TPS2201 Datasheet, PDF (1/23 Pages) Texas Instruments – DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES FOR PARALLEL PCMCIA CONTROLLERS

TPS2201, TPS2201Y
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR PARALLEL PCMCIA CONTROLLERS
SLVS094B – AUGUST 1994 – REVISED AUGUST 1995
• 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) – 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 µA Typ, I_Q = 1 µA
• Low r_DS(on) (160-mΩ V_CC Switch)
• Break-Before-Make Switching
5V
5V
A_VPP_PGM
A_VPP_VCC
A_VCC5
A_VCC3
12V
AVPP
AVCC
AVCC
AVCC
GND
APWR_GOOD
SHDN
3V
DB OR DF PACKAGE
(TOP VIEW)
1
30
2
29
3
28
4
27
5
26
6
25
7
24
8
23
9
22
10
21
11
20
12
19
13
18
14
17
15
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™ 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
Power Supply
12 V
5V
3V
CPU
8
PCMCIA
Controller
VDD
TPS2201
12V
5V
3V
SHDN
AVPP
AVCC
AVCC
AVCC
Control Lines
APWR_GOOD
BPWR_GOOD
OC
BVPP
BVCC
BVCC
BVCC
Vpp1
Vpp2
VCC
VCC
PC
Card A
Vpp1
Vpp2
VCC
VCC
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1995, Texas Instruments Incorporated
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