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Description
The EUP2571VCIR1 is a constant current step-up converter specially designed for driving white LEDs. The step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness. The EUP2571VCIR1 can drive 6 LEDs in series. The brightness of the LEDs can be adjusted through a voltage level on the CTRL pin or by applying a PWM signal to the CTRL pin.
Specifications and features
● 2.6V to 5.5V Input Range
● 26V (max) Output with Overvoltage Protection
● Up to 87% Efficiency
● Flexible Analog or PWM Dimming Control
● Internal High Power 30V MOSFET Switch
● < 1µA shutdown Current
● Fast 1MHz PWM Operation
● Small, Low-Profile Inductors and Capacitors
● 3mm× 3mm DFN-8 Package
● RoHS Compliant and 100% Lead (Pb)-FreeApplication Scenarios
● Cell Phones and Smart Phones
● PDAs, Palmtops, and Wireless Handhelds
● e-Books and Subnotebooks
● White LED Display BacklightingComparison
The EUP2571VCIR1 has the advantage of driving 6 LEDs in series for uniform brightness. It also offers a wide input range of 2.6V to 5.5V and has a maximum output of 26V with overvoltage protection. The converter operates at up to 87% efficiency and has flexible analog or PWM dimming control. It features a small, low-profile package and is RoHS compliant and 100% lead-free. However, it has a shutdown current of less than 1µA and operates at a fast 1MHz PWM frequency.
AdvantagesThe EUP2571VCIR1 has the following advantages:
- Uniform brightness due to series connection of LEDs
- Wide input range of 2.6V to 5.5V
- Maximum output of 26V with overvoltage protection
- High efficiency of up to 87%
- Flexible dimming control options
- Small, low-profile design
- RoHS compliant and 100% lead-free
DisadvantagesThe EUP2571VCIR1 has the following disadvantage:
- Low shutdown current of less than 1µA
- Fast operation at 1MHz PWM frequency
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
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Shipping option:
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Popular parts of the same kind
- Datasheet: Download EUP2571VCIR1
- Chipdatas Part: CD94-EUP2571VCIR1
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/13 16:44 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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