Datasheet

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TPS2220A , TPS2223A

TPS2224A , TPS2226A

SLVS428E – MAY 2002 – REVISED MSRCH 2008

Terminal Functions

TERMINAL

NO. I/O DESCRIPTION

NAME

TPS2220A TPS2223A TPS2224A TPS2226A

3.3V 13 13, 14 13, 14 15, 16, 17 I 3.3-V input for card power and chip power

5V 1, 2 1, 2, 24 1, 2, 24 1, 2, 30 I 5-V input for card power

12-V input for card power (xVPP). The two 12-V pins must be

12V 7, 20 NA 7, 20 7, 24 I

externally connected.

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

AVCC 9, 10 9, 10 9, 10 9, 10, 11 O

card

Switched output that delivers 3.3 V, 5 V, 12 V, ground or high

AVPP 8 8 8 8 O

impedance to card (12 V not applicable to TPS2223A)

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

BVCC – 17, 18 17, 18 20, 21, 22 O

card

Switched output that delivers 3.3 V, 5 V, 12 V, ground or high

BVPP – 19 19 23 O

impedance to card (12 V not applicable for TPS2223A)

GND 11 11 11 12 Ground

Open-drain overcurrent reporting output that goes low when an

OC 15 15 15 18 O

overcurrent condition exists. An external pullup is required.

Hi-Z (open) all switches. Identical function to serial D8. Asynchronous

SHDN 21 21 21 25 I

active-low command, internal pullup

Logic-level RESET input active low. Asynchronous active-low

RESET 12 12 12 14 I

command, internal pullup

CLOCK 4 4 4 4 I Logic-level clock for serial data word

DATA 3 3 3 3 I Logic-level serial data word

LATCH 5 5 5 5 I Logic-level latch for serial data word, internal pulldown

6, 14, 16, 6, 13, 19,

6, 7, 16, 6, 16, 22,

NC 17, 18, 19, 26, 27, 28, No internal connection

20, 22, 23 23

22, 23, 24 29

Product Folder Link(s): TPS2220A TPS2223A TPS2224A TPS2226A