TPS2202AI

DUAL-SLOT PC CARD POWER-INTERFACE SWITCH

WITH RESET FOR SERIAL PCMCIA CONTROLLER

SLVS123A – SEPTEMBER 1995 – REVISED JUNE 1998

2

POST OFFICE BOX 655303

POST OFFICE BOX 1443

typical PC card power-distribution application

PCMCIA

Controller

12 V

Power Supply

Vpp1

Vpp2

VCC

VCC

PC

Card A

VDD

TPS2202AI

5 V

3.3 V

BPWR_GOOD

OC

Serial Interface

3

Vpp1

Vpp2

VCC

VCC

PC

Card B

12V

5V

3.3V

AVPP

AVCC

AVCC

BVPP

BVCC

BVCC

APWR_GOOD

BVCC

AVCC

Supervisor

RESET

RESET

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

3.3V

15, 16, 17

I

3.3-V VCC input for card power

5V

1, 2, 30

I

5-V VCC input for card power

12V

7, 24

I

12-V Vpp input for card power

AVCC

9, 10, 11

O

Switched output that delivers 3.3 V, 5 V, low or high impedance to card

AVPP

8

O

Switched output that delivers 3.3 V, 5 V, 12 V, low or high impedance to card

APWR_GOOD

13

O

Logic-level power-ready output that stays low as long as AVPP is within limits

BVCC

20, 21, 22

O

Switched output that delivers 3.3 V, 5 V, low or high impedance

BVPP

23

O

Switched output that delivers 3.3 V, 5 V, 12 V, low or high impedance

BPWR_GOOD

19

O

Logic-level power-ready output that remains low as long as BVPP is within limits

CLOCK

4

I

Logic-level clock for serial data word

DATA

3

I

Logic-level serial data word

GND

12

Ground

LATCH

5

I

Logic-level latch for serial data word

NC

26, 27,

28, 29

No internal connection

OC

18

O

Logic-level overcurrent reporting output that goes low when an overcurrent condition exists

RESET

6

I

Logic-level RESET input active high. Do not connect if terminal 14 is used.

RESET

14

I

Logic-level RESET input active low. Do not connect if terminal 6 is used.

VDD

25

I

5-V power to chip