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See Note A
See Note A
CS
S1
CS
S7
Control Logic
SHDN
RESET
DATA
CLOCK
LATCH
OC
GND
UVLO
POR
Current Limit
Thermal Limit
S2
S3
S4
S5
S6
3.3 V
5 V
5 V
12 V
AVCC
AVCC
AVPP
See Note B
NOTES: A. Current sense
B. The two 12-V pins must be externally connected.
12 V
See Note B
PIN ASSIGNMENTS
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
TPS2220A
DB OR PWP PACKAGE
(TOP VIEW)
5V
5V
DATA
CLOCK
LATCH
NC
12V
AVPP
AVCC
AVCC
GND
RESET
NC
NC
NC
SHDN
12V
NC
NC
NC
NC
OC
NC
3.3V
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
TPS2226A
DB PACKAGE
(TOP VIEW)
5V
5V
DATA
CLOCK
LATCH
NC
12V
AVPP
AVCC
AVCC
AVCC
GND
NC
RESET
3.3V
5V
NC
NC
NC
NC
SHDN
12V
BVPP
BVCC
BVCC
BVCC
NC
OC
3.3V
3.3V
NC - No internal connection
TPS2220A , TPS2223A
TPS2224A , TPS2226A
SLVS428E – MAY 2002 – REVISED MSRCH 2008
FUNCTIONAL BLOCK DIAGRAM OF TPS2220A
Copyright © 2002 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): TPS2220A TPS2223A TPS2224A TPS2226A