TB6674PG, TB6674FG, and TB6674FAG are stepping motor driver ICs with MOS output transistors.
● The ICs can control two-phase stepping motor forward and reverse by bipolar driving. They have a power-saving circuit and a standby circuit.
●Features
●They are similar substituting products of TA7774PG, TA7774FG, and TA7774FAG. Both products have same packages and same pin assignments.
●One-chip two-phase bipolar stepping motor driver (including two bridge drivers)
●Power saving operation is available.
●Standby operation is available. Current consumption ≤20 μA (typ.)
●Built-in punch-through current restriction circuit for system ability and noise suppression.
●TTL-compatible inputs INA, INB, PS, and Vs2B terminals
●ON resistance PS = L : 2.9 Ω(Typ.)
● PS = H: 7.9 Ω(Typ.)
●High driving ability.
● : IO (START)350 mA (MAX.) : VS1 ENABLE
● : IO (HOLD)100 mA (MAX.) : VS2 ENABLE
● : IO (START)100 mA (MAX.) : VS1 ENABLE
● : IO (HOLD)50 mA (MAX.) : VS2 ENABLE
●Typical PKG DIP16 pin, HSOP16 pin, SSOP16 pin
●GND terminal = HEAT SINK
●Process :BiCD0.6 (30 V)
●Over current shutdown circuit (ISD).
●Thermal shutdown circuit (TSD).
●Undervoltage lockout circuit (UVLO).
●Pull-down resistance for input terminal (250 kΩ).
