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STCF02PMR

更新时间： 2024-02-08 10:43:19

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		驱动器驱动程序和接口接口集成电路
页数	文件大小	规格书
4页	227K
描述
High Power White Led Driver

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技术参数
数据手册

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STCF02PMR 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.68
Base Number Matches：	1

STCF02PMR 数据手册

STCF02

High Power White Led Driver

Data Brief

Features

I Buck-boost DC/DC Converter

I Drives One Power White Led:

Up To 600mA Between 2.7 To 5.5V

I Led Temperature Protection

I Output Current Control

QFN20

I 1.8 MHz Typ Fixed Frequency PWM

I Synchronous Rectification

Description

I High Efficiency Across The Total Input Voltage

The STCF02 is a high efficiency power supply

solution to drive a single flash LED in camera

phone, PDAs and other hand-held devices. It is a

buck-boost converter to guarantee a proper LED

current control over the battery voltage

(particularly in the case, that the output voltage is

lower than the input voltage); the output current

control ensure a good current regulation over the

forward voltage spread characteristics of the

Flash LED.

Range

I Operational Modes:

Shutdown Mode

Shutdown Mode With NTC

Flash Mode: Up To 600 mA

Medium Flash Mode

Torch Mode: Up To 250 mA

I Adjustable Current In All Three Modes

I Peak Inductor Limited To 2.3 A Typ.

Three logic input signal can select 5 modes of

operation: shutdown mode (quiescent current less

than 1µA typ), shutdown mode with NTC active,

torch mode (Drive the led up to 250 mA), flash

mode (up to 600 mA) and medium flash mode that

reduce the flash current.

I LED Disconnected From The Battery In

Shutdown Mode

I Programmable Safety Shutdown In Flash

Mode

I Over Voltage Protection 5.3V

I Short Circuit Protection

I Over Temperature Protection

I < 1µA Shutdown Current

I QFN20 4 x 4 mm

The high efficiency of the converter allows having

the input current taken from the battery lower than

1.5A and the peak inductor current is limited to 2.3

Amps typical. Other features include softstart

control, thermal shutdown, short circuit protection,

over voltage protection and LED temperature

protection. Alternatively to LED temperature

protection, a safety flash time out can be easily

implemented. The device is packaged in a QFN

20 leads with a dimension of 4x4 mm and a height

of less than 1mm.

Applications

I CELL PHONE AND SMART PHONES

I CAMERA FLASHES/STROBES

I PDAS AND DIGITAL STILL CAMERAS

Order Codes

Type

Package

QFN20 (4x4 mm)

Comments

STCF02PMR

4500 parts per reel

Rev. 1

1/4

October 2005

For further information contact your local STMicroelectronics sales office..

www.st.com

12 3 4

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