Datasheet

+
+
+
+
+
R
SENSE
100 mV
675 mV
Fault
Timer
Vcp
30 mA
12dis
10 ms
R
SUM
FLT12
10 mV
-3 mV
S
Q
Q
R
PG12
10 ms
pgat
ogat
ogat
OUT12BLKPASSSET SENMSENP
100 ms
IN12
OUT
vpg
out12
pgat
30 mA
R
SET
EN12
SUM12
CT12
PG3
Q
Pump
Vcp
~25 V
OREN
Optional Oring FET for Redundant Power Feed Systems
60 mA
+
EN12
TPS2458
www.ti.com SLUS916B –FEBRUARY 2009–REVISED MAY 2010
TPS2458 FUNCTIONAL BLOCK DIAGRAMS
12-V Channel Circuitry
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