Sensorless Spindle Motor Controller
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ML4411CS Product Details
The ML4411 provides complete commutation for delta or wye wound Brushless DC (BLDC) motors without the need for signals from Hall Effect Sensors. This IC senses the back EMF of the three motor windings (no neutral required) to determine the proper commutation phase angle using Phase Lock Loop techniques. This technique will commutate virtually any 3-phase BLDC motor and is insensitive to PWM noise and motor snubbing. The ML4411 is architecturally similar to the ML4410 but with improved braking and brown-out recovery circuitry.
Included in the ML4411 is the circuitry necessary for a Hard Disk Drive microcontroller driven control loop. The ML4411 controls motor current with either a constant off-time PWM or linear current control driven by the microcontroller. Braking and Power Fail are also included in the ML4411.
The timing of the start-up sequencing is determined by the micro, allowing the system to be optimized for a wide range of motors and inertial loads.
The ML4411 modulates the gates of external N-Channel power MOSFETs to regulate the motor current. The IC drives P-Channel MOSFETs directly.
The ML4411A includes a comparator on the P3 output to prevent cross-conduction.
■ Back-EMF commutation provides maximum torque for minimum"spin-up"time for spindle motors
■ Accurate,jitter-free phase locked motor speed feedback output
■ Linear or PWM motor current control
■ Easy microcontroller interface for optimized start-up sequencing and speed control
■ Power fail detect circuit with delayed braking
■ Drives external N-channel FETs and P-channel FETs
■ Back-EMF comparator detects motor rotation after power fail for fast re-lock after brownout
|Manufacturer||MICRO LINEAR||RoHs Status||Lead free/RoHS Compliant|
|Packing||Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube||Package/Case||SOP-28|
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gut verpackt , schnelle Lieferung !
Estimated Delivery Time: Jan 29 - Feb 03 days (choose Expedited at checkout).
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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 ML4411CS is the original manufacturer or agent of MICRO LINEAR?
- We have a professional business development department to strictly test and verify the qualifications of MICRO LINEAR original manufacturers and agents. All MICRO LINEAR suppliers must pass the qualification review before they can publish their ML4411CS devices; we pay more attention to the channels and quality of ML4411CS products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of ML4411CS chips? Including MICRO LINEAR original factory information, application, ML4411CS pictures?
- You can use Jotrin's intelligent search engine, or filter by Integrated Circuits (ICs) category, or find it through Micro Linear Corporation (Fairchild/ON) Information page.
- Q: Are the MICRO LINEAR's ML4411CS price and stock displayed on the platform accurate?
- The MICRO LINEAR's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ML4411CS, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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- Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
- Q: What is the process for returns or replacement of ML4411CS?
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 ML4411CS we delivered, we will accept the replacement or return of the ML4411CS 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 ML4411CS.
(3)The ML4411CS is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
- Q: How to contact us and get support, such as ML4411CS datasheet pdf, ML4411CS pin diagram?
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Micro Linear Corporation (Fairchild/ON)
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