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.
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|Part number||Order||Motor driver channels||Integrated supply||Operating supply (V)||Driver supply voltage (V)||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)|
||9||3 Laser Diode Drivers||5||12||-20 to 75||HTSSOP | 56||56HTSSOP: 113 mm2: 8.1 x 14 (HTSSOP | 56)|
||9||2 DCDC Converters||5||5||-20 to 75||HTSSOP | 56||56HTSSOP: 113 mm2: 8.1 x 14 (HTSSOP | 56)|
||7||1 LDO Predriver||5||5||-20 to 75||TSSOP | 44||44TSSOP: 71 mm2: 6.4 x 11.15 (TSSOP | 44)|
||7||1 DCDC Converter||5||5||-20 to 75||TSSOP | 38||38TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 38)|
||9||1 LDO Predriver||5||12||-20 to 75||HTSSOP | 56||56HTSSOP: 113 mm2: 8.1 x 14 (HTSSOP | 56)|