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TA7774PG Datasheet Stepping Motor Driver

Manufacturer: Toshiba

Overview: TA7774P/PG/F/FG TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA7774P/PG, TA7774F/FG, TA7774FAG Stepping Motor Driver IC The TA7774P/PG and TA7774F/FG/FAG are two-phase bipolar stepping motor driver ICs designed especially for 3.5- or 5.25-inch FDD head actuator drives. The ICs have a dual-bridge driver supporting the bipolar driving of induced loads, a power-saving circuit, and a standby circuit. They are ideal for achieving reduced set size and lower power consumption.

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General Description

Pin No.

Symbol 1 / (1) 2 / (3) 3 / (4) 4 / (F) 5 / (F) 6 / (5) 7 / (6) 8 / (8) 9 / (9) 10 / (10) 11 / (11) 12 / (F) 13 / (F) 14 / (14) 15 / (15) 16 / (16) VS2 A VCC IN A GND GND IN B PS VS2

Key Features

  • z One-chip two-phase bipolar stepping motor driver z Power saving operation is available. z Standby operation is available. Current consumption ≤ 115 μA z Built-in punch-through current restriction circuit for system reliability and noise suppression z TTL-compatible inputs INA, INB, and PS pins z High driving ability TA7774P/PG/F/FG : IO(START) 350 mA (MAX): VS1 ENABLE : IO(HOLD) 100 mA (MAX): VS2 ENABLE TA7774FAG : IO(START) 100 mA (MAX): VS1 ENABLE : IO(HOLD) 50 mA (MAX): VS2 ENABLE z Typical.

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