Datasheet > LM3503SQ-25

LM3503SQ-25

更新时间： 2024-01-08 04:20:14

品牌	Logo	应用领域
美国国家半导体 - NSC		驱动器
页数	文件大小	规格书
20页	1062K
描述
Dual-Display Constant Current LED Driver with Analog Brightness Control

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技术参数
数据手册
替代型号

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LM3503SQ-25 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	QCCN, LCC16,.16SQ,20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.2
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	S-PQCC-N16
JESD-609代码：	e3	湿度敏感等级：	1
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	QCCN	封装等效代码：	LCC16,.16SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER
峰值回流温度（摄氏度）：	260	电源：	3/5 V
认证状态：	Not Qualified	子类别：	Display Drivers
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

LM3503SQ-25 数据手册

July 2005

LM3503

Dual-Display Constant Current LED Driver with Analog

Brightness Control

80% Peak Efficiency

General Description

n Output Voltage Protection Options: 16V, 25V, 35V & 44V

n Input Under-Voltage Protection

n Internal Soft Start Eliminates Inrush Current

n 1 MHz Constant-Switching Frequency

n Analog Brightness Control

The LM3503 is a white LED driver for lighting applications.

For dual display backlighting applications, the LM3503 pro-

vides a complete solution. The LM3503 contains two internal

white LED current bypass FET (Field Effect Transistor)

switches. The white LED current can be adjusted with a DC

voltage from a digital to analog converter or RC filtered PWM

(pulse-width-modulated) signal at the Cntrl pin.

n Wide Input Voltage Range: 2.5V to 5.5V

n Low Profile Packages: 1 mm Height

— 10 Bump MicroSMD

— 16 Pin LLP

With no external compensation, cycle-by-cycle current limit,

output over-voltage protection, input under-voltage protec-

tion, and dynamic white LED current control capability, the

LM3503 offers superior performance over other step-up

white LED drivers.

Applications

n Dual-Display Display Backlighting in Portable devices

n Cellular Phones and PDAs

Features

n Drives up to 4, 6, 8 or 10 White LEDs for Dual Display

Backlighting

Typical Application

20128662

DS201286

www.national.com

12 3 4 5 6 7...20

中文翻译

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LM3503SQ-25 替代型号

型号	品牌	替代类型	描述	数据表
LM3503SQ-25/NOPB	TI	功能相似	Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85

与LM3503SQ-25相关器件

型号	品牌	获取价格	描述	数据表
LM3503SQ-25/NOPB	TI	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85
LM3503SQ-35	NSC	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control
LM3503SQ-35/NOPB	TI	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85
LM3503SQ-44	NSC	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control
LM3503SQ-44	TI	获取价格	LED DISPLAY DRIVER, PQCC16, TLLP-16
LM3503SQX-16	NSC	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control
LM3503SQX-16/NOPB	TI	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85
LM3503SQX-25	NSC	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control
LM3503SQX-25/NOPB	TI	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85
LM3503SQX-35	NSC	获取价格	Dual-Display Constant Current LED Driver with Analog Brightness Control

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