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IC PFC CTRLR AVERAGE CURR 8SOIC
| Manufacturer : | Analog Devices, Inc |
|---|---|
| Package/Case : | SOP8 |
| Product Categories : | PMIC - PFC (Power Factor Correction) |
| Datasheet: | LT1249CS8#TRPBF Datasheet (PDF) |
| RoHs Status: | Pb-free Halide free |
| In-stock: | 824 |
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LT1249CS8#TRPBF Product Details
FEATURES
■ Standard 8-Pin Packages
■ High Power Factor Over Wide Load Rangewith Line Current Averaging
■ International Operation Without Switches
■ Instantaneous Overvoltage Protection
■ Minimal Line Current Dead Zone
■ Typical 250µA Start-Up Supply Current
■ Rejects Line Switching Noise
■ Synchronization Capability
■ Low Quiescent Current: 9mA
■ Fast 1.5A Peak Current Gate Driver
APPLUCATIOnS
Universal Power Factor Corrected Power Supplies
Preregulators up to 1500W
DESCRIPTIOn
The 8-pin LT1249CS8#TRPBF provides active power factor correc-tion for universal ofline power systems with very few external parts.
By using fixed high frequency PWM current averaging without the need for slope compensation, the LT1249CS8#TRPBF achieves far lower line current distortion, with a smaller magnetic element than systems that use either peak current detection or zero current switching approach, in both continuous and discontinuous modes of operation.
The LT1249CS8#TRPBF uses a multiplier containing a square gain function from the voltage amplifier to reduce the AC gain at light output load and thus maintains low line current distortion and high system stability.
The LT1249CS8#TRPBF also provides filtering capability to reject line switching noise which can cause instability when fed into the multiplier.
Line current dead zone is minimized with low bias voltage at the current input to the multiplier.
The LT1249CS8#TRPBF provides many protection features including peak current limiting and overvoltage protection.
The switching frequency is internally set at 100kHz.
While the LT1249CS8#TRPBF simplifies PFC design with minimal parts count, the LT1248 provides flexibilities in switching frequency, overvoltage and current limit.
Feature
- Standard 8-Pin Packages
- High Power Factor Over Wide Load Range with Line Current Averaging
- International Operation Without Switches
- Instantaneous Overvoltage Protection
- Minimal Line Current Dead Zone
- Typical 250µA Start-Up Supply Current
- Rejects Line Switching Noise
- Synchronization Capability
- Low Quiescent Current: 9mA
- Fast 1.5A Peak Current Gate Driver
Applications
- Universal Power Factor Corrected Power Supplies
- Preregulators up to 1500W
(Picture: Pinout)
(Picture: Diagram)
Technical Parameters
- Mode
- Average Current
- Frequency Switching
- 100kHz
- Current Startup
- 250??A
- Voltage Supply
- 15.5V ~ 27V
- Operating Temperature
- 0??C ~ 100??C
- Mounting Type
- Surface Mount
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Supplier Device Package
- 8-SOIC
LT1249CS8#TRPBF Datasheet
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LT1249 Technical Documentation/Data sheet
LT1249CS8#TRPBF Related Products
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- Ship Fee
- Lead Time
- DHL
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- Fedex
- $20.00-$40.00 (0.50 KG)
- 3-7 days
- UPS
- $20.00-$45.00 (0.50 KG)
- 2-5 days
- TNT
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- 2-5 days
- EMS
- $25.00-$45.00 (0.50 KG)
- 5-14 days
- REGISTERED AIR MAIL
- $2.00-$3.00 (0.10 KG)
- 7-30 days
Processing Time：Shipping fee depend on different zone and country.
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- Terms of payment
- Hand Fee
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- charge US$0.00 banking fee.
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Guarantees
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.
FAQ:
- Q: How does Jotrin guarantee that LT1249CS8#TRPBF is the original manufacturer or agent of ADI?
- We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LT1249CS8#TRPBF devices; we pay more attention to the channels and quality of LT1249CS8#TRPBF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of LT1249CS8#TRPBF chips? Including ADI original factory information, PMIC - PFC (Power Factor Correction) application, LT1249CS8#TRPBF pictures?
- You can use Jotrin's intelligent search engine, or filter by Power Control ; Offline Controllers/PFC category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's LT1249CS8#TRPBF price and stock displayed on the platform accurate?
- The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT1249CS8#TRPBF, 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. - Q: What forms of payment can I use in Jotrin?
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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 LT1249CS8#TRPBF?
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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 LT1249CS8#TRPBF we delivered, we will accept the replacement or return of the LT1249CS8#TRPBF 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 LT1249CS8#TRPBF.
(3)The LT1249CS8#TRPBF 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 LT1249CS8#TRPBF datasheet pdf, LT1249 pin diagram?
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