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IC LED DRIVER CTRLR DIM 52QFN
| Hersteller : | Analog Devices, Inc |
|---|---|
| Verpackung/Behälter : | QFN-52 |
| Produkt der Kategorien : | LED Drivers |
| Datasheet: | LT3797IUKG#PBF Datasheet (PDF) |
| RoHs Status: | Lead free/RoHS Compliant |
| Lagerbestand: | 1314 |
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LT3797IUKG#PBF Beschreibung
The LT3797is a triple output DC/DC controller designed to drive three strings of LEDs. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. The LT3797IUKG#PBF includes an integrated DC/DC converter to produce a regulated 7.5V supply for the N-channel MOSFET gate drivers of the three channels. This high efficiency converter enables the part to operate from a wide input voltage range from 2.5V to 40V.
The LT3797IUKG#PBF is designed so that each converter can use the most suitable configuration to drive its LED load, whether step-up, step-down or a combination. Two key features enable this flexibility: first the LT3797IUKG#PBF can sense output current at the high side of the LED string; and second, the voltage feedback pin, FBH, is referred to the ISP current sensing input. The CTRL inputs provide output current analog dimming capability. The TG drivers level shift the PWM signals to drive the gates of external LED-disconnect P-channel MOSFETs, allowing high PWM dimming range, and providing LED overcurrent protection and short-circuit protected boost capability.
Feature
- Three Independent LED Driver Channels
- Wide Input Voltage Range: 2.5V to 40V
- VIN Transient Ride-Through Up to 60V
- Rail-to-Rail LED Current Sense: 0V to 100V
- 3000:1 PWM Dimming
- TG Drivers for PMOS LED Disconnection
- Operates in Boost, Buck Mode, Buck-Boost Mode, SEPIC or Flyback Topology
- Open-LED Protection
- Short-Circuit Protected Boost Capable
- Fault Flags for Independent Channels
- Programmable VIN Undervoltage and Overvoltage Lockout
- Adjustable Switching Frequency: 100kHz to 1MHz
- Synchronizeable to an External Clock
- CTRL Pins Provide Analog Dimming
- Programmable Soft-Start
- Low Profile 52-Lead 7mm x 8mm QFN and 48-Lead Exposed Pad LQFP
Anwendungen
- Automotive and Industrial Lighting
- RGB Lighting
- Billboards and Large Displays
Technische Parameter
- Type
- DC DC Controller
- Topology
- Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)
- No
- Number of Outputs
- 3
- Voltage Supply (Min)
- 2.5V
- Voltage Supply (Max)
- 40V
- Frequency
- 100kHz ~ 1MHz
- Dimming
- Analog, PWM
- Applications
- Automotive, Lighting
- Operating Temperature
- -40??C ~ 125??C (TA)
- Mounting Type
- Surface Mount
- Package / Case
- 52-WFQFN Exposed Pad
- Supplier Device Package
- 52-QFN (7x8)
LT3797IUKG#PBF Datasheet
-
LT3797 Technical Documentation/Data sheet
LT3797IUKG#PBF Verwandte besondere
Ratings and Reviews (1)
- 5 / 5
- 5 Stars 100%
- 4 Stars 0%
- 3 Stars 0%
- 2 Stars 0%
- 1 Stars 0%
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**ohan***2019-08-18
Superschneller Versand, prima Ware, einfach klasse!
- Zahlung:
- Fracht:
Fracht & Zahlung
Fracht
- Liefer-Type
- Schiff 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.
Zahlung
- Zahlungsbedingungen
- 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.
Wir bieten qualitativ hochwertige Produkte, aufmerksamen Service und nach dem Verkauf Garantie
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Wir haben reiche Produkte, können Ihre verschiedenen Bedürfnisse erfüllen.
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Mindestbestellmenge beginnt 1pcs.
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Niedrigsten Transportgebühr beginnt bei US $ 2,00.
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90 Tage Qualitätsgarantie für alle Produkte.
Verpackung
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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.
Garantien
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 LT3797IUKG#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 LT3797IUKG#PBF devices; we pay more attention to the channels and quality of LT3797IUKG#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 LT3797IUKG#PBF chips? Including ADI original factory information, LED Drivers application, LT3797IUKG#PBF pictures?
- You can use Jotrin's intelligent search engine, or filter by LED Driver IC ; Step-Down (Buck) LED Drivers category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's LT3797IUKG#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 LT3797IUKG#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 LT3797IUKG#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 LT3797IUKG#PBF we delivered, we will accept the replacement or return of the LT3797IUKG#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 LT3797IUKG#PBF.
(3)The LT3797IUKG#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 LT3797IUKG#PBF datasheet pdf, LT3797 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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