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TL1451A_15 Datasheet, PDF (7/36 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS | |||
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TL1451A
DUAL PULSEÄWIDTHÄMODULATION CONTROL CIRCUITS
Ä
SLVS024E â FEBRUARY 1983 â 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)
â 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.
â 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.
â 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 TYPâ 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 kâ¦
CT = 330 pF,
VCC = 3.6 V to 40 V
TA = 25°C
TA = 125°C
TA = MIN
RT = 10 kâ¦
TA = 25°C
TA = 125°C
TA = MIN
TL1451AQ, TL1451AM
MIN TYPâ 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 TYPâ MAX
1
3
â80 â145
2.30
2.22 2.32
2.28 2.40
2.05 *2.25
*1.20 1.45
UNIT
mV
mV
mV
kâ¦
V
UNIT
kHz
UNIT
µA
µA
V
V
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