Datasheet > MIC2293C

MIC2293C

更新时间： 2024-11-14 04:59:07

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器肖特基二极管
页数	文件大小	规格书
9页	228K
描述
High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP

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MIC2293C 数据手册

MIC2292/93C

High Frequency PWM White LED Drivers

with Internal Schottky Diode and OVP

General Description

Features

The MIC2292C and MIC2293C are high frequency, Pulse

Width Modulator (PWM) boost regulators optimized for

constant-current, white LED driver applications. Because

of their constant PWM switching frequencies of 1.6MHz

and 2MHz, respectively, the MIC2292/93C can use the

smallest external components, allowing designers to avoid

sensitive IF bands in their RF applications.

• 2.5V to 10V input voltage

• Output voltage up to 34V

• Internal Schottky diode

• 1.6MHz PWM operation (MIC2292C)

• 2.0MHz PWM operation (MIC2293C)

• Stable with ceramic capacitors

• 15V and 34V output overvoltage protection options

• 500mA switch current rating

• 95mV feedback voltage

The products feature an internal Schottky diode and two

levels of output overvoltage protection allowing a small

size and efficient DC/DC solution that requires only four

external components.

• <1% line and load regulation

• <1µA shutdown current

The 2.5V to 10V input voltage range of MIC2292/3C allows

direct operation from 1- and 2-cell Li Ion as well as 3- to 4-

cell NiCad/NiMH/Alkaline batteries. The MIC2292/3C pro-

ducts are available in a small size 8-pin 2mm × 2mm MLF^®

package and have a junction temperature range of

–40°C to +125°C.

• Over-temperature protection

• UVLO

• 8-pin 2mm × 2mm MLF^®package

• –40°C to +125°C junction temperature range

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Applications

• White LED driver for backlighting:

– Cell phones

– PDAs

– GPS systems

– Digital cameras

– MP3 players

– IP phones

• Constant current power supplies

Typical Application

15µH

10µH

MIC2293C-15BML

MIC2292C-15BML

VIN

1µF

0.22µF

16V

0.22µF

16V

Li Ion

OUT

95mV

GND

1.6MHz PWM White LED Driver with 15V OVP

2MHz PWM White LED Driver with 15V OVP

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-090706

September 2006

12 3 4 5 6 7...9

中文翻译

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与MIC2293C相关器件

型号	品牌	获取价格	描述	数据表
MIC2293C-15BML	MICREL	获取价格	High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP
MIC2293C-15YML	MICREL	获取价格	High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP
MIC2293C-34BML	MICREL	获取价格	High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP
MIC2293C-34YML	MICREL	获取价格	High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP
MIC2293C-34YML-TR	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO8
MIC2295	MICREL	获取价格	High Power Density 1.2A Boost Regulator
MIC2295	MICROCHIP	获取价格	The MIC2295 is a 1.2Mhz, PWM DC/DC boost switching regulator. High power density is achi
MIC2295_05	MICREL	获取价格	High Power Density 1.2A Boost Regulator
MIC22950	MICREL	获取价格	10A Integrated Switch Synchronous Buck Regulator with Frequency Programmable to 2MHz
MIC22950	MICROCHIP	获取价格	The MIC22950 is a high efficiency 10A integrated switch synchronous buck (step-down) reg

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