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TPS22981RGPR PDF预览

TPS22981RGPR

更新时间: 2024-11-14 12:25:11
品牌 Logo 应用领域
德州仪器 - TI 模拟IC复用器信号电路
页数 文件大小 规格书
19页 432K
描述
3.3V to 18V Thunderbolt Power Mux

TPS22981RGPR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:QFN-20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:1.52Is Samacsys:N
其他特性:ALSO OPERATES WITH 4.5 TO 19.8V SUPPLY模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:S-PQCC-N20JESD-609代码:e4
长度:4 mm湿度敏感等级:2
信道数量:1功能数量:1
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:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC20,.16SQ,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:3.3,15 V
认证状态:Not Qualified座面最大高度:0.93 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.5 mA
最大供电电压 (Vsup):3.6 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
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
宽度:4 mmBase Number Matches:1

TPS22981RGPR 数据手册

 浏览型号TPS22981RGPR的Datasheet PDF文件第2页浏览型号TPS22981RGPR的Datasheet PDF文件第3页浏览型号TPS22981RGPR的Datasheet PDF文件第4页浏览型号TPS22981RGPR的Datasheet PDF文件第5页浏览型号TPS22981RGPR的Datasheet PDF文件第6页浏览型号TPS22981RGPR的Datasheet PDF文件第7页 
TPS22981  
www.ti.com  
SLVSBM6 DECEMBER 2012  
3.3V to 18V Thunderbolt Power Mux  
Check for Samples: TPS22981  
1
FEATURES  
DESCRIPTION  
The TPS22981 is  
providing a connection to a peripheral device from  
either a low voltage supply (3V to 3.6V) or a high  
voltage supply (4.5V to 19.8V). The desired output is  
selected by digital control signals.  
Powered from 3.3V  
a
current-limited power mux  
4.5V to 19.8V High Voltage Switch  
3V to 3.6V Switch  
Adjustable Current Limit  
Thermal Shutdown  
The high voltage (VHV) and low voltage (V3P3)  
switch current limits are set with external resistance.  
Once the current limit is reached, the TPS22981 will  
control the switch to maintain the current at this limit.  
Make Before Break Switch  
High Voltage Discharge Before Low Voltage  
Make  
Reverse Current Blocking  
When the high voltage supply is not present, the  
TPS22981 will maintain the connection to the output  
from the low voltage supply. Upon the presence of a  
high voltage line and high voltage enable signal, the  
high voltage switch is turned on in conjunction with  
the low voltage switch until a reverse current is  
detected through the low voltage switch, allowing a  
seamless transition from low voltage to the high  
voltage supply with minimal droop and shoot-through  
current.  
APPLICATIONS  
Notebook Computers  
Desktop Computers  
Power Management Systems  
connector  
To prevent current backflow during a switch over from  
a
VHV connection to a V3P3 connection, the  
TPS22981 will break the VHV connection, discharge  
the output to approximately 3.3V and then make the  
V3P3 connection. The output will transition to 0V  
when a load is present, before returning to 3.3V.  
RSET_S0  
RSET_S3  
RSET_V3P3  
ISET_S0  
ISET_S3  
ENHVU  
S0  
V3P3OUT  
V3P3  
ISET_V3P3  
VHV  
The TPS22981 is available in a 4mm x 4mm x 1mm  
QFN package.  
Exposed Pad  
DC/DC  
V3P3  
VHV  
DC/DC  
µC  
Figure 1. Typical Application  
1
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.  
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.  
Copyright © 2012, Texas Instruments Incorporated  

TPS22981RGPR 替代型号

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