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TPS2100DR

更新时间： 2024-11-19 23:37:19
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其他 - ETC 模拟IC光电二极管
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17页 348K
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Analog IC

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TPS2100DR 数据手册

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TPS2100, TPS2101  
POWER-DISTRIBUTION SWITCHES  
V
AUX  
SLVS197D – JUNE 1999 – REVISED JUNE 2000  
features  
typical applications  
Dual-Input, Single-Output MOSFET Switch  
With No Reverse Current Flow (No Parasitic  
Diodes)  
Notebook and Desktop PCs  
Palmtops and PDAs  
IN1 . . . 250-mΩ, 500-mA N-Channel;  
16-µA Max Supply Current  
TPS2100  
IN1  
IN2 . . . 1.3-Ω, 10-mA P-Channel;  
Controller  
(CardBus,  
1394,  
PCI,  
et al.)  
1.5-µA Max Supply Current (V  
Mode)  
AUX  
3.3 V V  
CC  
3.3 V  
Advanced Switch Control Logic  
IN2  
3.3 V V  
AUX  
CMOS- and TTL-Compatible Enable Input  
Controlled Rise, Fall, and Transition Times  
2.7-V to 4 V Operating Range  
EN  
D3 or PME Status  
Control Signal  
Hold-Up  
Capacitor  
SOT-23-5 and SOIC-8 Package  
–40°C to 70°C Ambient Temperature Range  
Figure 1. Typical Dual-Input Single-Output  
Application  
2-kV Human-Body-Model, 750-V CDM,  
200-V Machine-Model Electrostatic-  
Discharge Protection  
description  
The TPS2100 and TPS2101 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 mΩ) and one p-channel (1.3 Ω) 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 µA to decrease the demand on the standby power supply. The MOSFETs in the TPS2100 and TPS2101  
do not have the parasitic diodes, found in discrete MOSFETs, which allow the devices to prevent back-flow  
current when the switch is off.  
TPS2100  
D PACKAGE  
(TOP VIEW)  
(TOP VIEW)  
DBV PACKAGE  
PCI Bus  
V
3.3 V  
AUX  
IN2  
GND  
EN  
OUT  
OUT  
NC  
1
2
3
4
8
7
6
5
IN1  
1
2
3
5
4
EN  
GND  
IN2  
OUT  
NC  
IN1  
VGA  
TPS210x  
D3-STAT  
TPS2101  
V
CC  
D PACKAGE  
(TOP VIEW)  
DBV PACKAGE  
(TOP VIEW)  
PCI12xx / PCI14xx  
CardBus Controller  
IN2  
GND  
EN  
OUT  
OUT  
NC  
1
2
3
4
8
7
6
5
EN  
GND  
IN2  
IN1  
1
2
3
5
4
Figure 2. V  
CardBus Implementation  
AUX  
OUT  
NC  
IN1  
NC – No internal connection  
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.  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
Powered by ICminer.com Electronic-Library Service CopyRight 2003  
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