DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16818
MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT
DESCRIPTION The µPD16818 is a monolithic dual H bridge driver IC which uses N-channel power MOS FETs in its output stage.
By
employing the power MOS FETs for the output stage, this driver circuit has a substantially improved saturation
voltage and power consumption as compared with conventional driver circuits that use bipolar transistors.
In addition, the drive current can be adjusted by an external resistor in power-saving mode.
The µPD16818 is therefore ideal as the driver circuit of a 2-phase excitation, bipolar-driven stepping motor for the head actuator of an FDD.
FEATURES • Compatible with 3V-/5V- sup...