TL1451
TEST CIRCUIT
S1
C
PE
0.47μF
Test
Input
LINEAR INTEGRATED CIRCUIT
V
CC
= 5V
R
L
4.7kΩ
OUT1
16 15 14 13 12 11 10 9
R
L
4.7kΩ
OUT2
UTC TL1451
1
2
3
4
5
6
7
8
C
T
330pF
R
T
10kΩ
Test
Input
TIMING DIAGRAM
Oscillator Triangle Waveform
Error Amplifier Output
Dead-Time Input Voltage
Short-Circuit Protection
Comparator Input Voltage
PWM Comparator Output Voltage
2.0V
1.6V
1.4V
1.25V
H
L
Dead Time 100%
H
L
0.6V
Output Transistor Collector
Waveform
Protection Enable
Terminal Waveform
Short-Circuit Protection
Comparator Output
Power Supply Voltage
2.8V TYP
0V
Tpe
*
H
L
3.6V
0V
* Protection Enable Time, t
pe
= (0.051
×
10
6
×
C
pe
) in seconds
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 14
QW-R103-011.D
UTC-IC [ UNISONIC TECHNOLOGIES ]
