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  • L6565N

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QUASI-RESONANT SMPS CONTROLLER,Switching Converters, Regulators & Controllers Current-Mode Pri Cnt

Manufacturer : STMicroelectronics, Inc
Package/Case : PDIP-8
Product Categories : Switching Converters, Regulators & Controllers
Datasheet: L6565N Datasheet (PDF)
RoHs Status: Lead free/RoHS Compliant
In-stock: 3067


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L6565N Product Details

The L6565N is a current-mode primary SMPS Controller specifically designed to build offline Quasi-resonant ZVS (zero voltage switching at switch turn-on) flyback converters. Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET's turn-on Converter's power capability variations with the mains voltage are compensated by line voltage feedforward. At light load the device features a special function that automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. In addition to very low start-up and quiescent currents, this feature helps keep low the consumption from the mains at light load and be Blue Angel and Energy Star compliant. The IC includes also a disable function, an on-chip filter on current sense, an error amplifier with a precise reference voltage for primary regulation and an effective two-level overcurrent protection.



  • Frequency foldback for optimum standby efficiency
  • Quasi-resonant (QR) zero-voltage switching (ZVS) topology
  • Line feed forward to deliver constant power vs. mains change
  • Pulse-by-pulse and hiccup-mode OCP
  • Blue angel, energy star, energy 2000 compliant

Technical Parameters

  • Switching Frequency
  • 70 kHz
  • Rise Time
  • 40 ns
  • Fall Time
  • 40 ns
  • Operating Supply Voltage
  • 10.3 V to 18 V
  • Operating Supply Current
  • 3.5 mA
  • Number of Outputs
  • 1
  • Maximum Operating Temperature
  • + 150 C
  • Mounting Style
  • Through Hole
  • Package / Case
  • PDIP-8
  • Minimum Operating Temperature
  • - 40 C
  • Packaging
  • Tube
  • Factory Pack Quantity
  • 50
  • UVLO Start Threshold
  • 13.5 V
  • UVLO Stop Threshold
  • 9.5 V

L6565N Datasheet

L6565N Related Products

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Estimated Delivery Time: Dec 12 - Dec 17 days (choose Expedited at checkout).

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    Minimum order quantity starts from 1pcs.

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    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

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    Step3: Anti-Static Bag

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

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.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

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 L6565N is the original manufacturer or agent of ST?
We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their L6565N devices; we pay more attention to the channels and quality of L6565N products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of L6565N chips? Including ST original factory information, Switching Converters, Regulators & Controllers application, L6565N pictures?
You can use Jotrin's intelligent search engine, or filter by Power Management ; AC-DC Converters ; PWM Controllers category, or find it through STMicroelectronics, Inc Information page.
Q: Are the ST's L6565N price and stock displayed on the platform accurate?
The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for L6565N, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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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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Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
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 L6565N?
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 L6565N we delivered, we will accept the replacement or return of the L6565N 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 L6565N.
(3)The L6565N 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 L6565N datasheet pdf, L6565 pin diagram?
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STMicroelectronics, Inc

ST Microelectronics is a global independent semiconductor company and a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications, and that designs, develops, manufactures and markets a broad spectrum of products....
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