TB6674PG(C,8,Z,HZ)

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

   1. They are similar substituting products of TA7774PG,TA7774FG, and TA7774FAG. Both products have same packages and same pin assignments.

   2. One-chip two-phase bipolar stepping motor driver (including two bridge drivers)

   3. Power saving operation is available.

   4. Standby operation is available. Current consumption ≤ 20 μA (typ.)

   5. Built-in punch-through current restriction circuit for system reliability and noise suppression.

   5. TTL-compatible inputs INA, INB, PS, and Vs2B terminals

   6. ON resistance PS = L : 2.9 Ω (Typ.) PS = H: 7.9 Ω (Typ.)

   7. High driving ability.

         <TB6674PG/FG>

                : IO (START) 350 mA (MAX.) : VS1 ENABLE

                : IO (HOLD) 100 mA (MAX.) : VS2 ENABLE

         <TB6674FAG>

                : IO (START) 100 mA (MAX.) : VS1 ENABLE

                : IO (HOLD) 50 mA (MAX.) : VS2 ENABLE

   8. Typical PKG DIP16 pin, HSOP16 pin, SSOP16 pin

   9. GND terminal = HEAT SINK

 10. Process :BiCD0.6 (30 V)

 11. Over current shutdown circuit (ISD).

 12. Thermal shutdown circuit (TSD).

 13. Undervoltage lockout circuit (UVLO).

 14. Pull-down resistance for input terminal (250 kΩ).