What is the Additional Feature ?

Name: FSDH321
Brand: ON Semiconductor
SKU: FSDH321
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

Cart ( )

lmages are for reference only See Product Specifications

ON Semiconductor FSDH321

Part No.:: FSDH321

Manufacturer:: ON Semiconductor

Package:: 8-DIP (0.300, 7.62mm)

Datasheet:: FSDH321.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

In Stock:: 2980

Quantity:: Add To Cart

For more detailed including pricing and shipping

: Quick response, quick quotation

: Flash shipment, no worries after sales

: Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Purchase and inquiry

FSDH321 Specifications

Packaging:
Tube
Series:
FPS™
ProductStatus:
Discontinued at Mosen
OutputIsolation:
Isolated
InternalSwitch(s):
Yes
Voltage-Breakdown:
650V
Topology:
Flyback
Voltage-StartUp:
12 V
Voltage-Supply(Vcc/Vdd):
8V ~ 20V
DutyCycle:
67%
Frequency-Switching:
100kHz
Power(Watts):
17 W
FaultProtection:
Current Limiting, Over Load, Over Temperature, Over Voltage
ControlFeatures:
-
OperatingTemperature:
-25°C ~ 85°C (TA)

FSDH321 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including FSDH321 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for FSDH321 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

Purchase in icwhale.com

There is no doubt that you may place an order without registering to icwhale.com.

We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

Means of Payment in icwhale.com

For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

RFQ (Request for Quotations) in icwhale.com

It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

Our sales will reply to your request by email within 24 hours.

Warm reminder

1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping & Handling

Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

Order Tracking for International Orders

Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.

FSDH321 information

Views：

FSDH321 Typical application Circuitry

FSDH321

The FSDH321 is part of the FSDH series, which is known for its integrated PWM (Pulse Width Modulation) controllers designed for high-efficiency power supplies. These devices are specifically tailored for switch-mode power supplies (SMPS), featuring built-in high-voltage MOSFETs, which make them suitable for a broad range of applications including battery chargers, adapters, and standby power systems. The FSDH321 is optimized for low power consumption and improved energy efficiency, making it an excellent choice for designs that require compact size and minimal power loss.

1. Integrated PWM Controller Design: At its core, the FSDH321 integrates a PWM controller with a high-voltage power MOSFET in a single package. This integration facilitates the design of efficient and compact switch-mode power supplies by reducing the number of external components required, which is crucial for achieving high energy efficiency and reliability in power conversion applications.

2. Pin Configuration for Power Supply Integration: The FSDH321 is meticulously designed with a series of pins that serve essential functions within the SMPS circuit. These typically include a Drain (D) pin connected to the high-voltage side, a Source (S) pin that serves as the reference ground and output for the PWM controller, and a Feedback (FB) pin for closed-loop control of the output voltage. The device may also feature additional pins for functions such as Vcc supply and startup.

3. Power Supply and Feedback Loop Setup: Achieving optimal performance from the FSDH321 involves providing a stable Vcc supply to power the internal PWM controller, ensuring the device operates within its specified voltage range. The Feedback pin is crucial for regulating the output voltage by providing a portion of the output voltage back to the controller, enabling precise control over the power supply's output characteristics.

4. High-Voltage MOSFET Connection and SMPS Topology: The integrated high-voltage MOSFET's Drain pin must be properly connected to the primary side of the SMPS transformer, facilitating the switching operation essential for voltage conversion. The choice of SMPS topology (e.g., flyback, forward converter) will dictate the specific connection method and additional external components like the transformer, diodes, and capacitors needed for energy storage and filtering.

5. Thermal Management for Enhanced Reliability: Given the power conversion operation of the FSDH321, effective thermal management is critical to ensure device stability and longevity. Implementing adequate heat sinking for the MOSFET, along with careful PCB layout to enhance thermal dissipation, can help maintain the device within its operational temperature range, preventing overheating and ensuring reliable performance.

6. Circuit Protection and Safety Features: The FSDH321 series often incorporates built-in protection features such as overvoltage protection, overcurrent protection, and thermal shutdown. Integrating these safety mechanisms within the power supply design is essential for protecting the circuit from abnormal conditions, enhancing the overall safety and reliability of the power supply.

In summary, the FSDH321 is an integrated PWM controller with a high-voltage MOSFET from the FSDH series, designed for efficient and compact switch-mode power supplies. Implementing this device involves understanding its pin functions, providing a stable power supply, configuring the feedback loop for voltage regulation, connecting the high-voltage MOSFET for power conversion, ensuring effective thermal management, and incorporating circuit protection features. By adhering to these guidelines, engineers can leverage the FSDH321's capabilities to develop high-efficiency power supplies for a wide range of applications.

FSDH321 FAQ

1. How to order FSDH321 on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that FSDH321 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the FSDH321. All suppliers must pass our qualification reviews before they can publish their products including FSDH321 on icwhale.com; we pay more attention to the channels and quality of FSDH321 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the FSDH321 price and inventory displayed accurate?

The price and inventory of FSDH321 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of FSDH321?

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 FSDH321 we delivered, we will accept the replacement or return of the FSDH321 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 FSDH321.

(3)The PartNo 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