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TPS2051B-Q1 PDF预览

TPS2051B-Q1

更新时间： 2024-09-20 05:53:23
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德州仪器 - TI 开关
页数 文件大小 规格书
30页 646K
描述
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

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TPS2051B-Q1 数据手册

 浏览型号TPS2051B-Q1的Datasheet PDF文件第2页浏览型号TPS2051B-Q1的Datasheet PDF文件第3页浏览型号TPS2051B-Q1的Datasheet PDF文件第4页浏览型号TPS2051B-Q1的Datasheet PDF文件第5页浏览型号TPS2051B-Q1的Datasheet PDF文件第6页浏览型号TPS2051B-Q1的Datasheet PDF文件第7页 
TPS2041B-Q1  
TPS2042B-Q1  
TPS2051B-Q1  
www.ti.com  
SLVS782A –NOVEMBER 2007–REVISED JUNE 2010  
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES  
Check for Samples: TPS2041B-Q1, TPS2042B-Q1, TPS2051B-Q1  
1
FEATURES  
APPLICATIONS  
•
•
Heavy Capacitive Loads  
Short-Circuit Protection  
•
•
•
•
•
Qualified for Automotive Applications  
70-mΩ High-Side MOSFET  
500-mA Continuous Current  
TPS2041B  
DBV PACKAGE  
(TOP VIEW)  
Thermal and Short-Circuit Protection  
Accurate Current Limit:  
0.75 A (Min), 1.25 A (Max)  
OUT  
GND  
OC  
1
2
3
5
IN  
•
•
•
•
•
•
Operating Range: 2.7 V to 5.5 V  
0.6-ms Typical Rise Time  
4
EN  
Undervoltage Lockout  
TPS2042B  
D PACKAGE  
(TOP VIEW)  
TPS2051B  
D PACKAGE  
(TOP VIEW)  
Deglitched Fault Report (OC)  
No OC Glitch During Power Up  
Maximum Standby Supply Current:  
1 mA (Single, Dual) or 2 mA (Triple, Quad)  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
GND  
IN  
OC1  
GND  
OUT  
OUT  
OUT  
OC  
OUT1  
OUT2  
OC2  
IN  
IN  
•
•
•
Bidirectional Switch  
EN1  
EN2  
EN  
Junction Temperature Range: –40°C to 125°C  
ESD Protection Level Per AEC-Q100  
Classification  
•
UL Recognized, File Number E169910  
DESCRIPTION  
The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive  
loads and short circuits are likely to be encountered. These devices incorporate 70-mΩ N-channel MOSFET  
power switches for power-distribution systems that require multiple power switches in a single package. Each  
switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to  
control the power-switch rise times and fall times to minimize current surges during switching. The charge pump  
requires no external components and allows operation from supplies as low as 2.7 V.  
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current  
to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When  
continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction  
temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal  
shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains  
off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typ).  
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 © 2007–2010, 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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