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Manufacturer / Brand: AD
Details: Single Cell 350mA LED Driver
Series: LTC3490
Quantity Available: Over 65330 pieces

Datasheet for LTC3490:

LTC3490 datasheet
Price for LTC3490
Product Parameters
  • Manufacturer Part Number : LTC3490
  • Manufacturer : AD
  • Description : Single Cell 350mA LED Driver
  • Series : LTC3490
  • Reference Price : USD 1.68
  • Our Price : We have a better price, contact us by email
  • Product Type : LED Driver IC
  • Function : Step-Up (Boost) LED Drivers
  • Current Suggest : Production
  • Status : Production
  • RoHS Status: -
  • Voltage: -
  • Feature: -
  • Package Case: -
  • Temperature Range: -
  • Packing: Reel/Tray/Tube
  • Standard Packing Quantity: -
  • Country of Origin: -
  • Other Part Number : LTC3490
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Related IC Components
Features and Benefits of LTC3490
Product Detailed Description for LTC3490

The LTC3490 provides a constant current drive for 1W LED applications. It is a high efficiency boost converter that operates from 1 or 2 NiMH or alkaline cells and generates 350mA of constant current with up to 4V of compliance. It contains a 100mΩ NFET switch and a 130mΩ PFET synchronous rectifier. The fixed switching frequency is internally set to 1.3MHz.

The LTC3490 limits the output voltage to 4.7V if the output load is disconnected. It also features an analog dimming capability that reduces the drive current proportional to the CTRL/SHDN pin voltage. A low-battery logic output signals when the battery has dropped below 1V/cell. An undervoltage lockout circuit shuts down the LTC3490 when the battery voltage drops below 0.85V/cell. The feedback loop is internally compensated to minimize component count.

Applications

  • Portable Lighting
  • Rechargeable Flashlights
Lifecycle information of LTC3490

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

LTC3490 More photos
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