TL1451A Datasheet, PDF (7/29 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS

TL1451A
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
short-circuit protection control section
PARAMETER
Input threshold voltage (SCP)
Standby voltage (SCP)
Latched input voltage (SCP)
Equivalent timing resistance
Comparator threshold voltage (FEEDBACK)
† _{All typical values are at TA = 25°C unless otherwise indicated.}
oscillator section
PARAMETER
Frequency
Standard deviation of frequency
Frequency change with voltage
Frequency change with temperature
*These parameters are not production tested.
† _{All typical values are at TA = 25°C unless otherwise indicated.}
dead-time control section
PARAMETER
Input bias current (DTC)
Latch mode (source) current (DTC)
Latched input voltage (DTC)
Input threshold voltage at f = 10 kHz (DTC)
*These parameters are not production tested.
† _{All typical values are at TA = 25°C unless otherwise indicated.}
TEST CONDITIONS
TA = 25°C
TA = 125°C
TA = MIN
TA = 25°C
TA = 125°C
TA = MIN
TL1451AQ, TL1451AM
MIN TYP† MAX
650 700 750
400 478 550
800 880 950
140 185 230
60 120
70 120
60 120
170
1.18
TEST CONDITIONS
CT = 330 pF,
RT = 10 kΩ
CT = 330 pF,
VCC = 3.6 V to 40 V
TA = 25°C
TA = 125°C
TA = MIN
RT = 10 kΩ
TA = 25°C
TA = 125°C
TA = MIN
TL1451AQ, TL1451AM
MIN TYP† MAX
200
195
193
2%
1%
1%
3%
1.37% *± 10%
TEST CONDITIONS
TA = 25°C
TA = MIN and 125°C
TA = 25°C
TA = 125°C
TA = MIN
Zero duty cycle
Maximum duty cycle
TL1451AQ, TL1451AM
MIN TYP† MAX
1
3
– 80 –145
2.30
2.22 2.32
2.28 2.40
2.05 *2.25
*1.20 1.45
UNIT
mV
mV
mV
kΩ
V
UNIT
kHz
UNIT
µA
µA
V
V
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