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TPS2552DBVR-1

更新时间： 2024-11-20 07:04:47
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31页 1983K
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PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

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TPS2552DBVR-1 数据手册

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TPS2552  
TPS2553, TPS2552-1, TPS2553-1  
www.ti.com...................................................................................................................................... SLVS841C–NOVEMBER 2008–REVISED SEPTEMBER 2009  
PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES  
1
FEATURES  
DESCRIPTION  
2
•
•
•
•
•
•
Up to 1.5 A Maximum Load Current  
±6% Current-Limit Accuracy at 1.7 A (typ)  
Meets USB Current-Limiting Requirements  
Backwards Compatible with TPS2550/51  
Adjustable Current Limit, 75 mA–1700 mA (typ)  
The  
TPS2552/53  
and  
TPS2552-1/53-1  
power-distribution switches are intended for  
applications where precision current limiting is  
required or heavy capacitive loads and short circuits  
are encountered and provide up to 1.5  
A of  
continuous load current. These devices offer a  
programmable current-limit threshold between 75 mA  
and 1.7 A (typ) via an external resistor. Current-limit  
accuracy as tight as ±6% can be achieved at the  
higher current-limit settings. The power-switch rise  
and fall times are controlled to minimize current  
surges during turn on/off.  
Constant-Current (TPS2552/53) and Latch-off  
(TPS2552-1/53-1) Versions  
•
•
•
•
•
•
Fast Overcurrent Response - 2-µS (typ)  
85-mΩ High-Side MOSFET (DBV Package)  
Reverse Input-Output Voltage Protection  
Operating Range: 2.5 V to 6.5 V  
Built-in Soft-Start  
TPS2552/53 devices limit the output current to a safe  
level by using a constant-current mode when the  
output load exceeds the current-limit threshold.  
TPS2552-1/53-1 devices provide circuit breaker  
functionality by latching off the power switch during  
overcurrent or reverse-voltage situations. An internal  
15 kV ESD Protection per IEC 61000-4-2 (with  
External Capacitance)  
•
UL Listed – File No. E169910  
reverse-voltage  
comparator  
disables  
the  
APPLICATIONS  
power-switch when the output voltage is driven higher  
than the input to protect devices on the input side of  
the switch. The FAULT output asserts low during  
overcurrent and reverse-voltage conditions.  
•
•
•
•
USB Ports/Hubs  
Digital TV  
Set-Top Boxes  
VOIP Phones  
TPS2552/53  
5V USB  
TPS2552/TPS2553  
DRV PACKAGE  
(TOP VIEW)  
TPS2552/TPS2553  
DBV PACKAGE  
(TOP VIEW)  
USB Data  
0.1 mF  
USB  
Port  
Input  
RFAULT  
100 kW  
IN  
OUT  
6
6
1
2
3
1
2
3
OUT  
ILIM  
IN IN  
GND GND  
EN  
OUT  
ILIM  
FAULT  
PAD  
120 mF  
5
4
5
4
ILIM  
EN  
FAULT  
RILIM  
Fault Signal  
Control Signal  
FAULT  
EN  
USB requirement only*  
20 kW  
GND  
EN = Active Low for the TPS2552  
EN = Active High for the TPS2553  
Add -1 to part number for lach-off version  
*USB requirement that downstream  
facing ports are bypassed with at least  
120 mF per hub  
Power Pad  
Figure 1. Typical Application as USB Power Switch  
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.  
2
PowerPAD is a trademark of Texas Instruments.  
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 © 2008–2009, Texas Instruments Incorporated  
 
 
 
 
 
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TPS2552DBVR-1 替代型号

型号 品牌 替代类型 描述 数据表
TPS2552DBVT-1 TI

完全替代

 PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
TPS2552DBVR TI

完全替代

 PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
TPS2552DBVT TI

类似代替

 PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

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低电平有效且具有闭锁和反向阻断功能的 0.075-1.7A 可调节低电平有效、反向阻

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低电平有效且具有闭锁和反向阻断功能的 0.075-1.7A 可调节低电平有效、反向阻

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