Revision

  • Added typical curvesGo