UPD168116A

DATA SHEET MOS INTEGRATED CIRCUIT µ PD168116A 7-CHANNEL H-BRIDGE DRIVER WITH A MICRO STEP FUNCTION SUPPORTING PULSE INPUT DESCRIPTION The µ PD168116A is a 7-channel H-bridge driver with a micro step function supporting pulse input that consists of a CMOS control circuit and a MOS output stage. It can reduce the current consumption and the voltage loss at the output stage compared with a conventional driver using bipolar transistors, thanks to employment of a MOS process. The µ PD168116A can drive a stepping motor by inputting pulses, so that the number of signal lines necessary for controlling the motor can be decreased. The package is a 56-pin WQFN that helps reduce the mounting area and height. The µ PD168116A can be used to drive two stepping motors, or two DC motors and one coil. FEATURES Seven H-bridge circuits employing power MOSFET Low-voltage driving VDD = 2.7 to 3.6 V VM = 2.7 to 5.5 V Output on-state resistance: 1.0 Ω TYP., 1.5 Ω MAX. (sum of top and bottom stage, ch1 to ch4, and ch7) 1.5 Ω TYP., 2.0 Ω MAX. (sum of top and bottom stage, ch5 and ch6) PWM output (ch1 to ch6) , linear output (ch7) Output current DC current: 0.4 A/ch (when each channel is used independently) Peak current: 0.7 A/ch (when each channel is used independently) DC current: 0.5 A/ch (when used independently) Peak current: 0.7 A/ch (when used independently) Input logic frequency: 100 kHz supported Undervoltage lockout circuit Shuts down the internal circuit ...