Gehäuseinformationen
| Gehäuse | Pins HTSSOP (DFD) | 56 |
| Betriebstemperaturbereich (°C) -20 to 75 |
| Gehäusemenge | Träger 2.000 | LARGE T&R |
Merkmale von TPIC2050
- 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
Beschreibung von TPIC2050
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.
The spindle motor driver part builds in the sensor-less logic that attains low-noise operation at start-up and while running. Motors or sensors, such as a Hall device, are not required by the starting circuit for self-starting, or for performing position detection by BEMF. As the output stage of all channels works in efficient PWM driving, low-power operation by PWM control is possible. Neutral zone-less control is possible for a focus / tracking / tilt actuator driver. In addition, the spindle part output current limiting circuit, thermal shutdown circuit, sled-end detection circuit, collimator lens end detection circuit, actuator protection, and three beam laser drivers are built in. The newly added built-in thermometer can measure IC temperature.