SLIS167 August   2015 TPIC2050

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 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 Serial I/F Write Timing Requirements
    7. 7.7 Serial I/F Read Timing Requirements
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Protect Functions
        1. 8.3.1.1 OVP
        2. 8.3.1.2 OCP and SCP
          1. 8.3.1.2.1 OCP for Step Driver
          2. 8.3.1.2.2 SCP
        3. 8.3.1.3 Thermal Protection (TSD)
        4. 8.3.1.4 Actuator Temperature Protection (ACTTIMER)
        5. 8.3.1.5 Prevent OVP 12 V (PREOVP-12V)
      2. 8.3.2 DAC Type
      3. 8.3.3 Example of 12-Bit DAC Sampling Rate for FCS/TRK/TLT
      4. 8.3.4 Digital Input Coding
    4. 8.4 Device Functional Modes
      1. 8.4.1 Differential Tilt Mode
      2. 8.4.2 Power-On Reset (POR)
        1. 8.4.2.1 RDY (Power Ready)
    5. 8.5 Programming
      1. 8.5.1 Serial Port Functional Description
      2. 8.5.2 Write Operation
      3. 8.5.3 Read Operation
      4. 8.5.4 Write and Read Operation
    6. 8.6 Register Maps
      1. 8.6.1 Register State Transition
      2. 8.6.2 DAC Register (12-Bit Write Only)
      3. 8.6.3 Control Register (8-Bit Read/Write)
      4. 8.6.4 Detailed 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. 8.6.4.16 REG75 8-Bit Control Register for Parm1 (offset = 75h) [reset = ]
        17. 8.6.4.17 REG76 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. 8.6.4.19 REG78 8-Bit Control Register for ActTemp (offset = 78h) [reset = ]
        20. 8.6.4.20 REG79 8-Bit Control Register for UVLOMon (offset = 79h) [reset = ]
        21. 8.6.4.21 REG7A 8-Bit Control Register for TSDMon (offset = 7Ah) [reset = ]
        22. 8.6.4.22 REG7B 8-Bit Control Register for OCPMon (offset = 7Bh) [reset = ]
        23. 8.6.4.23 REG7C 8-Bit Control Register for TempMon (offset = 7Ch) [reset = ]
        24. 8.6.4.24 REG7E 8-Bit Control Register for Version (offset = 7Eh) [reset = ]
        25. 8.6.4.25 REG7F 8-Bit Control Register for Status (offset = 7Fh) [reset = ]
        26. 8.6.4.26 REG61 8-Bit Control Register for SPM1 (offset = 61h) [reset = ]
        27. 8.6.4.27 REG62 8-Bit Control Register for SPM2 (offset = 62h) [reset = ]
        28. 8.6.4.28 REG6B 8-Bit Control Register for DisProt (offset = 6Bh) [reset = ]
        29. 8.6.4.29 REG6C 8-Bit Control Register for STPCfg (offset = 6Ch) [reset = ]
        30. 8.6.4.30 REG6E 8-Bit Control Register for UtilCfg (offset = 6Eh) [reset = ]
        31. 8.6.4.31 REG6F 8-Bit Control Register for MonitorSet (offset = 6Fh) [reset = ]
  9. 9 Application and Implementation
    1. 9.1 Application 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. 9.1.10 End Detect Function
      11. 9.1.11 Load Tray Lock Detect Function
      12. 9.1.12 Three-Beam Laser Diode Driver
      13. 9.1.13 Monitor Signal on GPOUT
      14. 9.1.14 Example Timing of Target Control System
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Serial Port Digital Interface
    • Serial Peripheral Interface (SPI)
    • 4-Wire Interface: SSZ, SCLK, SIMO, SOMI
    • Maximum Read/Write 35 MHz
    • 3.3-V Digital I/O
  • Actuator and Motor Driver
    • PWM Control With H-Bridge Output
    • Focus / Tracking / Tilt Actuator Driver With 12-Bit DAC Control
    • Sled Motor Drivers With Current Mode, 10-Bit DAC Control
    • Load Driver With 12-Bit DAC Control Selectable 5 V, 12 V
    • Stepping Motor Driver With 8-Bit PWM Control
  • Spindle Motor Driver
    • Low Rdson 0.3-Ω Typical MOSFET Output
    • Sensor-Less: Rotor Position Sense by Motor BEMF
    • Applicable for 10500 rpm Revolution Speed (Assumed in Using 12-Pole Motor)
    • 12-Bit Spindle DAC Programmed Via Serial Port
    • Self-Contained Inductive Position Sense and Startup
    • Auto-Brake Function Which Selects the Optimal Brake Mode in Each Rotation Speed
    • 1.5-A Maximum Continuous Current Excluding Thermal Issues
  • Utility Functions
    • Status Latch: Act Timer, SIF Error, PWR Monitor, Thermal Protection, and OCP Error
    • On-Chip Thermometer (15 to 165°C)
  • 3-Beam Laser Diode Driver
    • 120-mA Current Output With 11-Bit DAC Register or Analog Input (VLDDIN)
    • Slope-Controlled Current for Rapid Change
    • Select Output Port of CD, DVD, BD by Serial Bit
  • Protection
    • Individual Thermal Protect Circuit on SPM and Actuator Driver
    • Two Alert Levels: Pre-Detect and Detect in Thermal Protection
    • ACTTEMP: Monitor the Actuator Temperature Calculated from Integrating the DAC Value Set Up in the Past
    • Short-Circuit Protection in SPM, Sled, Load, Actuator, and Step-Driver Channel
    • Hardware Device Disable Pin, XRSTIN
    • Power Monitor by Undervoltage Lockout (UVLO) and Overvoltage Protection (OVP)
    • Tray-Lock Detection
    • PREOVP-12V: Prevent the 12-V OVP Detection by the Motor BEMF at SPM Brake

2 Applications

    Optical Disc Drive (Blu-ray, DVD, CD)

3 Description

The TPIC2050 is low-noise-type motor driver IC suitable for 12-V ODD. The 9-channel driver, IC controlled by serial interface, is optimum for driving a spindle motor, sled motor (stepping motor applicable), load motor, focus / tracking / tilt actuators, and stepping motor for the collimator lens.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPIC2050 HTSSOP (56) 6.10 mm × 14.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPIC2050 sch_lis167.gif

4 Revision History

DATE REVISION NOTES
August 2015 * Initial release.