Datasheet

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N = Number of Track pins connected together
# R
TRK
= 100 Ω / N
2.21 kΩ
17.4 kΩ
0.1 µF
50 Ω
Vo
1
= 2.5 V
R
SET1
C
O1
+
C
+
PTH03050W
5
63
4
2
Track
V
I
V
O
GND
Inhibit
1
Adjust
Vo
2
= 1.2 V
C
O2
+
C
+
PTH03060W
7
10
4
5
62
3
9 8
Track
V
I
V
O
GNDInhibit
1
Up Dn Sense
Adjust
SET2
U1
U2
TRK
+3.3 V
C4
V
CC
GND
SENSEMR
CT
RESET
6
5
3
4
1
2
TPS3808G33
C3
4700 pF
U3
#
I1
I2
R
R
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)
PTV03020W
SLTS243A – FEBRUARY 2005 – REVISED OCTOBER 2007
Figure 11. Sequenced Power Up and Power Down Using Auto-Track
Figure 12. Simultaneous Power Up With Auto-Track Figure 13. Simultaneous Power Down With Auto-Track
Control Control
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Product Folder Link(s) :PTV03020W