Datasheet > A8169-025

A8169-025

更新时间： 2024-11-19 01:14:31

品牌	Logo	应用领域
创瑞 - AITSEMI		驱动
页数	文件大小	规格书
9页	435K
描述
PWM MODE 23V STEP-UP SERIES WHITE LED DRIVER

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中文翻译

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A8169-025 数据手册

A8169-025

LED BACKLIGHT DRIVER

AiT Semiconductor Inc.

www.ait-ic.com

PWM MODE 23V STEP-UP SERIES WHITE LED DRIVER

DESCRIPTION

FEATURES

The A8169-025 Series is a fixed frequency, constant

current step-up DC/DC converter ideal for driving LEDs

used in backlighting applications on cellular phones,

PDAs and digital cameras etc. Output voltage of up to 23V

can be derived, and from a 3.2V input six white LED’s can

be driven in series or alternatively, using a 2.5V input, a

network of two parallel legs with three in each may be

driven.



Input voltage range: 2.5V~6V

Output voltage range: up to 23V externally

set-up reference voltage 0.25V

Oscillation frequency: 1.0MHz

On resistance: 0.8Ω



Efficiency: 88%(When driving 3 white LEDs

series V_IN=3.6V I_LED=20mA)

Control: PWM control

Luminance of the LED’s is controlled by changing the duty

cycle of a PWM signal applied to the CE pin. In addition,

an internal MOSFET with an R_DS(ON)of 0.8Ω is used. Allow

profile and small board area solution can be achieved

using a chip coil and an ultra small ceramic output

capacitor (CL) of 0.22uF.



Stand-by Current: I_STB=1.0uA

Load capacitor: 0.22uF,ceramic

Lx limit Current:1.0A

Available in SOT-26 package

APPLICATIONS

The A8169-025 is available in SOT-26 Package.



For White LED Drivers

TYPICAL APPLICATION

Mobil phones, PHS

PDAsꢀGPSs

Digital still cameras

ORDERING INFORMATION

Package Type

SOT-26

Part Number

A8169E6R-025

A8169E6VR-025

R: Tape & Reel

Note

V: Halogen free Package

AiT provides all RoHS free products

Suffix ꢁ V ꢁ means Halogen free Package

REV2.1

- JUN 2010 RELEASED, FEB 2013 UPDATED -

- 1 -

12 3 4 5 6 7...9

中文翻译

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