ZHCSEQ5 August 2015 TPIC2050

PRODUCTION DATA. 

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. 说明 (续)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1Absolute Maximum Ratings
    2. 7.2ESD Ratings
    3. 7.3Recommended Operating Conditions
    4. 7.4Thermal Information
    5. 7.5Electrical Characteristics
    6. 7.6Serial I/F Write Timing Requirements
    7. 7.7Serial I/F Read Timing Requirements
    8. 7.8Typical Characteristics
  8. Detailed Description
    1. 8.1Overview
    2. 8.2Functional Block Diagram
    3. 8.3Feature Description
      1. 8.3.1Protect Functions
        1. 8.3.1.1OVP
        2. 8.3.1.2OCP and SCP
          1. 8.3.1.2.1OCP for Step Driver
          2. 8.3.1.2.2SCP
        3. 8.3.1.3Thermal Protection (TSD)
        4. 8.3.1.4Actuator Temperature Protection (ACTTIMER)
        5. 8.3.1.5Prevent OVP 12 V (PREOVP-12V)
      2. 8.3.2DAC Type
      3. 8.3.3Example of 12-Bit DAC Sampling Rate for FCS/TRK/TLT
      4. 8.3.4Digital Input Coding
    4. 8.4Device Functional Modes
      1. 8.4.1Differential Tilt Mode
      2. 8.4.2Power-On Reset (POR)
        1. 8.4.2.1RDY (Power Ready)
    5. 8.5Programming
      1. 8.5.1Serial Port Functional Description
      2. 8.5.2Write Operation
      3. 8.5.3Read Operation
      4. 8.5.4Write and Read Operation
    6. 8.6Register Maps
      1. 8.6.1Register State Transition
      2. 8.6.2DAC Register (12-Bit Write Only)
      3. 8.6.3Control Register (8-Bit Read/Write)
      4. 8.6.4Detailed Description of Registers
        1. 8.6.4.1 REG01 12-Bit DAC for Tilt (offset = 01h) [reset = ]
        2. 8.6.4.2 REG02 12-Bit DAC for Focus (offset = 02h) [reset = ]
        3. 8.6.4.3  REG03 12-Bit DAC for Tracking (offset = 03h) [reset = ]
        4. 8.6.4.4  REG04 12-Bit DAC for Sled1 (offset = 04h) [reset = ]
        5. 8.6.4.5  REG05 12-Bit DAC for Sled2 (offset = 05h) [reset = ]
        6. 8.6.4.6  REG06 12-Bit DAC for Stepping1 (offset = 06h) [reset = ]
        7. 8.6.4.7  REG07 12-Bit DAC for Stepping2 (offset = 07h) [reset = ]
        8. 8.6.4.8 REG08 12-Bit DAC for Spindle (offset = 08h) [reset = ]
        9. 8.6.4.9  REG09 12-Bit DAC for Load (offset = 09h) [reset = ]
        10. 8.6.4.10 REG0A 12-Bit DAC for Laser Diode Driver (offset = 0Ah) [reset = ]
        11. 8.6.4.11 REG70 8-Bit Control Register for DriverEna (offset = 70h) [reset = ]
        12. 8.6.4.12 REG71 8-Bit Control Register for FuncEna (offset = 71h) [reset = ]
        13. 8.6.4.13 REG72 8-Bit Control Register for ACTCfg (offset = 72h) [reset = ]
        14. 8.6.4.14 REG73 8-Bit Control Register for Parm0 (offset = 73h) [reset = ]
        15. 8.6.4.15 REG74 8-Bit Control Register for SIFCfg (offset = 74h) [reset = ]
        16. 8.6.4.16REG75 8-Bit Control Register for Parm1 (offset = 75h) [reset = ]
        17. 8.6.4.17REG76 8-Bit Control Register for WriteEna (offset = 76h) [reset = ]
        18. 8.6.4.18 REG77 8-Bit Control Register for ClrReg (offset = 77h) [reset = ]
        19. 8.6.4.19REG78 8-Bit Control Register for ActTemp (offset = 78h) [reset = ]
        20. 8.6.4.20REG79 8-Bit Control Register for UVLOMon (offset = 79h) [reset = ]
        21. 8.6.4.21REG7A 8-Bit Control Register for TSDMon (offset = 7Ah) [reset = ]
        22. 8.6.4.22REG7B 8-Bit Control Register for OCPMon (offset = 7Bh) [reset = ]
        23. 8.6.4.23REG7C 8-Bit Control Register for TempMon (offset = 7Ch) [reset = ]
        24. 8.6.4.24REG7E 8-Bit Control Register for Version (offset = 7Eh) [reset = ]
        25. 8.6.4.25REG7F 8-Bit Control Register for Status (offset = 7Fh) [reset = ]
        26. 8.6.4.26REG61 8-Bit Control Register for SPM1 (offset = 61h) [reset = ]
        27. 8.6.4.27REG62 8-Bit Control Register for SPM2 (offset = 62h) [reset = ]
        28. 8.6.4.28REG6B 8-Bit Control Register for DisProt (offset = 6Bh) [reset = ]
        29. 8.6.4.29REG6C 8-Bit Control Register for STPCfg (offset = 6Ch) [reset = ]
        30. 8.6.4.30REG6E 8-Bit Control Register for UtilCfg (offset = 6Eh) [reset = ]
        31. 8.6.4.31REG6F 8-Bit Control Register for MonitorSet (offset = 6Fh) [reset = ]
  9. Application and Implementation
    1. 9.1Application Information
      1. 9.1.1 Voltage Monitoring
      2. 9.1.2 Spindle Motor Driver Operating Sequence
      3. 9.1.3 Auto Short Brake Function
      4. 9.1.4 Spindle PWM Control
      5. 9.1.5 Spindle Driver Current Limiting Circuit
      6. 9.1.6 Sled Driver Part
      7. 9.1.7 Stepping Driver Part
      8. 9.1.8 Focus/Track/Tilt Driver Part
      9. 9.1.9 Load Driver Part
      10. 9.1.10End Detect Function
      11. 9.1.11Load Tray Lock Detect Function
      12. 9.1.12Three-Beam Laser Diode Driver
      13. 9.1.13Monitor Signal on GPOUT
      14. 9.1.14Example Timing of Target Control System
    2. 9.2Typical Application
      1. 9.2.1Design Requirements
      2. 9.2.2Detailed Design Procedure
      3. 9.2.3Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1Layout Guidelines
    2. 11.2Layout Example
  12. 12器件和文档支持
    1. 12.1社区资源
    2. 12.2商标
    3. 12.3静电放电警告
    4. 12.4Glossary
  13. 13机械、封装和可订购信息

1 特性

  • 串行端口数字接口
    • 串行外设接口 (SPI)
    • 4 线接口:SSZ、SCLK、SIMO、SOMI
    • 最大读写频率 35MHz
    • 3.3V 数字输入输出 (I/O)
  • 执行器和电机驱动器
    • 具有 H 桥输出的脉冲宽度调制 (PWM) 控制
    • 具有 12 位数模转换器 (DAC) 控制的聚焦/跟踪/倾斜执行器驱动器
    • 具有电流模式、10 位 DAC 控制的滑动电机驱动器
    • 具有 12 位 DAC 控制的负载驱动器可选 5V 或 12V
    • 具有 8 位 PWM 控制的步进电机驱动器
  • 主轴电机驱动器
    • 0.3Ω 低导通电阻、典型金属氧化物半导体场效应晶体管 (MOSFET) 输出
    • 无传感器:通过电机反电动势 (BEMF) 感测转子位置
    • 适用于 10500rpm 转速(假设使用 12 极点电机)
    • 通过串行端口编程设定的 12 位主轴 DAC
    • 独立的感应位置感测和启动
    • 自动制动功能,在每种转速下均可选择最佳制动模式
    • 最大持续电流为 1.5A,不存在散热问题
  • 实用功能
    • 状态锁存器:执行器定时器、SIF 错误、电源监视器、热保护和过流保护 (OCP) 故障
    • 片上温度计(15°C 至 165°C)
  • 3 波束激光二极管驱动器
    • 120mA 电流输出,通过 11 位 DAC 寄存器或模拟输入 (VLDDIN)
    • 通过斜率控制电流快速变化
    • 通过串行位选择光盘 (CD)、数字化视频光盘 (DVD)、蓝光光盘 (BD) 的输出端口
  • 保护
    • 同步永磁电机 (SPM) 和执行器驱动器上均配有独立热保护电路
    • 两个警报级别:热保护中的预检测和检测
    • ACTTEMP:监视由过去累积的 DAC 值计算得出的执行器温度
    • SPM、滑动电机、负载、执行器和步进驱动器通道中具有短路保护
    • 硬件器件禁用引脚,XRSTIN
    • 具有欠压锁定 (UVLO) 和过压保护 (OVP) 的电源监视器
    • 托盘锁定检测
    • PREOVP-12V:在 SPM 制动时防止通过电机 BEMF 进行 12V OVP 检测

2 应用

    光盘驱动器(蓝光碟、DVD、CD)

3 说明

TPIC2050 是一款适用于 12V ODD 的超低噪声电机驱动器集成电路 (IC)。该驱动器 IC 有 9 条通道且由串行接口控制,非常适用于驱动主轴电机、滑动电机(适用的步进电机)、负载电机以及针对准直透镜的聚焦/跟踪/倾斜执行器和步进电机。

器件信息(1)

器件型号封装封装尺寸(标称值)
TPIC2050HTSSOP (56)6.10mm x 14.00mm
  1. 要了解所有可用封装,请见数据表末尾的可订购产品附录。

简化电路原理图

TPIC2050 sch_lis167.gif

4 修订历史记录

日期修订版本注释
2015 年 8 月*最初发布。