TL1451A_15 Datasheet, PDF (13/36 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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TL1451A
DUAL PULSEĆWIDTHĆMODULATION CONTROL CIRCUITS
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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
CPE – Protection Enable Capacitance – µF
SCP
15
Vref
16
170 kΩ
Vref
Short-circuit
Protection
Comparator
ERROR AMP 1
ERROR AMP 2
+
1.25 V
–
12 kΩ
CPE
S
R
Protection
Latch
Figure 14
Vref
U.V.L.O.
www.ti.com
13