LT3491ES8 - Brand New Linear Technology IC Chips
-
Description
The LT3491ES8 is a fixed frequency step-up DC/DC converter specifically designed to drive up to six white LEDs in series from a Li-Ion cell. It provides identical LED currents for uniform brightness, eliminating the need for ballast resistors. The device features a unique high side LED current sense that enables it to function as a “one wire current source.” Traditional LED drivers require a 2-wire connection to the LED string, but the LT3491ES8 allows one side of the LED string to be returned to ground anywhere, simplifying the connection.
Specifications and features
The LT3491ES8 offers the following specifications and features:
- Drives Up to Six White LEDs from a 3V Supply
- High Side Sense Allows “One Wire Current Source”
- Internal Schottky Diode
- One Pin Dimming and Shutdown
- 27V Open LED Protection
- 2.3MHz Switching Frequency
- ±5% Reference Accuracy
- VIN Range: 2.5V to 12V
- Requires Only 1µF Output Capacitor
- Wide 300:1 True Color PWMTM Dimming Range
- 8-Lead SC70 Package
- Low Profile 6-Lead DFN Package (2mm × 2mm × 0.75mm)
Application Scenarios
The LT3491ES8 is commonly used in the following applications:
- Cellular Phones
- PDAs, Handheld Computers
- Digital Cameras
- MP3 Players
- GPS Receivers
Comparison
Advantages- Provides identical LED currents for uniform brightness
- Simplifies LED connection with one wire current source
- Wide dimming range with true color PWMTM
Disadvantages- Limited to driving up to six white LEDs
-
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
- Datasheet: Download LT3491ES8
- Chipdatas Part: CD86-LT3491ES8
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/29 07:32 +0800
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.