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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
short-circuit protection control section
TL1451AQ, TL1451AM
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
750
550
950
230
120
120
120
T
= 25°C
= 125°C
= MIN
650
400
800
140
700
478
880
185
60
A
T
A
Input threshold voltage (SCP)
Standby voltage (SCP)
mV
mV
T
A
T
A
= 25°C
= 125°C
= MIN
T
A
70
Latched input voltage (SCP)
mV
T
A
60
Equivalent timing resistance
170
1.18
kΩ
Comparator threshold voltage (FEEDBACK)
V
†
All typical values are at T = 25°C unless otherwise indicated.
A
oscillator section
TL1451AQ, TL1451AM
PARAMETER
TEST CONDITIONS
UNIT
†
TYP
MIN
MAX
T
= 25°C
= 125°C
= MIN
200
195
193
2%
1%
1%
3%
A
C
R
= 330 pF,
= 10 kΩ
T
T
T
A
Frequency
kHz
T
A
Standard deviation of frequency
Frequency change with voltage
C
= 330 pF,
R
= 10 kΩ
= 25°C
= 125°C
= MIN
T
T
T
A
T
A
V
CC
= 3.6 V to 40 V
T
A
Frequency change with temperature
1.37% *±10%
*These parameters are not production tested.
†
All typical values are at T = 25°C unless otherwise indicated.
A
dead-time control section
TL1451AQ, TL1451AM
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
T
= 25°C
1
3
A
Input bias current (DTC)
µA
µA
T
A
= MIN and 125°C
Latch mode (source) current (DTC)
Latched input voltage (DTC)
–80
2.30
2.22
2.28
–145
T
A
= 25°C
= 125°C
= MIN
T
A
2.32
2.40
2.05
1.45
V
V
T
A
Zero duty cycle
*2.25
Input threshold voltage at f = 10 kHz (DTC)
*These parameters are not production tested.
Maximum duty cycle
*1.20
†
All typical values are at T = 25°C unless otherwise indicated.
A
7
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