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參數(shù)資料
| 型號： | TPS2105DG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大小： | 432K |
| 代理商： | TPS2105DG4 |
TPS2104, TPS2105
VAUX POWER-DISTRIBUTION SWITCHES
SLVS235A – SEPTEMBER 1999 – REVISED APRIL 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
D Dual-Input, Single-Output MOSFET Switch
With No Reverse Current Flow (No Parasitic
Diodes)
D IN1 . . . 250-m, 500-mA N-Channel;
18-
A Supply Current
D IN2 . . . 1.3-, 100-mA P-Channel;
0.75-
A Supply Current (VAUX Mode)
D Advanced Switch Control Logic
D CMOS and TTL Compatible Enable Input
D Controlled Rise, Fall, and Transition Times
D 2.7 V to 5.5 V Operating Range
D SOT-23-5 and SOIC-8 Package
D –40°C to 85°C Ambient Temperature Range
D 2-kV Human Body Model, 750-V Charged
Device Model, 200-V Machine-Model
ESD Protection
typical applications
D Notebook and Desktop PCs
D Cell phone, Palmtops, and PDAs
D Battery Management
description
The TPS2104 and TPS2105 are dual-input, single-output power switches designed to provide uninterrupted
output voltage when transitioning between two independent power supplies. Both devices combine one
n-channel (250 m
) and one p-channel (1.3 ) MOSFET with a single output. The p-channel MOSFET (IN2)
is used with auxiliary power supplies that deliver lower current for standby modes. The n-channel MOSFET
(IN1) is used with a main power supply that delivers higher current required for normal operation. Low
on-resistance makes the n-channel the ideal path for higher main supply current when power-supply regulation
and system voltage drops are critical. When using the p-channel MOSFET, quiescent current is reduced to
0.75
A to decrease the demand on the standby power supply. The MOSFETs in the TPS2104 and TPS2105
do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current
when the switch is off.
DBV PACKAGE
(TOP VIEW)
GND
IN2
IN1
OUT
EN
GND
IN2
IN1
OUT
EN
DBV PACKAGE
(TOP VIEW)
TPS2104
TPS2105
NC – No internal connection
1
2
3
4
8
7
6
5
IN2
GND
EN
NC
OUT
NC
IN1
D PACKAGE
(TOP VIEW)
D PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
IN2
GND
EN
NC
OUT
NC
IN1
1
2
3
5
4
1
2
3
5
4
Copyright
2000, Texas Instruments Incorporated
PRODUCTION DATA information is 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.
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.
Figure 1. Typical Dual-Input Single-Output
Application
TPS2104
IN1
IN2
EN
5 V VCC
5 V VAUX
Control Signal
Holdup
Capacitor
LOAD
5 V
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| TPS2105MDBVREP | 功能描述:IC OR CTRLR SRC SELECT SOT23-5 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 類型:源極選擇器開關 FET 類型:N 和 P 溝道 比率 - 輸入:輸出:2:1 內(nèi)部開關:是 電流 - 輸出（最大值）:500mA，100mA，100mA 電流 - 電源:18μA 電壓 - 電源:2.7 V ~ 5.5 V 應用:手持/移動設備 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商器件封裝:SOT-23-5 標準包裝:1 |
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| TPS2110APWG4 | 功能描述:電源開關 IC - 配電 Autoswitching Power Mux RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| TPS2110APWR | 功能描述:電源開關 IC - 配電 Autoswitching Power Mux RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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