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YB1506

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
裕邦科技 - YOBON		驱动器转换器 DC-DC转换器
页数	文件大小	规格书
10页	563K
描述
Step-up DC-DC Converter , White LED Driver

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YB1506 数据手册

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YB1506

Step-up DC-DC Converter , White LED Driver

Description

Features

The YB1506 is a step-up(Boost) DC-DC

converter; operate as current source to drive

up to 5 white LEDs in series. Series

connecting of the LEDs provides identical

LED currents resulting in uniform brightness

and eliminating the need for ballast

resistors. The light intensity of these LEDs is

proportional to the current passing through

them. The low off-time permits the use of

tiny, low profile inductors and capacitors to

minimize footprint and cost in space

consideration applications for cellular phone

backlighting or other hand held equipment.

Internal switch

Adjustable output voltage up to 22V

2.2V to 6.5V input range

0.1uA shutdown current

Small 5-Lead SOT-23 package

High efficiency

Drives 5 white LEDs

Over voltage protection

Applications

The YB1506 can drive up to 5 white LEDs

from a single Li-Ion battery DC 2.2V to 6.5V;

can be turn on by putting more than 1.2 volt

at pin 4 (SHDN). To control LED brightness,

the LED current can be pulsed by applying a

PWM (pulse width modulated) signal with a

frequency range of 100Hz to 50KHz to the

SHDN pin.YB1506 has integrated Over

Voltage Protection that prevents damage to the

device in case of a high impedance output due

to faulty LED.

LCD Display Module

White LED Backlighting

PDAs

Digital Cameras

Portable Application

Cellular Phone

Electronic books

Typical Application Circuit (Li-Ion battery 2.5 volt to 6.5 volt is recommended.)

Figure 1：Typical Application Circuit

YB1506 MRev1.1

WWW.YOBON.COM.TW

1

12 3 4 5 6 7...10

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