STK672-340-E Datasheet, PDF (1/13 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC Unipolar Fixed-Current Chopper (External-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Driver (Square Wave Drive) Output Current 2.2A

Ordering number : ENA1254A
STK672-340-E
Thick-Film Hybrid IC
Unipolar Fixed-Current Chopper (External-Excited PWM)
Scheme and Built-in Phase Signal Distribution IC
Two-Phase Stepping Motor Driver
(Square Wave Drive) Output Current 2.2A
Overview
The STK672-340-E is a unipolar fixed-current chopper type 2-phase stepping motor driver hybrid IC. It features power
MOSFETs in the output stage and a built-in phase signal distribution IC. The incorporation of a phase distribution IC
allows the STK672-340-E to control the speed of the motor based on the frequency of an external input clock signal.
It supports two types of excitation for motor control: 2-phase excitation and 1-2 phase excitation. It also provides a
function for switching the motor direction.
The STK672-340-E features an ENABLE pin, a function not provided in the STK672-120-E. When the ENABLE pin is
set low while the clock signal is being supplied, all MOSFET devices are forced to the off state. When ENABLE is set
high again later, the IC resumes operation, continuing with the prior excitation timing.
Applications
• Two-phase stepping motor drive in send/receive facsimile units.
• Paper feed in copiers, industrial robots, and other applications that require 2-phase stepping motor drive.
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.
62911HKPC 5-6520/72308HKIM No.A1254-1/13