Datasheet > L5101

L5101

更新时间： 2024-11-09 03:49:47

品牌	Logo	应用领域
友顺 - UTC		转换器升压转换器
页数	文件大小	规格书
9页	135K
描述
WHITE LED STEP-UP CONVERTER

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数据手册

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L5101 数据手册

UNISONIC TECHNOLOGIES CO., LTD

L5101

LINEAR INTEGRATED CIRCUIT

WHITE LED STEP-UP

CONVERTER

ꢀ

DESCRIPTION

The UTC L5101 is a fixed frequency step-up PWM DC/DC

converter and designed for white LEDS driving with a constant

current to provide backlight in handheld devices. The device

switches at a high frequency 1.2MHz by an internal N-channel

MOSFET switch to be capable of minimum external components

using.

The UTC L5101 can drive up to 5 LEDs in series by a Li-Ion cell.

Series connection of LEDS provides identical LED currents

resulting in uniform brightness without ballast resistors. The low

95mV feedback voltage minimizes power loss in the current setting

resistor can have better efficiency.

SOT-26

*Pb-free plating product number: L5101L

ꢀ

FEATURES

* Built-In Open Circuit Protection

* Built-In Over Voltage Protection

* High Efficiency(Up to 84% at V_IN=4.2V, 3 LEDs, I_LED=20mA)

* 1.2MHz fixed switching frequency

* Low supply current: 70µA

* Matches LED current

* Requires tiny inductor and capacitors

ꢀ ORDERING INFORMATION

Order Number

Package

SOT-26

Packing

Normal

Lead Free Plating

L5101L-AG6-R

L5101-AG6-R

Tape Reel

www.unisonic.com.tw

1 of 9

QW-R103-026,A

12 3 4 5 6 7...9

中文翻译

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