Datasheet > FAN5345S30X

FAN5345S30X

更新时间： 2024-02-06 00:53:17

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		驱动器
页数	文件大小	规格书
14页	1121K
描述
Series Boost LED Driver with Single-Wire Digital Interface

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FAN5345S30X 数据手册

September 2011

FAN5345

Series Boost LED Driver with Single-Wire Digital Interface

Description

Features

The FAN5345 is an asynchronous constant-current LED

driver that drives LEDs in series to ensure equal brightness

for all the LEDs. FAN5345S20X has an output voltage of

20V and can drive up to 5 LEDs in series. FAN5345S30X

has an output voltage of 30V and drive up to 8 LEDs in

series. Optimized for small form-factor applications, the

1.2MHz fixed switching frequency allows the use of small

inductors and capacitors.

Asynchronous Boost Converter

Drives LEDs in Series:



FAN5345S20X: 20V Output

FAN5345S30X: 30V Output

2.5V to 5.5V Input Voltage Range

Single-Wire Digital Control Interface to Set LED

Brightness Levels

The FAN5345 uses a simple single-wire digital control

interface to program the brightness levels of the LEDs in 32

linear steps by applying digital pulses.



32 Linear Steps

1.2MHz Fixed Switching Frequency

Soft-Start Capability

For safety, the device features integrated over-voltage, over-

current, short-circuit detection, and thermal-shutdown

protection. In addition, input under-voltage lockout protection

is triggered if the battery voltage is too low.

Input Under-Voltage Lockout (UVLO)

Output Over-Voltage Protection (OVP)

Short-Circuit Detection

The FAN5345 is available in a 6-lead SSOT23 package.

It is “green” and RoHS compliant. (Please see

http://www.fairchildsemi.com/company/green/index.html for

Fairchild’s definition of green).

Thermal Shutdown (TSD) Protection

Small Form-Factor 6-Lead SSOT23 Package

Applications

Cellular Mobile Handsets

Mobile Internet Devices

Portable Media Players

PDA, DSC, MP3 Players

Ordering Information

Part Number

FAN5345S20X

FAN5345S30X

Output Voltage Option

Temperature Range

Package

20V

30V

6-Lead, Super-SOT™-6, JEDEC MO-193,

1.6mm Wide (MA06A)

-40 to 85°C

FAN5345 • Rev. 1.0.0

www.fairchildsemi.com

12 3 4 5 6 7...14

中文翻译

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与FAN5345S30X相关器件

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