TL1451A
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
TYPICAL CHARACTERISTICS
PROTECTION ENABLE TIME
vs
PROTECTION ENABLE CAPACITANCE
18
15
12
9
6
3
0
0
50
100
150
200
250
C
– Protection Enable Capacitance – µF
PE
SCP
15
V
ref
16
170 kΩ
V
ref
V
ref
Short-circuit
Protection
Comparator
12 kΩ
S
R
C
PE
Protection
Latch
U.V.L.O.
ERROR AMP 1
ERROR AMP 2
1.25 V
+
–
Figure 14
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265