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TPS20XXC_1110

更新时间： 2024-11-20 08:39:35
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
29页 1490K
描述
Current-Limited, Power-Distribution Switches

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TPS20XXC_1110 数据手册

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TPS20xxC  
www.ti.com  
SLVSAU6C –JUNE 2011–REVISED OCTOBER 2011  
Current-Limited, Power-Distribution Switches  
Check for Samples: TPS20xxC  
1
FEATURES  
DESCRIPTION  
The TPS20xxC power-distribution switch family is  
intended for applications such as USB where heavy  
capacitive loads and short-circuits are likely to be  
encountered. This family offers multiple devices with  
fixed current-limit thresholds for applications between  
0.5 A and 2 A.  
2
•
•
•
•
•
•
•
•
•
•
Single Power Switch Family  
Pin for Pin with Existing TI Switch Portfolio  
Rated currents of 0.5 A, 1 A, 1.5 A, 2 A  
±20% Accurate, Fixed, Constant Current Limit  
Fast Over-Current Response – 2 µs  
Deglitched Fault Reporting  
The TPS20xxC family limits the output current to a  
safe level by operating in a constant-current mode  
when the output load exceeds the current-limit  
threshold. This provides a predictable fault current  
under all conditions. The fast overload response time  
eases the burden on the main 5 V supply to provide  
regulated power when the output is shorted. The  
power-switch rise and fall times are controlled to  
minimize current surges during turn-on and turn-off.  
Output Discharge When Disabled  
Reverse Current Blocking  
Built-in Softstart  
Ambient Temperature Range: –40°C to 85°C  
APPLICATIONS  
•
•
•
•
USB Ports/Hubs, Laptops, Desktops  
High-Definition Digital TVs  
Set Top Boxes  
DGN, DGK  
(Top View)  
DBV  
(Top View)  
8
7
6
5
GND  
IN  
IN  
1
2
3
4
OUT  
OUT  
OUT  
FLT  
OUT  
1
5
IN  
Short-Circuit Protection  
GND  
FLT  
2
3
EN or EN  
4
EN or EN  
DGN Only  
TYPICAL APPLICATION  
VIN  
RFLT  
10 kW  
IN  
VOUT  
OUT  
150 mF  
GND  
Pad*  
Fault Signal  
FLT  
EN or  
EN  
Control Signal  
* DGN only  
Figure 1. Typical Application  
Table 1. DEVICES(1)  
STATUS  
MAXIMUM OPERATING  
CURRENT  
DEVICES  
MSOP-8  
( PowerPad™)  
SOT23-5  
MSOP-8  
0.5  
1
TPS2051C  
TPS2065C  
-
Active  
-
Active  
Active  
Active  
Active  
-
-
1.5  
2
TPS2069C  
-
-
TPS2000C / 1C  
Active  
(1) For more details, see the DEVICE INFORMATION table.  
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.  
PowerPad is a trademark of Texas Instruments.  
2
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 © 2011, Texas Instruments Incorporated  
 
 
 
 
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