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參數資料
| 型號： | TPS2051BDGNRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | GREEN, PLASTIC, MSOP-8 |
| 文件頁數： | 1/51頁 |
| 文件大小： | 1451K |
| 代理商： | TPS2051BDGNRG4 |
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D16
D8
DBV5
DRB8
DGN8
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
IN2
EN3
NC
OC3
OUT3
NC
1
2
3
4
8
7
6
5
GND
IN
EN
OUT
OC
TPS2041B/TPS2051B
D ANDDGNPACKAGES
(TOP VIEW)
1
2
3
4
8
7
6
5
GND
IN
EN1
EN2
OC1
OUT1
OUT2
OC2
TPS2042B/TPS2052B
DRBPACKAGES
(TOP VIEW)
OC1
OUT1
OUT2
OC2
GND
IN1
EN1
EN2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
IN2
EN3
EN4
OC3
OUT3
OUT4
OC4
OC1
OUT1
OUT2
OC2
GND
IN1
EN1
EN2
Noconnect
NC
Allenableinputsareactivehighforthe TPS205xBseries.
TPS2044B/TPS2054B
D PACKAGE
(TOP VIEW)
TPS2043B/TPS2053B
DPACKAGE
(TOP VIEW)
GND
OUT
TPS2041B/TPS2051B
DBVPACKAGE
(TOP VIEW)
OC
IN
EN
4
3
2
1
5
6
7
8
TPS2042B/TPS2052B
D ANDDGNPACKAGES
(TOP VIEW)
TPS2014600mA
TPS20151 A
TPS2041B500mA
TPS2051B500mA
TPS2045A
250mA
TPS2049100mA
TPS2055A
250mA
TPS20611 A
TPS20651 A
TPS20681.5 A
TPS20691.5 A
TPS2042B500mA
TPS2052B500mA
TPS2046B250mA
TPS2056250mA
TPS20621 A
TPS20661 A
TPS20601.5 A
TPS20641.5 A
TPS2080500mA
TPS2081500mA
TPS2082500mA
TPS2090250mA
TPS2091250mA
TPS2092250mA
TPS2043B500mA
TPS2053B500mA
TPS2047B250mA
TPS2057A
250mA
TPS20631 A
TPS20671 A
TPS2044B500mA
TPS2054B500mA
TPS2048A
250mA
TPS2058250mA
TPS2085500mA
TPS2086500mA
TPS2087500mA
TPS2095250mA
TPS2096250mA
TPS2097250mA
TPS201xA
0.2 A to2 A
TPS202x0.2 A to2 A
TPS203x0.2 A to2 A
GENERAL SWITCHCATALOG
33m ,Single
W
80m ,Single
W
80m ,Dual
W
80m ,Dual
W
80m , Triple
W
80m ,Quad
W
80m ,Quad
W
www.ti.com
SLVS514K – JUNE 2010 – REVISED DECEMBER 2008
CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
1
FEATURES
APPLICATIONS
Heavy Capacitive Loads
2
70-m
High-Side MOSFET
Short-Circuit Protections
500-mA Continuous Current
Thermal and Short-Circuit Protection
Accurate Current Limit
(0.75 A min, 1.25 A max)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
Maximum Standby Supply Current:
1-mA (Single, Dual) or 2-mA (Triple, Quad)
Ambient Temperature Range: -40°C to 85°C
UL Recognized, File Number E169910
Additional UL Recognition for TPS2042B and
TPS2052B for Ganged Configuration
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-m
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.
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.
UNLESS
OTHERWISE
NOTED
this
document
contains
Copyright 2010–2008, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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| TPS2047BD | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS2051BDR | 功能描述:電源開關 IC - USB Single 1A Current-Limited RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2051BDRG4 | 功能描述:電源開關 IC - USB Single 1A Current-Limited RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| TPS2051BEVM | 功能描述:交換機 IC 開發工具 TPS2051B Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:USB Power Switches 工具用于評估:MAX4984E 工作電源電壓:2.8 V to 5.5 V |
| TPS2051BEVM-290 | 功能描述:交換機 IC 開發工具 TPS2051BEVM-290 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:USB Power Switches 工具用于評估:MAX4984E 工作電源電壓:2.8 V to 5.5 V |
| TPS2051BEVM-292 | 功能描述:交換機 IC 開發工具 TPS2051B Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:USB Power Switches 工具用于評估:MAX4984E 工作電源電壓:2.8 V to 5.5 V |
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