Details, datasheet, quote on part number: STK672-020
PartSTK672-020
CategoryInterface and Interconnect
DescriptionUnipolar Fixed-current Chopper-type 4-phase Stepping Motor Driver With 4-phase Distribution Controller (3A Output)
CompanySanyo Semiconductor Corporation
DatasheetDownload STK672-020 datasheet
Cross ref.Similar parts: TB67S142NG
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Features, Applications

Unipolar Fixed-Current Chopper (separate excitation) Type 3.0 A Output Current Stepping Motor Driver with Built-in 4-Phase Distribution Controller

The a 4-phase stepping motor driver IC that adopts power MOSFET for its output stage and that uses a unipolar fixed-current chopper scheme. Since the STK672-020 includes a built-in 4-phase distribution controller, the stepping motor driver circuit and the control scheme can be simplified, and the stepping motor driver circuit structure can be standardized. The STK672-020 provides high torque, low vibration, and rapid response based a W1-2 phase excitation drive scheme. The motor current is voluntary set from externals. Since, compared to the earlier STK6770 Series, the STK672-020 has a smaller package size and reduced drive power dissipation (reduced by 70% over previous products), it provides a wider operating power supply voltage range.

Applications

Send/receive stepping motors in facsimile equipment Stepping motor drive for paper feed and optical systems in copier, and drum drive in laser beam printers Pen drive in X-Y plotters Industrial robots and other stepping motor application products

Schmitt input pins (for a high noise margin) Controller inputs are CMOS compatible (with built-in pull-up resistors), thus allowing direct control from I/O ports or special-purpose controller LSIs. An interval is set up during mutual switching of the AA and BB phase output signals 4-phase 2 excitation mode. <Driver Circuits> Since the is a separate excitation type circuit, it supports a wide operating power supply voltage range. to 42 V) Current detection resistors are provided within the hybrid IC. Drive power reduced by 70% when compared to the STK6770 Series (at 1 A drive). Can provide a motor drive current 2.0 A without a heat sink.

Features

The STK672-020 can easily implement stepping motor drive applications with the provision a DC power supply and a clock pulse oscillator. <4-Phase Distribution Controller> The STK672-020 supports four excitation types selected by the excitation mode setting (M1 and 4-phase 1 excitation 4-phase 1-2 excitation 4-phase 2 excitation 4-phase W1-2 excitation

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

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Specifications

Parameter Maximum supply voltage Maximum phase output current Repeat avalanche capacity Input voltage Operating substrate temperature Junction temperature Storage temperature range Symbol VCC1 max VCC2 max IOH max Ear max VIN max Tc max Tj max Tstg No signal No signal s, 1 pulse Conditions Ratings to +125 Unit V C

Parameter Operating supply voltage Input voltage Phase drive withstand voltage Phase current Symbol VCC1 VCC2 VIH VDSS IOH max Duty: 50% per phase With a signal present With a signal present Conditions Ratings 100 3.0 Unit

Parameter Output saturation voltage Output current (average) FET diode forward voltage Current when stopped On input voltage Off input voltage Input leakage current to C3 high level voltage to C3 low level voltage Chopping frequency Symbol Vst Ioave Vdf Icco VIH VIL II CVOH CVOL fc Pins and 19 Pins and 19 Pins and 19 Pins 1, 2, and 3 Pins 1, 2, and 3 R/C: = 23 Load (each phase): A 0.45 Conditions min typ max Unit A V kHz

Parameter Delay time Output signal interval Maximum clock frequency Note: Use a rated power supply. Symbol Tpd1 Tpd2 Tin fCLK Conditions For the clock path: CLK B, B For the clock path: CLK C2, C3 Only for 4-phase 2 excitation 20 min typ max Unit s kHz


 

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