TL1451A-Q1 Datasheet, PDF (5/24 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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TL1451A-Q1
DUAL PULSEĆWIDTHĆMODULATION CONTROL CIRCUITS
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SGLS304A − JUNE 2005 − REVISED JUNE 2008
short-circuit protection control section
PARAMETER
TEST CONDITIONS
Input threshold voltage (SCP)
Standby voltage (SCP)
TA = 25°C
TA = 125°C
TA = MIN
Latched input voltage (SCP)
Equivalent timing resistance
TA = 25°C
TA = 125°C
TA = MIN
Comparator threshold voltage (FEEDBACK)
† _{All typical values are at TA = 25°C unless otherwise indicated.}
oscillator section
TL1451AQ
MIN TYP† MAX
650 700 750
400 478 650
800 880 950
140 185 230
60 120
70 120
60 120
170
1.18
PARAMETER
TEST CONDITIONS
Frequency
Standard deviation of frequency
CT = 330 pF,
RT = 10 kΩ
CT = 330 pF,
Frequency change with voltage
VCC = 3.6 V to 40 V
Frequency change with temperature
† _{All typical values are at TA = 25°C unless otherwise indicated.}
‡ _{These parameters are not production tested.}
TA = 25°C
TA = 125°C
TA = MIN
RT = 10 kΩ
TA = 25°C
TA = 125°C
TA = MIN
TL1451AQ
MIN TYP†
MAX
200
195
193
2%
1%
1%
3%
1.37% ± 10%^}
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)
† _{All typical values are at TA = 25°C unless otherwise indicated.}
‡ _{These parameters are not production tested.}
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
MIN TYP† MAX
1
3
−80 −145
2.3
2.22 2.32
2.28
1.2^}
2.4
2.05 2.25^}
1.45
UNIT
mV
mV
mV
kΩ
V
UNIT
kHz
UNIT
µA
µA
V
V
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