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SI-7510
Application Information SI-7510 5-Phase New Pentagon Stepper Motor Pre-Driver IC Introduction The SI-7510 is a pre-driver IC for driving 5-phase stepper motors wound in the New Pentagon configuration (driver circuit design patented by Oriental Motor Co., Ltd.). Direct external control of motor driving functions are synchronized by the built-in sequencer to an applied clock input (CL) signal. The SI-7510 drive is implemented with a user-configurable output stage consisting of dual N-channel power MOSFETs. This results in lower thermal resistance and greater efficiency. Features and Benefits • Main supply voltage, VCC1 : 10 to 42 V • Logic supply voltage, VCC2 : 3 to 5.5 V • External forward and backward motor rotation control via CW/CCW input • External selection of 4-phase (full step) and 4-5–phase (half step) driving via F/H pin • Output enable/disable control via Enable pin (internal sequencer function remains active during Disable state, monitoring the clock input (CL) for automatic sequencing) • Built-in charge pump circuit for driving external high-side N-channel MOSFETs of all output phases • Self-excitation constant current control set by external R-C circuit time constant on RC input • Maximum output current set by the SI-7510 and the combined rating of the dual external MOSFET array as follows: Output Current IO (max) Recommended MOSFET Array SLA5073 and SLA5074 Sanken 7A SLA5065 and SLA5068 Figure 1. SI-7510 package is a 30-pin, fully molded DIP, with a 1.778 mm pin pitch. Manufacturer 6A Not to scale Sanken SI-7510-AN, Rev. 3 SANKEN ELECTRIC CO., LTD. http://www.sanken-ele.co.jp/en/ March 2008
SANKEN
サンケン電気株式会社
日本
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