TPS2212

SINGLE-SLOT, PARALLEL INTERFACE POWER SWITCH

FOR LOW POWER PC CARD SLOTS

SLVS193A – APRIL 1999 – REVISED JANUARY 2001

16

POST OFFICE BOX 655303

APPLICATION INFORMATION

ESD protection

All TPS2212 inputs and outputs incorporate ESD-protection circuitry designed to withstand a 2-kV human-body-

model discharge as defined in MIL-STD-883C, Method 3015. The VCC and VPP outputs can be exposed to po-

tentially higher discharges from the external environment through the PC Card connector. Bypassing the outputs

with 0.1-

µF capacitors protects the devices from discharges up to 10 kV.

SHDN

VPPD0

VPPD1

VCCD0

VCCD1

OC

Internal

Current Monitor

GND

Thermal

CS

CS

S4

S5

S6

13

12

11

10

17

51

18

52

VCC1

VCC2

Vpp1

Vpp2

Card B

S1

S2

S3

3

4

5

6

9

16

15

14

1

2

8

7

CPU

Controller

3.3 V

3.3 V

5 V

5 V

3.3 V to 12 V

VPPI

TPS2212

See Note A

NOTE A: MOSFET switch S6 has a back-gate diode from the source to the drain. Unused switch inputs should never be grounded.

Figure 25. Internal Switching Matrix, TPS2212 Control Logic