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5-Phase Stepper Motor Driver Ics (5-phase stepper motor driver chips)

  • Package/Case :
  • SIP12
  • Product Categories :
  • Driver ICs
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  • Lead free / RoHS Compliant
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  • 143


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SLA5011 Product Details

Application Notes

■Determining the Output Current IO (Control Current) 

The main factors that determine the output current are current sense resistor RS, supply voltage Vb, and variable current resistor RX. (1) Normal mode To operate a motor at the maximum current level, set RX to infinity (open). From Fig. A, when the maximum current ripple is designated as IOH, its value will be, VRSH can be calculated as follows: VRSH=0.19×Vb−0.03 (center value) From equations (1) and (2), the output current IOH can be calculated as follows: The relationship between IOH and RS is shown in Fig. B. (2) Power down mode When an external resistor RX is connected, VRSH changes as shown in Fig. C even when RS is retained. Obtain a power down output current IOHPD from Fig. C and equation (1). 

■Relation between Output Current IO (Control Current) and Motor Winding Current IOM 

The SI-7502 uses the total current control system; therefore, the output current IO is different from the motor winding current. In a general pentagonal driving system, the current flows as shown in Figure D. The relation between IO and IOM is as follows: IO=4×IOM With some driving systems, the relation can also be as follows: IO=2×IOM

■Motor Connection 

The 5-phase stepper motor supports various driving systems and the motor connection varies depending on the driving system used. Use of the motor with some driving systems may be restricted by patents. Therefore, be sure to ask the motor manufacturer about the motor connection and driving system to be used. 

■Thermal design 

The driver (SLA5011/SLA6503) dissipation varies depending on a driving system used even if the output currents (control current) are the same. Therefore, measure the temperature rise of the driver under the actual operating conditions to determine the size of the heatsink. Figure E shows an SLA5011/SLA6503 derating curve. This derating curve indicates Tj=150°C; however, when using this device, allow sufficient margin when selecting a heatsink so that TC≤100°C (AI FIN temperature on the back of the SLA) is obtained.


SLA5011 Pinout
(Picture: Pinout)

SLA5011 Block Diagram
(Picture: Diagram)

Technical Parameters

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  • RoHs Status
  • Lead free / RoHS Compliant
  • Package/Case
  • SIP12

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We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that SLA5011 is the original manufacturer or agent of SANKEN?
We have a professional business development department to strictly test and verify the qualifications of SANKEN original manufacturers and agents. All SANKEN suppliers must pass the qualification review before they can publish their SLA5011 devices; we pay more attention to the channels and quality of SLA5011 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of SLA5011 chips? Including SANKEN original factory information, application, SLA5011 pictures?
You can use Jotrin's intelligent search engine, or filter by Driver ICs category, or find it through Sanken Electric Co., Ltd Information page.
Q: Are the SANKEN's SLA5011 price and stock displayed on the platform accurate?
The SANKEN's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for SLA5011, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Q: What is the process for returns or replacement of SLA5011?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SLA5011 we delivered, we will accept the replacement or return of the SLA5011 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of SLA5011.
(3)The SLA5011 is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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Sanken Electric Co., Ltd

Sanken Electric Co., Ltd carried out semiconductor research and development, and applied semiconductor technology to power products. With the development of semiconductor industry, sanken electric has gradually become a well-known power electronics enterprise in the industry and successfully establi...

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