MIC2297-15YMLTR

更新时间： 2024-11-14 13:11:31

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器稳压器
页数	文件大小	规格书
11页	277K
描述
暂无描述

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MIC2297-15YMLTR 数据手册

MIC2297

40V PWM Boost Regulator

White LED Driver

General Description

Features

The MIC2297 is a 600KHz PWM boost-switching regulator

that is optimized for driving 6-10 series white LEDs. With

its internal 40V switch and a guaranteed switch current of

1.2A, the MIC2297 easily drives a string of 10 white LEDs

in series at 20mA, ensuring a high level of brightness and

eliminating several ballast resistors.

• 2.5V to 10V input voltage range

• Output voltage up to 40V

• 1.2A switch current

• 600KHz PWM operation

• Trimmed 200mV feedback voltage

• Output over voltage protection (fixed or adjustable)

• PWM Brightness Control

• DAC Brightness Control

• <1% line regulation

The MIC2297 implements constant frequency 600KHz

PWM control. The high frequency PWM operation saves

board space by reducing external component sizes. The

added benefit of the constant frequency PWM operation is

much lower noise and input ripple injected back to the

battery source than with variable frequency topologies.

• 1µA shutdown current

• Over temperature protection

• UVLO

To optimize efficiency, the feedback voltage is set to

200mV. This reduced voltage reduces the power

dissipation in the current set resistor, and allows the lowest

total output voltage, hence minimal current draw from the

battery.

• 10-pin 2.5mm x 2.5mm MLF^®package

• –40^oC to +125^oC junction temperature range

Applications

The MIC2297 is available with output over-voltage

protection that protects the IC and external components in

case of open LED conditions.

• PDAs

• GPS systems

• Smart phones

• Mini PCs

• Digital cameras

• IP phones

The MIC2297 is available in low profile small size 10-pin

2.5mm x 2.5mm MLF^®package. The MIC2297 has a

junction temperature range of –40°C to +125°C.

• LED flashlights

___________________________________________________________________________________________________________

Typical Applications

6.8µH-22µH

VIN

0.47µF

/50V

0.47µF

/50V

1µF

OVP

PWM

1µF

OVP

1-Cell

Li Ion

1-Cell

Li Ion

MIC2297

-42BML

MIC2297

-42BML

BRT

REF

BRT

3V to 4.2V

REF

1µF

COMP

AGND PGND COMP

AGND PGND

0.1µF

10 Series LED Driver with Output OVP

10 Series LED Driver with PWM Brightness Control

MLF and MicroLeadFrame is a trademark 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

M9999-032708

March 2008

12 3 4 5 6 7...11

中文翻译

下载PDF

与MIC2297-15YMLTR相关器件

型号	品牌	获取价格	描述	数据表
MIC2297-42YML	ROCHESTER	获取价格	3A SWITCHING REGULATOR, 675kHz SWITCHING FREQ-MAX, PDSO10, 2.50 X 2.50 MM, LEAD FREE, MLF-
MIC2297-42YML	MICREL	获取价格	40V PWM Boost Regulator White LED Driver
MIC2297-42YMLTR	MICROCHIP	获取价格	3A SWITCHING REGULATOR, 675kHz SWITCHING FREQ-MAX, PDSO10, 2.50 X 2.50 MM, LEAD FREE, MLF-
MIC2297-42YMLTR	ROCHESTER	获取价格	3 A SWITCHING REGULATOR, 675 kHz SWITCHING FREQ-MAX, PDSO10, 2.50 X 2.50 MM, LEAD FREE, ML
MIC2298	MICREL	获取价格	3.5A Minimum, 1MHz Boost High Brightness White LED Driver
MIC2298	MICROCHIP	获取价格	The MIC2298 is a high power boost-switching regulator that is optimized for constant-curre
MIC2298_11	MICREL	获取价格	3.5A Minimum, 1MHz Boost High Brightness White LED Driver
MIC229815YML	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO12
MIC2298-15YML	MICREL	获取价格	3.5A Minimum, 1MHz Boost High Brightness White LED Driver
MIC2298-15YMLTR	MICREL	获取价格	LED DISPLAY DRIVER, QCC12, 3 X 3 MM, GREEN, MLF-12

与MIC2297-15YMLTR相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

2
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

2
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

29
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

12

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2297-15YMLTR

MIC2297-15YMLTR 数据手册

与MIC2297-15YMLTR相关器件

与MIC2297-15YMLTR相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2297-15YMLTR

MIC2297-15YMLTR 数据手册

与MIC2297-15YMLTR相关器件

与MIC2297-15YMLTR相关文章

您还可以找

您在本页遇到什么问题？