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CAT3644HV3-T2

更新时间： 2024-01-23 17:22:22
品牌 Logo 应用领域
CATALYST 驱动器
页数 文件大小 规格书
14页 294K
描述
4-Channel Ultra High Efficiency Quad-Mode TM LED Driver

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CAT3644HV3-T2 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SON包装说明：HVQCCN, LCC16,.12SQ,20
针数：16Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.32数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-XQCC-N16
JESD-609代码：e3长度：3 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1区段数：4
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：UNSPECIFIED
封装代码：HVQCCN封装等效代码：LCC16,.12SQ,20
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：3.6 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Display Drivers最大供电电压：5.5 V
最小供电电压：2.5 V标称供电电压：3.6 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：MATTE TIN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：40宽度：3 mm
Base Number Matches：1

CAT3644HV3-T2 数据手册

 浏览型号CAT3644HV3-T2的Datasheet PDF文件第2页浏览型号CAT3644HV3-T2的Datasheet PDF文件第3页浏览型号CAT3644HV3-T2的Datasheet PDF文件第4页浏览型号CAT3644HV3-T2的Datasheet PDF文件第5页浏览型号CAT3644HV3-T2的Datasheet PDF文件第6页浏览型号CAT3644HV3-T2的Datasheet PDF文件第7页 
CAT3644  
4-Channel Ultra High Efficiency Quad-Mode™  
LED Driver  
FEATURES  
DESCRIPTION  
„ High efficiency 1.33x charge pump  
„ Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x  
„ Drives up to 4 LEDs at 25mA each  
„ 1-wire EZDim™ LED current programming  
„ Power efficiency up to 92%  
The CAT3644 is a high efficiency quad-mode  
fractional charge pump that can drive up to four LEDs  
programmable by a one wire digital interface. The  
inclusion of a 1.33x fractional charge pump mode  
increases device efficiency by up to 10% over tradi–  
tional 1.5x charge pumps with no added external  
capacitors.  
„ Low noise input ripple in all modes  
„ “Zero” current shutdown mode  
„ Soft start and current limiting  
Low noise input ripple is achieved by operating at a  
constant switching frequency which allows the use of  
small external ceramic capacitors. The multi-fractional  
charge pump supports a wide range of input voltages  
from 2.5V to 5.5V.  
„ Short circuit protection  
„ Thermal shutdown protection  
The EN/DIM logic input functions as a chip enable and  
a digital dimming interface for current setting of all  
LEDs. Six different current ratios are available via the  
interface.  
„ 3mm x 3mm, 16-lead TQFN package  
APPLICATION  
„ LCD Display Backlight  
„ Cellular Phones  
The device is available in the tiny 16-lead TQFN  
3mm x 3mm package with a max height of 0.8mm.  
„ Digital Still Cameras  
„ Handheld Devices  
The 1.33x charge pump with two fly capacitors is a  
patent pending architecture exclusive to Catalyst  
Semiconductor.  
ORDERING INFORMATION  
Part  
Number  
Package  
Marking  
Package  
For Ordering Information details, see page 13.  
CAT3644HV3-T2 TQFN-16 3x3mm(1)  
Note: (1) Matte-Tin Plated Finish (RoHS-compliant)  
PIN CONFIGURATION  
JAAG  
TYPICAL APPLICATION CIRCUIT  
1µF  
1µF  
C1+  
IN  
C1- C2+  
C2-  
16 15 14 13  
V
White LEDs  
IN  
V
OUT  
V
V
OUT  
CIN  
1µF  
C
2.4V  
to  
5.5V  
LED2  
LED3  
LED4  
RSET  
1
2
3
4
12 C2-  
OUT  
1µF  
CAT3644  
11 C2+  
10 C1-  
LED1  
LED2  
LED3  
LED4  
1-Wire  
EZDimTMꢀ  
EN/DIM  
RSET  
20mA  
Programming  
9
C1+  
5
6
7
8
3.8kΩ  
GND  
© 2007 Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
1
Doc. No. 5023, Rev. B  
 
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