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Current Mode PWM Controller 1A 500kHz 8-Pin PDIP N Tube
| Manufacturer : | Analog Devices, Inc |
|---|---|
| Package/Case : | 8-DIP |
| Product Categories : | AC DC Converters, Offline Switchers |
| Datasheet: | LT1244CN8#PBF Datasheet (PDF) |
| RoHs Status: | Pb-free Halide free |
| In-stock: | 310 |
Quantity
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LT1244CN8#PBF Product Details
The LT1241 series devices are 8-pin, fixed frequency, current mode, pulse width modulators. They are improved plug compatible versions of the industry standard UC1842 series. These devices have both improved speed and lower quiescent current. The LT1241 series is optimized for off-line and DC/DC converter applications. They contain a temperature-compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output stage ideally suited to driving power MOSFETs. Start-up current has been reduced to less than 250µA. Cross-conduction current spikes in the output stage have been eliminated, making 500kHz operation practical. Several new features have been incorporated. Leading edge blanking has been added to the current sense comparator. Trims have been added to the oscillator circuit for both frequency and sink current, and both of these parameters are tightly specified. The output stage is clamped to a maximum VOUT of 18V in the on state. The output and the reference output are actively pulled low during undervoltage lockout.
Feature
- Low Start-Up Current: <250µA
- 50ns Current Sense Delay
- Current Mode Operation: To 500kHz
- Pin Compatible with UC1842 Series
- Undervoltage Lockout with Hysteresis
- No Cross-Conduction Current
- Trimmed Bandgap Reference
- 1A Totem Pole Output
- Trimmed Oscillator Frequency and Sink Current
- Active Pull-Down on Reference and Output During Undervoltage Lockout
- High Level Output Clamp: 18V
- Current Sense Leading Edge Blanking
Applications
- Off-Line Converters
- DC/DC Converters
Technical Parameters
- Output Isolation
- Isolated
- Internal Switch(s)
- No
- Topology
- Buck
- Voltage Start Up
- 16V
- Voltage Supply (Vcc/Vdd)
- 10V ~ 25V
- Duty Cycle
- 48%
- Frequency Switching
- Up to 500kHz
- Control Features
- Frequency Control
- Operating Temperature
- 0??C ~ 100??C (TJ)
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Supplier Device Package
- 8-PDIP
- Mounting Type
- Through Hole
LT1244CN8#PBF Datasheet
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LT1244 Technical Documentation/Data sheet
LT1244CN8#PBF Related Products
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- Payment:
- Shipping:
Shipping & Payment
Shipping
- Shipping Type
- 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
- $25.00-$65.00 (0.50 KG)
- 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.
Payment
- Terms of payment
- Hand Fee
- Wire Transfer
- charge US$30.00 banking fee.
- Paypal
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- charge US$0.00 banking fee.
We provide high quality products, thoughtful service and after sale guarantee
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We have rich products, can meet your various needs.
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Minimum order quantity starts from 1pcs.
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Lowest international shipping fee starts from US$2.00.
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90 days quality guarantee for all products.
Packing
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Step1: Products
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Step2: Vacuum Packaging
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Step3: Anti-Static Bag
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Step4: Individual Packaging
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Step5: Packaging Boxes
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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.
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 LT1244CN8#PBF 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 LT1244CN8#PBF devices; we pay more attention to the channels and quality of LT1244CN8#PBF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of LT1244CN8#PBF chips? Including ADI original factory information, AC DC Converters, Offline Switchers application, LT1244CN8#PBF pictures?
- You can use Jotrin's intelligent search engine, or filter by Power Control ; PWM Controllers category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's LT1244CN8#PBF 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 LT1244CN8#PBF, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
- Q: Can I place an order offline?
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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?
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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 LT1244CN8#PBF?
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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 LT1244CN8#PBF we delivered, we will accept the replacement or return of the LT1244CN8#PBF 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 LT1244CN8#PBF.
(3)The LT1244CN8#PBF 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 LT1244CN8#PBF datasheet pdf, LT1244 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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