Ordering number : EN7307B
Thick-Film Hybrid IC
STK672-070-E
Unipolar Constant-current Chopper (external excitation
PWM) Circuit with Built-in Microstepping Controller
Stepping Motor Driver (sine wave drive)
Output Current 1.5A (no heat sink*)
Overview
The STK672-070-E is a stepping motor driver hybrid IC that uses power MOSFETs in the output stage. It includes a builtin microstepping controller and is based on a unipolar constant-current PWM system. The STK672-070-E supports
application simplification and standardization by providing a built-in 4 phase distribution stepping motor controller. It
supports five excitation methods: 2 phase, 1-2 phase, W1-2 phase, 2W1-2 phase, and 4W1-2 phase excitations, and can
provide control of the basic stepping angle of the stepping motor divided into 1/16 step units. It also allows the motor speed
to be controlled with only a clock signal.
The use of this hybrid IC allows designers to implement systems that provide high motor torques, low vibration levels, low
noise, fast response, and high-efficiency drive.
This product is provided in a smaller package than SANYO's earlier STK672-040-E for easier mounting in end products.
Applications
• Facsimile stepping motor drive (send and receive)
• Paper feed and optical system stepping motor drive in copiers
• Laser printer drum drive
• Printer carriage stepping motor drive
• X-Y plotter pen drive
• Other stepping motor applications
Note*: Conditions: VCC1 = 24V, IOH = 1.5A, 2W1-2 excitation mode.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
61108HKIM/D1803SI(OT) No.7307-1/18
