TL1451
TYPICAL CHARACTERISTICS
18
Protection Enable Time, t
pe
(s)
15
12
9
6
3
0
LINEAR INTEGRATED CIRCUIT
Protection Enable Time vs
Protection Enable Capacitance
0
150
250
50
200
100
Protection Enable Capacitance, C
PE
(μF)
SCP
15
V
REF
16
170kΩ
V
REF
V
REF
Short-circuit
Protection
Comparator
ERROR AMP 1
ERROR AMP 2
+
1.25V
-
12kΩ
C
PE
S
R
Protection
Latch
U.V.L.O.
Closed-Loop Gain and Phase Shift vs Frequency
70
60
Closed-Loop Gain (dB)
50
40
30
20
10
0
100
1k
10k
100k
1M
V
CC
= 5V
R
REF
= 150Ω
C
REF
= 470pF
Ta = 25℃
C
X
:
47pF
470pF
4700pF
Closed-Loop Gain
(Left Scale)
Phase Shift
(Right Scale)
0°
-10°
-20°
-30°
-40°
-50°
-60°
-70°
-80°
-90°
Phase Shift
Frequency, f (Hz)
V
REF
39kΩ
39kΩ
C
X
+
-
R
REF
C
REF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
7 of 14
QW-R103-011.D
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