Datasheet

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