TPS2205

DUAL-SLOT PC CARD POWER-INTERFACE SWITCH

FOR PARALLEL PCMCIA CONTROLLERS

SLVS128D OCTOBER 1995 – REVISED JUNE 1998

21

POST OFFICE BOX 655303

APPLICATION INFORMATION

A_VPP_PGM

A_VPP_VCC

A_VCC5

A_VCC3

B_VPP_PGM

B_VPP_VCC

B_VCC5

B_VCC3

D0–D7

SHDN

Internal

Current Monitor

Controller

Thermal

Vpp1

Vpp2

VCC

VCC

VCC

VCC

Vpp1

22

23

21

20

11

10

8

12V

5V

12V

5V

5V

3.3V

3.3V

3.3V

24

30

7

2

1

17

16

15

14

S6

S5

S4

S3

S2

S1

S12

S11

S10

S9

S8

S7

TPS2205

Card A

Card B

Vpp2

9

GND

12

3

4

5

6

29

28

27

26

51

17

52

18

51

17

52

18

CS

CS

CS

CS

CPU

OC

18

See Note A

See Note A

NOTE A: MOSFET switches S9 and S12 have a back-gate diode from the source to the drain. Unused switch inputs ;should never be grounded.

Figure 31. Internal Switching Matrix