Datasheet

N = Number of Track pins connected together
# R
TRK
= 100 Ω / N
R
SET
710 Ω
R
SET
5.49 kΩ
R
TRK
#
50 Ω
Vo
1
= 3.3 V
C
O1
+
+
PTH05050W
5
63
4
2
Track
V
I
V
O
GND
Inhibit
1
Adjust
Vo
2
= 1.8 V
C
O2
+
+
PTH05060W
7
10
4
5
62
3
9 8
Track
V
I
V
O
GNDInhibit
1
Up Dn Sense
Adjust
U1
U2
+5 V
V
CC
GND
SENSEMR
CT
RESET
6
5
3
4
1
2
TPS3808G50
C3
4700 pF
U3
C4
0.1 µF
C
I1
C
I2
t − Time − 20 ms/div
V
TRK
(1 V/div)
V
0
1 (1 V/div)
V
0
2 (1 V/div)
t − Time − 200 µs/div
V
TRK
(1 V/div)
V
0
1 (1 V/div)
V
0
2 (1 V/div)
PTH05050W
www.ti.com ............................................................................................................................................................ SLTS213E – MAY 2003 – REVISED MARCH 2009
Figure 10. Sequenced Power Up and Power Down Using Auto-Track
Figure 11. Simultaneous Power Up With Auto-Track Figure 12. Simultaneous Power Down With Auto-Track
Control Control
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