LNK364PN Manufacturer, Package, Applications and Specifications
18 February 2024
Ⅳ. How to measure the quality of LNK364PN?
Ⅴ. Pins and functions of LNK364PN
Ⅷ. How does LNK364PN improve the stability and safety of the power supply?
LNK364PN is a low power and high efficiency offline switching IC, often used as a power management chip for induction cookers. In this article, we will introduce the information about LNK364PN, including product specifications, package, manufacturer and applications, etc., with pinout diagram.
LNK364PN is a low-power, high-efficiency offline switch IC chip. The LNK364PN device combines a high-voltage power MOSFET switch with a power supply controller. It adopts SO-8-pin and DIP-8-pin packaging processes. Unlike the usual PWM (Pulse Width Modulation) controller, it uses a simple on or off controller to regulate the output voltage. This controller includes an oscillator, feedback circuitry, 5.8V regulator, over-temperature protection, frequency dithering, BYPASS pin undervoltage circuit, current limit circuit and leading edge blanking circuit, and interfaces with a 700V power MOSFETs integrated together. LinkSwitch-XT also includes additional circuitry for automatic restart.
Alternatives and equivalents:
• LNK363
• LNK364PG
• LNK564PN
• TNY266
The LNK364PN is manufactured by Power Integrations (PI). PI Corporation is the industry's leading supplier of high-voltage analog integrated circuits for energy-efficient power conversion. The company was founded in 1988 and is headquartered in San Jose, California, USA. Thanks to Power Integrations' technological innovations in high-voltage integrated circuits, it is possible to create small, compact and high-efficiency power supplies. These power supplies are widely used in a variety of electronic products, including computers, mobile phone chargers, DVD players, set-top boxes, LCD TVs, home appliances, LED lighting, telecommunications network equipment and many other fields.
LNK364PN has seven pins. To ensure pin-to-pin stability and electrical connection reliability, it is packaged in DIP-8. This layout not only makes circuit connections simpler, but also helps reduce the space occupied by the circuit board, thereby achieving miniaturization and compactness of electronic equipment.
Notes:
1. Package dimensions conform to JEDEC specification MS-001-AB (lssue B 7/85) for standard dual-in-line (DIP) package with .300 inch row spacing.
2. Controlling dimensions are inches. Millimeter sizes are shown in parentheses.
3. Dimensions shown do not include mold flash or other protrusions. Mold flash or protrusions shall not exceed.006 (.15) on any side.
4. Pin locations start with Pin 1, and continue counter-clock-wise to Pin 8 when viewed from the top. The notch and/or dimple are aids in locating Pin 1. Pin 6 is omitted.
5. Minimum metal to metal spacing at the package body for the omitted lead location is .137 inch (3.48 mm).
6. Lead width measured at package body.
7. Lead spacing measured with the leads constrained to be perpendicular to plane T.
We use the red test lead (positive electrode) of the analog multimeter to touch the negative electrode of the high-voltage diode, and at the same time, use the black test lead (negative electrode) to touch the positive electrode of the high-voltage diode. In the R×10K gear, the measured resistance should be approximately 100KΩ. Then, we exchange the positions of the two test leads, and the resistance measured at this time should be infinite. If the above conditions are met, it means that the high-voltage diode is working properly. In addition, if the resistance measured by a multimeter in both the forward and reverse directions is infinite, this may indicate a problem with the high-voltage diode.
1. Source (S) Pin: This pin is the source connection of the power MOSFET. This is also the ground reference for the BYPASS and FEEDBACK pins.
2. Bypass (BP) Pin: It is the connection point for the 0.1μF external bypass capacitor for the internally generated 5.8V power supply. If an external bias winding is used, the current flowing into the BP pin must not exceed 1 mA.
3. Feedback (FB) Pin: During normal operation, the switching of the power MOSFET is controlled by this pin. The MOSFET switch is disabled when greater than 49µA of current is delivered to this pin.
4. Drain(D) Pin: This pin is the drain connection of the power MOSFET. It provides the current for start-up and steady-state operation of internal operations.
Some common application areas of LNK364PN are listed below.
• LED driver: LED lighting application is an important area for LNK364PN. It can be used to design LED drivers for various scenarios such as indoor lighting, landscape lighting, automotive lighting, etc. The LNK364PN is able to provide stable output current to ensure stable brightness and long life of LEDs.
• Household appliances: LNK364PN is often used to design power modules for various household appliances, such as televisions, refrigerators, microwave ovens, washing machines, etc. It can provide high efficiency and stable output current to ensure stable brightness and long life of LEDs. It is able to provide high efficiency and stable power supply with overload and over-temperature protection to ensure the safe operation of household appliances.
• USB charger: Due to its high efficiency and compact package form, LNK364PN is commonly used to design USB chargers. These chargers can be used to charge a variety of portable devices such as Bluetooth headsets, smartphones, tablets, etc. The LNK364PN is able to provide highly efficient charging while ensuring battery safety and longevity during the charging process.
• Communication devices: In communication devices, the LNK364PN can be used to design power modules such as wireless routers, modems, network switches, etc. The LNK364PN can provide high-efficiency power supply while ensuring battery safety and life during charging. It can provide high-efficiency power supply to ensure the stable operation of communication equipment. In wireless routers, the LNK364PN chip provides stable power support for the device, ensuring continuous transmission and reception of wireless signals. In modems, the chip provides reliable power supply for data transmission, ensuring the stability and accuracy of data transmission. In network switches, the LNK364PN chip is responsible for providing stable power support for the connection of multiple devices, ensuring smooth network communication.
• Consumer electronics: LNK364PN is also suitable for the power supply design of consumer electronics, such as wireless routers, electronic sockets, audio equipment, etc., to meet the high efficiency and stability requirements of small power electronic devices. For wireless routers, LNK364PN can provide continuous and stable power support to ensure continuous transmission and reception of wireless signals, bringing users a smooth network experience. In electronic sockets, the chip is responsible for providing safe and stable power supply for various electronic devices, effectively avoiding power fluctuations that may cause damage to the devices. In addition, in audio equipment, it can provide pure and stable power supply for audio equipment to ensure the accurate transmission of audio signals, bringing users a high-quality audio experience.
LNK364PN significantly improves the stability and safety of the power supply through the following centralized methods. First of all, it has an under-voltage protection function. When the input voltage is lower than a certain threshold, it will automatically turn off the power output, thereby preventing the device from working abnormally or being damaged due to under-voltage. Secondly, LNK364PN has an over-current protection mechanism. Once the output current exceeds the preset safety limit, the power output will also be automatically cut off, effectively avoiding safety hazards such as equipment damage and circuit short circuits. In addition, LNK364PN adopts advanced offline switch IC design, which not only significantly improves power conversion efficiency, but also reduces energy consumption. This design not only extends the battery life of the device, but also reduces energy loss in the circuit, further enhancing the stability and reliability of the power supply. At the same time, LNK364PN also has a built-in thermal shutdown circuit. When the chip temperature is too high, it will automatically shut down the power output to prevent equipment damage or fire accidents that may be caused by overheating. Finally, LNK364PN also has an automatic restart function. When the power fails, the chip quickly enters shutdown mode and cuts off all drive signals. Subsequently, its internal timer starts counting, and once the timer expires, the chip will attempt to automatically restart. This fast-response automatic restart mechanism helps promptly handle power failures to avoid equipment damage or other safety hazards.
Frequently Asked Questions
1. What is the replacement and equivalent of LNK364PN?
You can replace the LNK364PN with LNK363, LNK364PG, LNK564PN or TNY266.
2. What is the primary function of the LNK364PN?
The primary function of the LNK364PN is to convert AC input voltage into a stable DC output voltage efficiently, making it suitable for various power supply designs.
3. What are the benefits of using the LNK364PN in power supply designs?
The benefits of using the LNK364PN include simplified circuit design due to its integrated features, high efficiency resulting in reduced power consumption, and robust protection mechanisms ensuring reliability.
4. What is the package type of the LNK364PN?
The LNK364PN typically comes in a standard 8-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package, offering ease of assembly and compatibility with standard PCB layouts.
