UPD16879

DATA SHEET MOS INTEGRATED CIRCUIT µPD16879 MONOLITHIC QUAD H BRIDGE DRIVER CIRCUIT The µPD16879 is a monolithic quad H bridge driver IC that employs a CMOS control circuit and a MOSFET output circuit. Because it uses MOSFETs in its output stage, this driver IC consumes less power than conventional driver ICs that use bipolar transistors. Because the µPD16879 controls a motor by inputting serial data, its package has been shrunk and the number of pins reduced. As a result, the performance of the application set can be improved and the size of the set has been reduced. This IC employs a current-controlled 64-step micro step driving method that drives stepper motor with low vibration. The µPD16879 is a housed in a 38-pin shrink SOP to contribute to the miniaturization of application set. This IC can simultaneously drive two stepper motors and is ideal for the mechanisms of camcorders. FEATURES Four H bridge circuits employing power MOS FETs Current-controlled 64-step micro step driving Motor control by serial data (8 bits × 13 bytes) PWM-frequency, output current and number of output pulse can be setting by serial data. 3-V power supply. Minimum operating voltage: 2.7 V Low consumption current. VDD pin current (operating mode) Power save circuit bult in. VDD pin current (power save mode) : 100 µA (MAX.) VDD pin current (power save mode) : 300 µA (MAX.) 38-pin shrink SOP (7.62 mm (300)) fCLK: OFF state fCLK: 4.5 MHz input : 3 mA (MAX.) ORDERING INFORMATION Par...