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Product video Product Picture
LNK305PN The LNK305PN is a LinkSwitch-TN lowest component count, energy-efficient off-line Switcher, specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700V power MOSFET, oscillator, simple on/off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or flyback converters. The fully integrated auto-restart circuit in the LNK304-306 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection cost.
  • LNK305PN
  • LNK305PN
  • LNK305PN
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Description

The LNK305PN is a LinkSwitch-TN lowest component count, energy-efficient off-line Switcher, specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700V power MOSFET, oscillator, simple on/off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or flyback converters. The fully integrated auto-restart circuit in the LNK304-306 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection cost.

Not found, similar datasheet recommended

Title

AC-DC Off-Line Switcher, Integrated Power MOSFET, 85-265 VAC input, 66 KHz, 120 mA output, DIP-8

  • ECAD Module
  • Minimum Input Voltage: 85 V ac
  • Brand: Power
  • DateCode: 07+
  • Package / Case: DIP-7
  • Maximum Input Voltage: 265 V ac
  • Mounting Type: Through Hole
  • Pin Count: 7
  • Package Type: PDIP
  • Length: 9.83mm
  • Width: 6.6mm
  • Minimum Operating Temperature: -40 °C
  • Dimensions: 9.83 x 6.6 x 3.68mm
  • Maximum Operating Temperature: +150 °C
  • Height: 3.68mm

All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

ECAD Module

Product Attributes

  • Description: The LNK305PN is a high performance offline switcher with both primary and secondary side regulation, offering an enhanced power solution for LED lighting and other similar applications. Features: Primary and secondary side regulation Under voltage lock out Low output ripple Open loop self-protection Over temperature protection Over current protection Comprehensive protection Over voltage suppression RoHS compliant Application: The LNK305PN is designed for LED lighting and other similar applications. Its Primary and secondary side regulation offers enhanced power performance. (For reference only)

LNK305PN description

The LNK305PN is a LinkSwitch-TN lowest component count, energy-efficient off-line Switcher. It is fabricated particularly as a substitute to every linear and capacitor-fed non-isolated power supplies in the under 360mA output current span at equal system cost while at the same time delivering great performance and energy efficacy. LNK305PN has an oscillator, a simple on and off control scheme, a 700V power MOSFET, a high-voltage switched current source, thermal shutdown circuitry onto a monolithic IC frequency jittering, and cycle-by-cycle current limit.

 

There is no need for a bias supply and connected circuits in flyback and buck converters since start-up and operating power are obtained from the voltage on the Drain. The completely incorporated auto-restart circuit in the IC inhibit output power through fault situations. Faulty situations maybe from short-circuit and open loop. To improve line and load regulation functioning, the LNK305PN offer a local supply to make it possible to use a unsafe graded optocoupler acting as a level shifter.

Pin configuration and their functions

SupplierFile/202005/28/f_605356dd04e94806a22df92d64fa579b.png

 

D (Drain): Drain connection and it delivers internal operating current for start-up and also for steady-state process.

BP (Bypass): An external bypass capacitor of 0.1mF is connected at this point to the 5.8 Volts generated internally

FB (Feedback): This pin regulates the switching of the IC. During normal operation, however, when a current greater than 49 microamperes is supplied, the MOSFET switching is halted.

S (Source): Source connection for IC. The Bypass and Feedback ground is at this point.

 

LNK305PN specifications and features

Completely incorporated auto-restart for short-circuit and open loop fault protection salvages component costs

66 kHz operation with accurate current limit, enables low cost off-the-shelf 1mH inductor

It has stringent tolerances and slight temperature disparity

It can endure high breakdown voltage of up to 700 Volts.

Lowest Component Count Buck Converter Solution

Frequency Jittering Dramatically Reduces EMI (~10dB)

The minimum thermal shutdown temperature is a minimum of +135°C hence have high thermal shutdown temperature

Remarkable great performance

It can sustain buck, buck-boost and fly back schemes

It consists of the following protection schemes; short circuit, heat overload, and open control loop

It has brilliant line and load control

It has a quick turn on without overshoot from its high bandwidth

The current limit functionality discards line ripple

The IC has 85 – 265 VAC universal input voltage

It consists of current limit and hysteretic thermal protection in its makeup

It is of high efficacy

It has a high power factor

Completely manufacturable in surface-mount device

It is Eco smart meaning that it is exceptionally energy efficient

normally utilizes 50/80mW in self-powered buck scheme at 115/230VAC input without load

 

Working principles of LNK305PN

LNK305PN combines a high-voltage power MOSFET switch with a power supply controller in one device. LNK305PN involves the application of a ON/OFF regulator to control the output voltage in contrast to regular pulse width modulator controllers. The LNK305PN controller comprises of an oscillator, feedback circuit, 5.8 Volts controller, bypass, under voltage circuit, over-temperature protection, current limit circuit, and leading edge blanking. The LNK305PN incorporates extra circuits for auto-restart.

 

Application of LNK305PN

LNK305PN finds applications in appliances, timers, LED drivers and industrial controls. This is achieved through a Universal Input Buck Converter that incorporates the LNK305PN: It is used to implement a circuit used as a non-isolated power supply which finds applications in appliance controls for instance rice cookers, and dishwashers. The circuit is also used in light-emitting diode drivers of night lights, and residential heating regulators.


Preview of the first 3 pages of the data sheet

  • LNK305PN's pdf picture 1
  • LNK305PN's pdf picture 2
  • LNK305PN's pdf picture 3

Document Preview

LNK306PN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : DIP, No. of Pins: : 7Pins, Power Rating: : 80mW, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature
LNK304PN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : DIP, No. of Pins: : 7Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK306GN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD, No. of Pins: : 8Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK304GN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD, No. of Pins: : 8Pins, Power Rating: : 80mW, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature
LNK302GN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD, No. of Pins: : 8Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK305GN-TL
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD DIP, No. of Pins: : 7Pins, Power Rating: : 80mW, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature
LNK304GN-TL
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD, No. of Pins: : 8Pins, Power Rating: : 80mW, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature
LNK306GN-TL
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD, No. of Pins: : 8Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK302GN-TL
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD, No. of Pins: : 8Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK305GN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SMD DIP, No. of Pins: : 7Pins, Power Rating: : 80mW, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature
LNK302PN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : DIP, No. of Pins: : 7Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK306DN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SOIC, No. of Pins: : 8Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK304DN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SOIC, No. of Pins: : 8Pins, Power Rating: : 80mW, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature
LNK302DN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SOIC, No. of Pins: : 8Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:
LNK305DN
Input Voltage AC Min: : 85V, Input Voltage AC Max: : 265V, AC / DC Converter Case Style: : SOIC, No. of Pins: : 7Pins, Power Rating: : -, Topology: : Buck, Buck-Boost, Flyback, Operating Temperature Min:

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    Jessica Ross

    LNK305PN
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    Length of registration:7 years

    The testing result for the Intergrated Circuits LNK305PN ordered from Utsource website was satisfactory. The device was tested for functionality, and all the parameters were within the specified range. The device was also tested for power consumption, and it was found to be within the specified range. The device was also tested for temperature, and it was found to be within the specified range. Ov

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    FRANCOIS

    LNK305PN
    ca Canada BOUCHERVILLE

    Length of registration:2 years

    very happy with service, great product and fast delivery, thanks

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    franck HORDE

    LNK305PN
    fr France DOMART SUR LA LUCE

    Length of registration:12 years

    article conforme a l'annonce .

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    Angel Rodriguez

    LNK305PN
    mx Mexico Yecapixtla

    Length of registration:5 years

    satisfaction

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    • LNK305PN Electronic Component
    • LNK305PN The LNK305PN is a LinkSwitch-TN lowest component count, energy-efficient off-line Switcher, specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700V power MOSFET, oscillator, simple on/off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or flyback converters. The fully integrated auto-restart circuit in the LNK304-306 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection cost.
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      LNK305PN

      LNK305PN has several brands around the world that may have alternate names for LNK305PN due to regional differences or acquisition. LNK305PN may also be known as the following names:

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        Unit Price:1.11760

        • ≥1: US $1.11760 US $1.00584
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