SC644ULTRT

更新时间： 2024-11-08 06:10:15

品牌	Logo	应用领域
商升特 - SEMTECH		显示驱动器驱动程序和接口接口集成电路
页数	文件大小	规格书
26页	589K
描述
Light Management Unit with 4 LDOs and SemPulse®Interface

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

SC644ULTRT 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	3 X 3 MM, 0.60 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, MLPQ-20	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.81
数据输入模式：	SERIAL	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-XQCC-N20	JESD-609代码：	e3
长度：	3 mm	复用显示功能：	NO
功能数量：	1	区段数：	6
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC20,.11SQ,16
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	3.7 V
认证状态：	Not Qualified	座面最大高度：	0.6 mm
子类别：	Display Drivers	最大供电电压：	5.5 V
最小供电电压：	3 V	标称供电电压：	3.7 V
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：	0.4 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	3 mm
Base Number Matches：	1

SC644ULTRT 数据手册

SC644

Light Management Unit with

4 LDOs and SemPulse® Interface

POWER MANAGEMENT

Features

Description



Input supply voltage range — 2.9V to 5.5V

Very high eﬃciency charge pump driver system with

three modes — ꢀx, ꢀ.5x, and 2x

Six programmable current sinks with 29 increments

from 0mA to 25mA

The SC644 is a high eﬃciency charge pump LED driver

using Semtech’s proprietary charge pump technology.

Performance is optimized for use in single cell Li-ion

battery applications.



Display backlighting is provided through six matched

current sinks with integrated fade-in and fade-out con-

trols. The LEDs can be driven as a single set or as two

diﬀerent sets (for main and sub displays) with indepen-

dent controls. Four low noise, low dropout (LDO) regulators

are provided to supply power for camera module I/O and

other peripheral circuits.



Four programmable 200mA low-noise LDO regulators

Programmable driver conﬁgurations for main and

sub-display backlight

Fade-in/fade-out feature for main and sub display

backlight



SemPulse single wire interface

Backlight current accuracy — ꢀ.5% typical

Backlight current matching — 0.5% typical

Automatic sleep mode with LEDs oﬀ

Shutdown current — 0.ꢀµA typical

Ultra-thin package — 3 x 3 x 0.6 (mm)

Lead free and halogen free

The SC644 uses the proprietary SemPulse single wire

interface. This interface controls all functions of the device,

including backlight currents and LDO voltage outputs.

The single wire interface minimizes microcontroller and

interface pin counts.

WEEE and RoHS compliant

Applications

The SC644 enters sleep mode when all the LED drivers are

disabled. In this mode, the quiescent current is reduced

while the device continues to monitor the SemPulse inter-

face. Any combination of LDOs may be enabled when in

sleep mode.



Cellular phones, smart phones, and PDAs

LCD display modules

Portable media players

Digital cameras and GPS units

Display backlighting and LED indicators

Typical Application Circuit

Sub

Backlight

SC644

Main Backlight

V_BAT= 2.9V to 5.5V

OUT

SemPulse

Interface

4.7µF

SPIF

4.7µF

BL1

BL2

BYP

BL3

BL4

22nF

BL5

BL6

AGND

PGND

LDO1

LDO2

LDO3

LDO4

V_LDO1= 1.5V to 3.3V

V_LDO2= 1.2V to 1.8V

V_LDO3= 1.5V to 3.3V

Motor

1.0µF

2.2µF

US Patents: 6,504,422; 6,794,926

ꢀ

October 8, 2009

12 3 4 5 6 7...26

中文翻译

下载PDF

与SC644ULTRT相关器件

型号	品牌	获取价格	描述	数据表
SC648ADPR	MSPI	获取价格	Voltage Rating 10 to 48 VAC/DC
SC648ANJR	MSPI	获取价格	Voltage Rating 10 to 48 VAC/DC
SC648ANPR	MSPI	获取价格	Voltage Rating 10 to 48 VAC/DC
SC652	SEMTECH	获取价格	Backlight Driver for 5 LEDs with Charge Pump and PWM Control
SC6523	ETC	获取价格
SC652EVB	SEMTECH	获取价格	Backlight Driver for 5 LEDs with Charge Pump and PWM Control
SC652ULTRT	SEMTECH	获取价格	Backlight Driver for 5 LEDs with Charge Pump and PWM Control
SC653	SEMTECH	获取价格	Light Management Unit with 2 LDOs and SemPuls
SC653EVB	SEMTECH	获取价格	Light Management Unit with 2 LDOs and SemPuls
SC653ULTRT	SEMTECH	获取价格	Light Management Unit with 2 LDOs and SemPuls

与SC644ULTRT相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

19
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

16
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

39
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

37

产品中心

服务支持

精选活动

关于我们

帮助中心

SC644ULTRT

SC644ULTRT 技术参数

SC644ULTRT 数据手册

与SC644ULTRT相关器件

与SC644ULTRT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

SC644ULTRT

SC644ULTRT 技术参数

SC644ULTRT 数据手册

与SC644ULTRT相关器件

与SC644ULTRT相关文章

您还可以找

您在本页遇到什么问题？