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  • LNK6777E

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Primary & Secondary Side PWM Controllers Off-Line Switcher IC PSR LinkSwitch HP

  • Package/Case :
  • eSIP-7C
  • Product Categories :
  • Primary & Secondary Side PWM Controllers
  • RoHs Status:
  • Rohs
  • In-stock:
  • 2288


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LNK6777E Product Details


A LinkSwitch™-HP device monolithically integrates a controller and high-voltage power MOSFET into one package. It has a newly developed analogue control scheme, which enables continuous conduction mode (CCM), primary side regulated (PSR) power supplies up to 90 W without the efficiency limitation of DCM or audible noise. It uses an enhanced peak current mode PWM control scheme with multi-mode operation. The multi-mode control engine uses the error amplifier output signal voltage at the COMPENSATION pin to set the operating peak current and switching frequency to maintain the output voltage in regulation as shown in Figure 5. For COMPENSATION pin voltages lower than VC(MCM) (typ. 1.25 V) the device enters multi-cycle modulation (MCM) with a fixed peak current of 25% of the programmed current limit. Several innovative improvements have been added to the peak current mode control to allow primary side regulated CCM operation with no instability. The device meets less than 30 mW input power with no-load at high-line (LNK67xx families). 


• Auto-restart limits power delivery to 3% during overload faults

• Output short-circuit protection (SCP)

• Output overload/over-current protection (OPP, OCP)

• Optional extended shutdown delay time

• Output overvoltage protection (OVP), auto-restart or latching

• Line brown-in/out protection (line UV)

• Line overvoltage (OV) shutdown extends line surge withstand

• Accurate thermal shutdown (OTP), hysteretic or latching


  • External current limit selection
  • Primary-side sensed output overvoltage protection
  • Lost regulation protection during output overload or short-circuit
  • Internal current limit over line compensation for constant overload power over line
  • High-voltage bus overvoltage sense for extended line surge withstand
  • High-voltage bus undervoltage sense for brown-in/out protection
  • Accurate over temperature protection
  • Output OVP/OCP/OTP shutdown type selection
  • Cycle-by-cycle current limit control
  • Regulator/shunt voltage clamp
  • Hysteretic thermal shutdown
  • Safe operating area protection
  • Programmable shutdown delay
  • Current limit setting
  • Multi-mode control maximizes efficiency over full load range
  • Eliminates optocoupler and all secondary control circuitry
  • Accurate programmable current limit - Compensation over line limits overload power
  • Frequency jittering reduces EMI filter
  • Output overvoltage protection, auto-restart or latching
  • Line brown-in/out protection

LNK6777E Pin Diagram
(Picture:Pinout / Diagram)

Technical Parameters

  • Switching Frequency
  • 120 kHz to 136 kHz
  • Package / Case
  • eSIP-7C
  • Packaging
  • Tube
  • Mounting Style
  • Through Hole
  • Output Current
  • 15 uA
  • Output Power
  • 85 W
  • Supply Current
  • 1.7 mA
  • Type
  • Off Line Switcher

LNK6777E Related Products

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  • **ELAR***

    Tutto perfetto! . Grazie. All right . perfect. Thank you . AAAAA+++++

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Estimated Delivery Time: Jun 01 - Jun 06 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    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

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

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.

Jotrin ESD packing


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 LNK6777E is the original manufacturer or agent of POWER?
We have a professional business development department to strictly test and verify the qualifications of POWER original manufacturers and agents. All POWER suppliers must pass the qualification review before they can publish their LNK6777E devices; we pay more attention to the channels and quality of LNK6777E products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LNK6777E chips? Including POWER original factory information, Primary & Secondary Side PWM Controllers application, LNK6777E pictures?
You can use Jotrin's intelligent search engine, or filter by Primary & Secondary Side PWM Controllers category, or find it through Power Integrations, Inc Information page.
Q: Are the POWER's LNK6777E price and stock displayed on the platform accurate?
The POWER's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LNK6777E, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
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.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
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 LNK6777E?
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 LNK6777E we delivered, we will accept the replacement or return of the LNK6777E 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 LNK6777E.
(3)The LNK6777E 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 LNK6777E datasheet pdf, LNK6777E pin diagram?
Need any After-Sales service, please feel free contact us:

Power Integrations, Inc

Power Integrations, Inc. is a provider of high performance electronic components for high voltage power conversion systems and is headquartered in Silicon Valley, USA. ICs and diodes help design a compact, energy-efficient AC-DC power supply for a wide range of electronic products, including televis...
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