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TPS2044B PDF预览

TPS2044B

更新时间： 2024-09-20 04:48:55
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德州仪器 - TI 开关
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49页 1069K
描述
CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

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TPS2044B 数据手册

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TPS2041B, TPS2042B  
TPS2043B, TPS2044B, TPS2051B  
DBV−5  
D−16  
D−8  
DGN−8  
TPS2052B, TPS2053B, TPS2054B  
www.ti.com  
SLVS514G–APRIL 2004–REVISED OCTOBER 2006  
CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES  
FEATURES  
APPLICATIONS  
•
Heavy Capacitive Loads  
•
•
•
•
70-mΩ High-Side MOSFET  
•
Short-Circuit Protections  
500-mA Continuous Current  
Thermal and Short-Circuit Protection  
TPS2041B/TPS2051B  
TPS2041B/TPS2051B  
TPS2042B/TPS2052B  
D AND DGN PACKAGES  
(TOP VIEW)  
D AND DGN PACKAGES  
(TOP VIEW)  
DBV PACKAGE  
(TOP VIEW)  
Accurate Current Limit  
(0.75 A min, 1.25 A max)  
OUT  
GND  
OC  
GND  
IN  
1
2
3
4
8
7
6
5
OUT  
OUT  
OUT  
OC  
GND  
IN  
1
2
3
4
8
7
6
5
OC1  
IN  
OUT1  
OUT2  
OC2  
†
IN  
†
EN1  
•
•
•
•
•
•
Operating Range: 2.7 V to 5.5 V  
0.6-ms Typical Rise Time  
†
†
EN  
EN2  
EN  
TPS2043B/TPS2053B  
D PACKAGE  
(TOP VIEW)  
TPS2044B/TPS2054B  
D PACKAGE  
(TOP VIEW)  
Undervoltage Lockout  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
GND  
IN1  
OC1  
OUT1  
OUT2  
OC2  
OC3  
OUT3  
NC  
GND  
IN1  
OC1  
Deglitched Fault Report (OC)  
No OC Glitch During Power Up  
OUT1  
OUT2  
OC2  
†
†
EN1  
EN1  
†
†
EN2  
GND  
EN2  
GND  
OC3  
Maximum Standby Supply Current:  
IN2  
†
IN2  
†
OUT3  
OUT4  
OC4  
1-µA (Single, Dual) or 2-µA (Triple, Quad)  
EN3  
EN3  
NC  
†
NC  
EN4  
•
•
•
•
Bidirectional Switch  
†All enable inputs are active high for the TPS205xB series.  
NC − No connect  
Ambient Temperature Range: -40°C to 85°C  
ESD Protection  
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 incorporates 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 typically.  
GENERAL SWITCH CATALOG  
TPS2042B 500 mA  
TPS2052B 500 mA  
80 mΩ, dual  
80 mΩ, quad  
33 mΩ, single  
80 mΩ, dual  
TPS201xA 0.2 A − 2 A  
80 mΩ, triple  
80 mΩ, quad  
TPS2046  
TPS2056  
TPS2062  
TPS2066  
TPS2060  
TPS2064  
250 mA  
250 mA  
1 A  
1 A  
1.5 A  
1.5 A  
TPS202x  
TPS203x  
0.2 A − 2 A  
0.2 A − 2 A  
TPS2080  
500 mA  
500 mA  
500 mA  
250 mA  
250 mA  
250 mA  
TPS2081  
TPS2082  
TPS2090  
TPS2091  
TPS2092  
TPS2043B 500 mA  
TPS2053B 500 mA  
TPS2047 250 mA  
TPS2057 250 mA  
TPS2085  
500 mA  
500 mA  
500 mA  
250 mA  
80 mΩ, single  
260 mΩ  
1.3 Ω  
TPS2014  
TPS2015  
600 mA  
1 A  
TPS2100/1  
TPS2044B 500 mA  
TPS2054B 500 mA  
TPS2048 250 mA  
TPS2058 250 mA  
TPS2086  
TPS2087  
TPS2095  
IN1 500 mA  
IN2 10 mA  
IN1  
IN2  
TPS2041B 500 mA  
TPS2051B 500 mA  
OUT  
TPS2102/3/4/5  
IN1 500 mA  
IN2 100 mA  
TPS2045  
TPS2055  
TPS2061  
TPS2065  
250 mA  
250 mA  
1 A  
TPS2096 250 mA  
TPS2097 250 mA  
1 A  
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 © 2004–2006, 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.  
1234567...49

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TPS2044B 替代型号

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