EUP2595 datasheet(1/10 Pages) EUTECH

Part #	EUP2595

Description	32V Step-Up Converters for Two to Nine White LEDs

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Manufacturer	EUTECH [Eutech Microelectronics Inc]

Direct Link	http://www.eutechmicro.com

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EUP2595

DS2595 Ver1.1 Aug. 2008

1

32V Step-Up Converters

for Two to Nine White LEDs

DESCRIPTION

The EUP2595 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 EUP2595 can drive 9 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 CRTL pin.

1MHz current-mode, pulse-width modulated (PWM)

operation allows for small input and output capacitors

and a small inductor while minimizing ripple on the

input

supply/battery.

Programmable

soft-start

eliminates inrush current during startup.

The EUP2595 is available in a space-saving, 8-pin

3mm x 3mm TDFN package.

Typical Application Circuit

FEATURES

2.6V to 5.5V Input Range

32V (max) Output with Overvoltage Protection

Up to 90% Efficiency

Flexible Analog or PWM Dimming Control

Internal High Power MOSFET Switch

< 1µA shutdown Current

Fast 1MHz PWM Operation

Small, Low-Profile Inductors and Capacitors

3mm

× 3mm TDFN-8 Package

RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS

Cell Phones and Smart Phones

PDAs, Palmtops, and Wireless Handhelds

e-Books and Subnotebooks

White LED Display Backlighting

Figure 1. Typical Application Circuit

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EUP2595 Datasheet(PDF) 1 Page - Eutech Microelectronics Inc

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