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CAT3648HV3-GT2 PDF预览

CAT3648HV3-GT2

更新时间: 2024-01-24 07:05:00
品牌 Logo 应用领域
CATALYST 驱动器
页数 文件大小 规格书
14页 336K
描述
4-Channel Ultra High Efficiency Quad-Mode⑩ LED Driver with 32 Dimming Levels

CAT3648HV3-GT2 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:3 X 3 MM, 0.80 MM HEIGHT, HELOGEN FREE AND ROHS COMPLIANT, MO-220, TQFN-16针数:16
Reach Compliance Code:unknown风险等级:5.74
数据输入模式:SERIAL接口集成电路类型:LED DISPLAY DRIVER
JESD-30 代码:S-XQCC-N16JESD-609代码:e4
长度:3 mm湿度敏感等级:NOT SPECIFIED
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认证状态:COMMERCIAL
座面最大高度:0.8 mm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:NICKEL PALLADIUM GOLD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

CAT3648HV3-GT2 数据手册

 浏览型号CAT3648HV3-GT2的Datasheet PDF文件第6页浏览型号CAT3648HV3-GT2的Datasheet PDF文件第7页浏览型号CAT3648HV3-GT2的Datasheet PDF文件第8页浏览型号CAT3648HV3-GT2的Datasheet PDF文件第10页浏览型号CAT3648HV3-GT2的Datasheet PDF文件第11页浏览型号CAT3648HV3-GT2的Datasheet PDF文件第12页 
CAT3648  
BLOCK DIAGRAM  
C1+  
C1-  
C2-  
C2+  
VIN  
VOUT  
1x mode (LDO)  
4/3x, 3/2x, 2x Charge Pump  
Mode Control  
1, 1.3MHz  
Oscillator  
EN/DIM  
LED1  
LED2  
LED3  
LED4  
100k  
Serial  
Reference  
Voltage  
Interface  
LED Channel  
Current Regulators  
Current  
Setting DAC  
Registers  
RSET  
GND  
Figure 2. CAT3648 Functional Block Diagram  
BASIC OPERATION  
At power-up, the CAT3648 starts operating in 1x  
mode where the output will be approximately equal  
to the input supply voltage (less any internal voltage  
losses). If the output voltage is sufficient to regulate  
all LED currents, the device remains in 1x operating  
mode.  
This sequence repeats in the 1.33x and 1.5x mode until  
the driver enters the 2x mode. In 1.5x mode, the output  
voltage is approximately equal to 1.5 times the input  
supply voltage. While in 2x mode, the output is  
approximately equal to 2 times the input supply voltage.  
If the device detects a sufficient input voltage is present  
to drive all LED currents in 1x mode, it will change  
automatically back to 1x mode. This only applies for  
changing back to the 1x mode. The difference between  
the input voltage when exiting 1x mode and returning to  
1x mode is called the 1x mode transition hysteresis  
(VHYS) and is about 400mV.  
If the input voltage is insufficient or falls to a level  
where the regulated currents cannot be maintained,  
the device automatically switches into 1.33x mode  
(after a fixed delay time of about 120μs). In 1.33x  
mode, the output voltage is approximately equal to  
1.33 times the input supply voltage (less any internal  
voltage losses).  
© Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
9
Doc. No. MD-5031, Rev. A  

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