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TPS22980RGPR PDF预览

TPS22980RGPR

更新时间： 2024-11-14 12:21:59
品牌 Logo 应用领域
德州仪器 - TI 电源电路电源管理电路
页数 文件大小 规格书
18页 739K
描述
3.3V TO 18V MUX with Overcurrent Limit

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TPS22980RGPR 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：HVQCCN, LCC20,.16SQ,20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.64Is Samacsys：N
其他特性：ALSO OPERATES IN SUPPLY VOLTAGE RANGE FROM 4.5 TO 19.8 VOLT可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQCC-N20
JESD-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：3.3,4.5/19.8 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)：0.2 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 mm
Base Number Matches：1

TPS22980RGPR 数据手册

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TPS22980  
www.ti.com  
SLVSB61B –DECEMBER 2011–REVISED APRIL 2012  
3.3V TO 18V MUX with Overcurrent Limit  
Check for Samples: TPS22980  
1
FEATURES  
APPLICATIONS  
•
•
•
•
•
•
•
Powered From 3.3V  
•
•
•
Notebook Computers  
Desktop Computers  
4.5V to 19.8V High Voltage Switch  
3V to 3.6V Switch  
Power Management Systems  
Adjustable Current Limit  
Thermal Shutdown  
Make Before Break Switch  
High Voltage Discharge Before Low Voltage  
Make  
•
Reverse Current Blocking  
DESCRIPTION  
The TPS22980 is a current-limited power mux providing a connection to a peripheral device from either a low  
voltage supply (3.0V up to 3.6V) or a high voltage supply (5V up to 18V). The desired output is selected by digital  
control signals.  
The high voltage (VHV) and low voltage (V3P3) switch current limits are set with external resistance. Once the  
current limit is reached, the TPS22980 will control the switch to maintain the current at the limit.  
When the high voltage supply is not present, the TPS22980 will maintain the connection to the output from the  
low voltage supply. When a high voltage line and high voltage enable signal is detected by the device, the high  
voltage switch will be turned on in conjunction with the low voltage switch until a reverse current is detected by  
the low voltage switch. The low voltage switch is then disabled allowing a seamless transition from a low voltage  
to a high voltage supply with minimal drop and shoot-through current.  
To prevent current backflow during a transition from a VHV connection to a V3P3 connection, the TPS22980 will  
break the VHV connection and discharge the output to approximately 3.3V. Once the output reaches 3.3V the  
device will connect V3P3 switch. If a load is present, the output will transition to 0V before returning to 3.3V.  
The TPS22980 is available in a 4mm x 4mm x 1mm QFN package.  
RSVD  
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.  
Copyright © 2011–2012, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
 
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