Datasheet > LM3630A

LM3630A

更新时间： 2024-11-04 12:28:11

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
45页	520K
描述
LM3630A High-Efficiency Dual-String White LED Driver

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

LM3630A 数据手册

LM3630A

www.ti.com

SNVS974 –APRIL 2013

LM3630A High-Efficiency Dual-String White LED Driver

Check for Samples: LM3630A

FEATURES

DESCRIPTION

The LM3630A is a current mode boost converter

which supplies the power and controls the current in

up to two strings of 10 LEDs per string. Programming

is done over an I²C-compatible interface. The

maximum LED current is adjustable from 5 mA to

28.5 mA. At any given maximum LED current the

LED brightness is further adjusted with 256

exponential or linear dimming steps. Additionally,

pulsed width modulation ("PWM") brightness control

can be enabled allowing for LED current adjustment

by a logic level PWM signal.

•

Drives up to 2 strings of 10 series LEDs

Up to 87% efficient

8-bit I²C-Compatible Programmable

Exponential or Linear Brightness Control

•

PWM Brightness Control for CABC Operation

Independent Current Control per String

True Shutdown Isolation for LEDs

Internal Soft-Start Limits Inrush Current

Wide 2.3V to 5.5V Input Voltage Range

Adaptive Headroom

The boost switching frequency is programmable at

500 kHz for low switching loss performance or 1MHz

to allow the use of tiny low profile inductors. A setting

for a 10% offset of these frequencies is available.

Over-voltage protection is programmable at 16V,

24V, 32V, or 40V to accommodate a wide variety of

LED configurations and Schottky Diode/Output

Capacitor combinations.

Programmable 16V/24V/32V/40V Over-Voltage

Protection

•

Selectable Boost Frequency of 500 kHz or

1MHz with optionally additional offset

•

Low Profile 12-Bump DSBGA Package

Solution Size 32mm²

The device operates over the 2.3V to 5.5V operating

voltage range and -40°C to +85°C ambient

temperature range. The LM3630A is available in an

ultra-small 12-bump DSBGA package.

APPLICATIONS

•

Smart-Phone LCD Backlighting

LCD + Keypad Lighting

TYPICAL APPLICATION CIRCUIT

VOUT up to 40V

VIN

CIN

COUT

OVP

SDA

SCL

INTN

HWEN

PWM

SEL

LM3630A

LED1

LED2

GND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...45

中文翻译

下载PDF

LM3630A 替代型号

型号	品牌	替代类型	描述	数据表
LM3631	TI	功能相似	适用于 LCD 面板的集成式 WLED 背光驱动器和偏置电源
LM3697	TI	功能相似	High-Efficiency Three-String White LED Driver
TPS61161	TI	功能相似	White LED Driver With Digital and PWM Brightness Control in 2mm x 2mm QFN Package for up t

与LM3630A相关器件

型号	品牌	获取价格	描述	数据表
LM3630A_15	TI	获取价格	High-Efficiency Dual-String White LED Driver
LM3630ATME	TI	获取价格	LM3630A High-Efficiency Dual-String White LED Driver
LM3630ATMX	TI	获取价格	LM3630A High-Efficiency Dual-String White LED Driver
LM3631	TI	获取价格	适用于 LCD 面板的集成式 WLED 背光驱动器和偏置电源
LM3631YFFR	TI	获取价格	适用于 LCD 面板的集成式 WLED 背光驱动器和偏置电源 \| YFF \| 24 \| -
LM3632A	TI	获取价格	具有偏置电源和 1.5A LED 闪光灯驱动器的单芯片背光
LM3632AYFFR	TI	获取价格	具有偏置电源和 1.5A LED 闪光灯驱动器的单芯片背光 \| YFF \| 30 \| -4
LM3633	TI	获取价格	适用于智能手机的完整照明电源解决方案
LM3633YFQR	TI	获取价格	适用于智能手机的完整照明电源解决方案 \| YFQ \| 20 \| -40 to 85
LM3639A	TI	获取价格	LM3639A Single Chip 40V Backlight 1.5A Flash LED Driver

与LM3630A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

35
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

31

产品中心

服务支持

精选活动

关于我们

帮助中心

LM3630A

LM3630A 数据手册

LM3630A 替代型号

与LM3630A相关器件

与LM3630A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

LM3630A

LM3630A 数据手册

LM3630A 替代型号

与LM3630A相关器件

与LM3630A相关文章

您还可以找

您在本页遇到什么问题？