TPS2202AI Datasheet, PDF (1/23 Pages) Texas Instruments – DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER

TPS2202AI
DUAL-SLOT PC CARD POWER-INTERFACE SWITCH
WITH RESET FOR SERIAL PCMCIA CONTROLLER
SLVS123A – SEPTEMBER 1995 – REVISED JUNE 1998
D Fully Integrated V_CC and V_pp Switching for
Dual-Slot PC Card™ Interface
D P²C™ 3-Lead Serial Interface Compatible
With CardBus™ Controllers
D Meets PC Card Standards
D RESET Allows System Initialization of PC
Cards
D 12-V Supply Can Be Disabled Except
During 12-V Flash Programming
D Short Circuit and Thermal Protection
D Space-Saving 30-Pin SSOP (DB) Package
D Compatible With 3.3-V, 5-V and 12-V PC
Cards
D Power Saving I_DD = 83 µA Typ, I_Q = 1 µA
D Low r_DS(on) (160-mΩ V_CC Switch)
D Break-Before-Make Switching
5V
5V
DATA
CLOCK
LATCH
RESET
12V
AVPP
AVCC
AVCC
AVCC
GND
APWR_GOOD
RESET
3.3V
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
NC
NC
NC
NC
V_DD
12V
BVPP
BVCC
BVCC
BVCC
BPWR_GOOD
OC
3.3V
3.3V
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
means of the P²C (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_CC and V_pp (flash-memory programming voltage) outputs,
which discharges residual card voltage.
End equipment for the TPS2202AI includes notebook computers, desktop computers, personal digital assistants
(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.
LinBiCMOS and P2C are trademarks of Texas Instruments Incorporated.
PC Card and CardBus are trademarks of PCMCIA (Personal Computer Memory Card International Association).
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 © 1998, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443
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