TA7774F

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. 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 PKG DIP16 pin, HSOP16 pin, and SSOP16 pin z GND pin = heatsink TA7774PG/FG-FAG: The TA7774PG/FG/FAG is a lead-free (Pb-free) product. The following conditions apply to solderability: *Solderability 1. Use of Sn-37Pb solder bath *solder bath temperature = 230°C *dipping time = 5 seconds *number of times = once *use of R-type flux 2. Use of Sn-3.0Ag-0.5Cu solder bath *solder bath temperature = 245°C *dipping time = 5 seconds *number of times = once *use of R-type flux TA7774P/PG TA7774F/FG TA77...