TPS65163
SLVSA28 –OCTOBER 2009
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NEGATIVE CHARGE PUMP OUTPUT VOLTAGE RIPPLE
POWER-UP SEQUENCING
I
= 50 mA
GL
V
LOGIC
V
I
= 3.3 V
LOGIC
V
= 250 mA
GL
LOGIC
V
= -7 V
GL
V
GL
V
S
V
GH
Figure 19.
Figure 20.
RESET SEQUENCING
LEVEL SHIFTER OUTPUT RISE TIME
CHANNELS 1-7
V
V
IN
LOGIC
IN
V
GL
V
V
= 26 V
= -7 V
GH
RESET
GL
OUT
C
t
= 4.7 nF
OUT
= 288 ns
RISE
Figure 21.
Figure 22.
LEVEL SHIFTER OUTPUT RISE TIME
CHANNELS 8-9
LEVEL SHIFTER OUTPUT FALL TIME
CHANNELS 1-7
V
V
= 26 V
= -7 V
GH
IN
GL
C
t
= 4.7 nF
OUT
=216 ns
FALL
IN
OUT
V
V
= 26 V
GH
= -7 V
= 4.7 nF
OUT
GL
C
t
OUT
= 726 ns
RISE
Figure 23.
Figure 24.
12
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