TPS2202AI
DUAL-SLOT PC CARD POWER-INTERFACE SWITCH
WITH RESET FOR SERIAL PCMCIA CONTROLLER
SLVS123A – SEPTEMBER 1995 – REVISED JUNE 1998
DB OR DF PACKAGE
Fully Integrated V
Dual-Slot PC Card Interface
and V Switching for
pp
CC
(TOP VIEW)
2
P C 3-Lead Serial Interface Compatible
1
30
5V
5V
DATA
CLOCK
LATCH
RESET
12V
AVPP
AVCC
AVCC
AVCC
5V
With CardBus Controllers
2
29
28
27
26
25
24
23
22
21
20
19
18
17
16
NC
NC
NC
NC
3
Meets PC Card Standards
4
RESET Allows System Initialization of PC
Cards
5
6
V
DD
12-V Supply Can Be Disabled Except
During 12-V Flash Programming
7
12V
8
BVPP
BVCC
BVCC
BVCC
BPWR_GOOD
OC
9
Short Circuit and Thermal Protection
10
11
12
13
14
15
Space-Saving 30-Pin SSOP (DB) Package
Compatible With 3.3-V, 5-V and 12-V PC
Cards
GND
APWR_GOOD
RESET
3.3V
Power Saving I
= 83 µA Typ, I = 1 µA
Q
3.3V
3.3V
DD
Low r
(160-mΩ V
Switch)
DS(on)
CC
Break-Before-Make Switching
NC – No internal connection
description
The TPS2202AI PC Card 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 the Texas
Instruments LinBiCMOS process. The circuit allows the distribution of 3.3-V, 5-V, and/or 12-V card power by
2
means of the P C (PCMCIA Peripheral-Control) Texas Instruments nonproprietary serial interface. 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 specific card.
The TPS2202AI incorporates a reset function, selectable by one of two inputs, to help alleviate system errors.
The reset function enables PC Card initialization concurrent with host platform initialization, allowing a system
reset. Reset is accomplished by grounding the V
which discharges residual card voltage.
and V (flash-memory programming voltage) outputs,
CC
pp
EndequipmentfortheTPS2202AIincludesnotebookcomputers, desktopcomputers, personaldigitalassistants
(PDAs), digital cameras, handiterminals, and bar-code scanners. The TPS2202AI is only available taped and
reeled (either TPS2202AIDFLE or TPS2202AIDBLE).
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
LinBiCMOS and P C are trademarks of Texas Instruments Incorporated.
PC Card and CardBus are trademarks of PCMCIA (Personal Computer Memory Card International Association).
Copyright 1998, 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
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443