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TPS2201YDF Datasheet

  • TPS2201YDF

  • DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES FOR PARALLEL PCMC...

  • 23頁

  • TI

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TPS2201, TPS2201Y
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR PARALLEL PCMCIA CONTROLLERS
SLVS094B 鈥?AUGUST 1994 鈥?REVISED AUGUST 1995
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Fully Integrated V
CC
and V
pp
Switching for
Dual-Slot PC Card Interface
Compatible With Controllers From Cirrus,
Intel, and Texas Instruments
Meets PCMCIA Standards
Internal Charge Pump (No External
Capacitors Required) 鈥?12-V Supply Can Be
Disabled Except for Programming
Short Circuit and Thermal Protection
Space Saving SSOP (DB) Package
Compatible With 3.3-V, 5-V and 12-V PC
Cards
Power Saving I
DD
= 83
碌A(chǔ)
Typ, I
Q
= 1
碌A(chǔ)
Low r
DS(on)
(160-m鈩?V
CC
Switch)
Break-Before-Make Switching
DB OR DF PACKAGE
(TOP VIEW)
5V
5V
A_VPP_PGM
A_VPP_VCC
A_VCC5
A_VCC3
12V
AVPP
AVCC
AVCC
AVCC
GND
APWR_GOOD
SHDN
3V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
5V
B_VPP_PGM
B_VPP_VCC
B_VCC5
B_VCC3
V
DD
12V
BVPP
BVCC
BVCC
BVCC
BPWR_GOOD
OC
3V
3V
description
The TPS2201 PC Card (PCMCIA) power interface switch provides an integrated power-management solution
for two PC Cards. All of the discrete power MOSFETs, a logic section, current limiting, thermal protection, and
power-good reporting for PC Card control are combined on a single integrated circuit (IC), using Texas
Instruments LinBiCMOS鈩?process. The circuit allows the distribution of 3-V, 5-V and/or 12-V card power and
is compatible with most PCMCIA controllers. The current-limiting feature eliminates the need for fuses, which
reduces component count and improves reliability; current-limit reporting can help the user isolate a system fault
to a bad card.
The TPS2201 maximizes battery life by generating its own switch-drive voltage using an internal charge pump.
Therefore, the 12-V supply can be powered down and only brought out of standby when flash memory needs
to be written to or erased. End equipment for the TPS2201 includes notebook computers, desktop computers,
personal digital assistants (PDAs), digital cameras, handiterminals, and bar-code scanners.
typical PC card power distribution application
VDD
Power Supply
12 V
5V
3V
CPU
8
PCMCIA
Controller
12V
5V
3V
SHDN
Control Lines
APWR_GOOD
BPWR_GOOD
OC
TPS2201
AVPP
AVCC
AVCC
AVCC
BVPP
BVCC
BVCC
BVCC
Vpp1
Vpp2
VCC
VCC
Vpp1
Vpp2
VCC
VCC
PC
Card A
PC
Card B
LinBiCMOS is a trademark of 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.
Copyright
漏
1995, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
6鈥?

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