LT3497EDDBTRMPBF

更新时间： 2024-11-04 13:09:39

品牌	Logo	应用领域
凌特 - Linear		驱动器肖特基二极管
页数	文件大小	规格书
24页	450K
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

LT3497EDDBTRMPBF 数据手册

LT3498

20mA LED Driver and

OLED Driver with Integrated

Schottky in 3mm x 2mm DFN

DESCRIPTION

FEATURES

The LT^®3498 is a dual output boost converter featuring a

2.3MHzPWMLEDDriverandPFMOLEDDriver.Itincludes

an internal power switch and Schottky diode for each

driver. Both converters can be independently shut down

and modulated. This highly integrated power solution is

ideal for dual display electronic devices.

■

Dual Output Boost for Dual Display Devices

■

Drives Up to Six White LEDs and OLED/LCD Bias

■

Internal Power Switches and Schottky Diodes

■

Independent Dimming and Shutdown

■

200mV High Side Sense on LED Driver Allows

“One-Wire Current Source”

■

Wide Input Voltage Range: 2.5V to 12V

The2.3MHzstep-upconverterisdesignedtodriveuptosix

white LEDs in series from a Li-Ion cell. The device features

a unique high side LED current sense that enables the part

tofunctionasa“one-wire”currentsource—onesideofthe

LEDstringcanbereturnedtogroundanywhere.Traditional

LED drivers use a grounded resistor to sense LED current,

requiring a 2-wire connection to the LED string.

■

Wide Output Voltage Range: Up to 32V

■

2.3MHz PWM Frequency for LED Driver

■

PFM for OLED Driver is Non-Audible Over Entire

Load Range

■

Open LED Protection (27V Maximum on CAP1 Pin)

■

OLED Output Disconnect

■

Available in 12-Pin DFN Package

■

The PFM OLED driver is a low noise boost converter that

featuresanovelcontroltechnique.*Theconvertercontrols

power delivery by varying both the peak inductor current

and switch off time. This technique results in low output

voltage ripple, as well as, high efﬁciency over a wide load

range. The off time of the switch is not allowed to exceed a

ﬁxed level, guaranteeing a switching frequency that stays

above the audio band.

1mm Tall Solution Height

APPLICATIONS

■

Cellular Phones

■

PDAs, Handheld Computers

■

Digital Cameras

■

MP3 Players

■

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

GPS Receivers

*Patent Pending

TYPICAL APPLICATION

Li-Ion to Six White LEDs and OLED/LCD Bias

OLED Efﬁciency

400

350

300

250

200

150

100

= 3V TO 5V

= 3.6V

OUT2

4.7µF

0.47µF

= 16V

LOAD FROM V

OUT2

15µH

16V

24mA

1µF

CAP1 SW1

SW2 CAP2 V

OUT2

LT3498

LED1 CTRL1 GND1 GND2 CTRL2 FB2

OFF OFF

10Ω

10µF

2.21MΩ

20mA

POWER LOSS

FROM V

SHUTDOWN

AND

DIMMING

CONTROL

SHUTDOWN

AND

OUT2

CONTROL

100

0.1

3498 TA01

LED CURRENT (mA)

3498 TA01b

3498f

12 3 4 5 6 7...24

中文翻译

下载PDF

与LT3497EDDBTRMPBF相关器件

型号	品牌	获取价格	描述	数据表
LT3498	Linear	获取价格	20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN
LT3498	ADI	获取价格	采用 3mm x 2mm DFN 封装、具集成肖特基二极管的 20mA LED 驱动器和
LT3498EDDB	Linear	获取价格	20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN
LT3498EDDB#TR	Linear	获取价格	IC LED DISPLAY DRIVER, PDSO12, 3 X 2 MM, PLASTIC, DFN-12, Display Driver
LT3498EDDB#TRM	Linear	获取价格	IC LED DISPLAY DRIVER, PDSO12, 3 X 2 MM, PLASTIC, DFN-12, Display Driver
LT3498EDDB#TRMPBF	ADI	获取价格	20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN
LT3500	Linear	获取价格	Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller
LT3500	ADI	获取价格	单片式 2A 降压型稳压器和线性稳压器/控制器
LT3500EDD#PBF	Linear	获取价格	LT3500 - Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller; Package: DFN;
LT3500EDD#TRPBF	Linear	获取价格	暂无描述

与LT3497EDDBTRMPBF相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

13
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

7
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

34
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

30

产品中心

服务支持

精选活动

关于我们

帮助中心

LT3497EDDBTRMPBF

LT3497EDDBTRMPBF 数据手册

与LT3497EDDBTRMPBF相关器件

与LT3497EDDBTRMPBF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

LT3497EDDBTRMPBF

LT3497EDDBTRMPBF 数据手册

与LT3497EDDBTRMPBF相关器件

与LT3497EDDBTRMPBF相关文章

您还可以找

您在本页遇到什么问题？