UPD16878 Datasheet, PDF (1/32 Pages) NEC – MONOLITHIC QUAD H BRIDGE DRIVER CIRCUIT

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16878
MONOLITHIC QUAD H BRIDGE DRIVER CIRCUIT
DESCRIPTION
The µPD16878 is a monolithic quad H bridge driver IC that employs a CMOS control circuit and a MOS FET
output circuit. Because it uses MOS FETs in its output stage, this driver IC consumes less power than conventional
driver ICs that use bipolar transistors.
Because the µPD16878 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.
The µPD16878 employs a current-controlled 64-step micro step driving method that drives stepper motor with low
vibration.
The µPD16878 is housed in a 38-pin plastic shrink SOP to contribute to the miniaturization of the application set.
The µPD16878 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 bytes x 8 bits) (original oscillation: 4-MHz input)
Data is input with the LSB first.
EVR reference setting voltage: 100 to 250 mV (@VREF = 250 mV) ... 4-bit data input (10-mV step)
Chopping frequency: 32 to 124 kHz ... 5-bit data input (4-kHz step)
Original oscillation division or internal oscillation selectable
Number of pulses in 1 VD: 0 to 126 pulses ... 6 bits + 2-bit data input (2 pulses/step)
Step cycle: 0.25 to 8191.75 µs ... 15-bit data input (0.25- µs step)
• 3-V power supply. Minimum operating voltage: 2.7 V (MIN.)
• Low current consumption IDD: 3.0 mA (MAX.), IDD (RESET): 100 µA (MAX.), IMO(RESET): 1.0 µA (MAX.)
• 38-pin plastic shrink SOP (7.62 mm (300))
ORDERING INFORMATION
Part number
µPD16878GS-BGG
Package
38-pin plastic shrink SOP (7.62 mm (300))
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S15974EJ1V0DS00 (1st edition)
Date Published February 2002 N CP(K)
©
Printed in Japan
2002