TPS2201, TPS2201Y

DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES

FOR PARALLEL PCMCIA CONTROLLERS

SLVS094B – AUGUST 1994 – REVISED AUGUST 1995

Copyright

6–1

POST OFFICE BOX 655303

Dual-Slot PC Card Interface

Intel, and Texas Instruments

Capacitors Required) – 12-V Supply Can Be

Disabled Except for Programming

Cards

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

CPU

PCMCIA

Controller

12 V

Power Supply

Vpp1

Vpp2

VCC

VCC

PC

Card A

VDD

TPS2201

5 V

3 V

SHDN

BPWR_GOOD

OC

Control Lines

8

Vpp1

Vpp2

VCC

VCC

PC

Card B

12V

5V

3V

AVPP

AVCC

AVCC

BVPP

BVCC

BVCC

APWR_GOOD

BVCC

AVCC

LinBiCMOS is a trademark of Texas Instruments Incorporated.

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5V

5V

A_VPP_PGM

A_VPP_VCC

A_VCC5

A_VCC3

12V

AVPP

AVCC

AVCC

AVCC

GND

APWR_GOOD

SHDN

3V

5V

B_VPP_PGM

B_VPP_VCC

B_VCC5

B_VCC3

12V

BVPP

BVCC

BVCC

BVCC

BPWR_GOOD

OC

3V

3V

DB OR DF PACKAGE

(TOP VIEW)

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.