THM3561 Datasheet, PDF (1/21 Pages) THine Electronics, Inc. – Stepping Motor Driver with LVDS Interface

THM3561_Rev1.01_E
THM3561
Stepping Motor Driver with LVDS Interface
Overview
THM3561 is a motor driver for driving a unipolar
stepping motor. It contains four built-in high-voltage and low
on-resistance transistors and these are controlled by writing a
setting register by a serial interface.
LVDS transmission is possible in the serial interface,
therefore; it achieves high noise resistance, high speeds and
long-distance transmission. To return a sensor signal for
position detection, THM3561 contains a built-in serial
interface. It is possible to significantly reduce the number of
parts.
The arrangement of the motor driver and the high
flexibility of the connection are possible as the serial
interface is used to register reading, which corresponds to the
cascade connection and multi-drop.
As it is a simple communication protocol, it reduces the
load on the CPU and can be easily controlled.
This product will operate at 5V using a built-in regulator,
however a 3.3V system microcontroller can be directly
connected by supplying 3.3V to the VIO pin.
It is possible to have a built-in clamp diode to the driver
output, and to reduce the number of parts. The design of the
damper circuit can be easily performed.
Application
・ Amusement device
・ Multi-functional printer (OA device)
・ Industrial equipment, monitoring camera, etc.
Features
<Motor driver unit>
・2-phase stepping motor driver
・Unipolar constant voltage drive
・Maximum output current 1.5A/phase (Tj=25˚C)
・Maximum output voltage 48V ( recommended 45V)
・Phase input mode and clock input mode can be selected by
a setting pin
<Serial interface>
・Maximum serial clock frequency 10Mbps
・Single-end transmission and LVDS transmission can be
selected
・Bridge function from 4-wire CMOS level to LVDS
・Repeater function of LVDS with waveform and timing
correction
・Maximum device address : 30
・Writing of all device batch registers is also possible
・Built-in 4-bit parallel-serial conversion function for sensor
connection.
<Other>
・Various built- protection functions (UVLO, OCP and TSD)
・Fault detect output (OCP and TSD)
・Input voltage range 8V to 45V,
absolute maximum rating: 48V
・Built-in regulator for internal power supply generation 5V
・package: QFN48 (7mm x 7mm)
・RoHS directive compliant
Use Case Diagram
Controller
Motor
Driver
THM3561
Motor
Driver
THM3561
Motor
Driver
THM3561
Serial signal for motor control
(Forward Serial)
Serial signal for seNsor signal transfer
(Reverse Serial)
Motor
Driver
THM3561
Figure 1. Use Case Diagram
Copyright(C)2015 THine Electronics, Inc.
1/21
Motor
Driver
THM3561
THine Electronics, Inc.
Security E