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Ic led flasher/oscillator
| Manufacturer : | NS |
|---|---|
| Package/Case : | DIP-8 |
| Product Categories : | Clock/Timing - Programmable Timers and Oscillators |
| Datasheet: | LM3909N Datasheet (PDF) |
| RoHs Status: | Lead free / RoHS Compliant |
| Marking Code: | LM3909N |
| In-stock: | 1500 |
Quantity
Request for Quotation
LM3909N Product Details
The LM3909 is a monolithic oscillator specifically designed to flash Light Emitting Diodes. By using the timing capacitor for voltage boost, it delivers pulses of 2 or more volts to the LED while operating on a supply of 1.5V or less. The circuit is inherently self-starting, and requires addition of only a battery and capacitor to function as an LED flasher.
Packaged in an 8-lead plastic mini-DIP, the LM3909 will operate over the extended consumer temperature range of b25§C to a70§C. It has been optimized for low power drain and operation from weak batteries so that continuous operation life exceeds that expected from battery rating.
Application is made simple by inclusion of internal timing resistors and an internal LED current limit resistor. As shown in the first two application circuits, the timing resistors supplied are optimized for nominal flashing rates and minimum power drain at 1.5V and 3V.
Timing capacitors will generally be of the electrolytic type, and a small 3V rated part will be suitable for any LED flasher using a supply up to 6V. However, when picking flash rates, it should be remembered that some electrolytics have very broad capacitance tolerances, for example b20% to a100%.
Features
Y Operation over one year from one C size flashlight cell
Y Bright, high current LED pulse
Y Minimum external parts
Y Low cost
Y Low voltage operation, from just over 1V to 5V
Y Low current drain, averages under 0.5 mA during battery life
Y Powerful; as an oscillator directly drives an 8X speaker
Y Wide temperature range
Applications
Y Finding flashlights in the dark, or locating boat mooring floats
Y Sales and advertising gimmicks
Y Emergency locators, for instance on fire extinguishers
Y Toys and novelties
Y Electronic applications such as trigger and sawtooth generators
Y Siren for toy fire engine, (combined oscillator, speaker driver)
Y Warning indicators powered by 1.4V to 200V
(Picture: Pinout)
(Picture: Diagram)
Technical Parameters
- Manufacturer
- NS
- Packing
- Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
- RoHs Status
- Lead free / RoHS Compliant
- Package/Case
- DIP-8
LM3909N Related Products
Ratings and Reviews
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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 LM3909N is the original manufacturer or agent of NS?
- We have a professional business development department to strictly test and verify the qualifications of NS original manufacturers and agents. All NS suppliers must pass the qualification review before they can publish their LM3909N devices; we pay more attention to the channels and quality of LM3909N products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of LM3909N chips? Including NS original factory information, Clock/Timing - Programmable Timers and Oscillators application, LM3909N pictures?
- You can use Jotrin's intelligent search engine, or filter by Clock/Timing - Programmable Timers and Oscillators category, or find it through NS brand manufacturer page.
- Q: Are the NS's LM3909N price and stock displayed on the platform accurate?
- The NS's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LM3909N, 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 LM3909N?
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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 LM3909N we delivered, we will accept the replacement or return of the LM3909N 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 LM3909N.
(3)The LM3909N 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 LM3909N datasheet pdf, LM3909N pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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