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TL1451AD Datenblatt(PDF) 8 Page - Texas Instruments

Teilenummer TL1451AD
Bauteilbeschribung  DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
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Hersteller  TI [Texas Instruments]
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TL1451AD Datenblatt(HTML) 8 Page - Texas Instruments

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TL1451A
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
error-amplifier section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
TA = 25°C
±6
Input offset voltage
VO (FEEDBACK) = 1.25 V
TA = 125°C
±10
mV
TA = MIN
±12
TA = 25°C
±100
Input offset current
VO (FEEDBACK) = 1.25 V
TA = 125°C
±100
nA
TA = MIN
±200
TA = 25°C
160
500
Input bias current
VO (FEEDBACK) = 1.25 V
TA = 125°C
100
500
nA
TA = MIN
142
700
1.05
Common-mode input voltage range
VCC = 3.6 V to 40 V
1.05
to
V
gg
CC
1.45
TA = 25°C
70
80
Open-loop voltage amplification
RF = 200 kΩ
TA = 125°C
70
80
dB
TA = MIN
64
80
Unity-gain bandwidth
1.5
MHz
Common-mode rejection ratio
60
80
dB
Positive output voltage swing
2
V
Negative output voltage swing
1
V
TA = 25°C
0.5
1.6
Output (sink) current (FEEDBACK)
VID = – 0.1 V, VO = 1.25 V
TA = 125°C
0.4
1.8
mA
TA = MIN
0.3
1.7
TA = 25°C
–45
–70
Output (source) current (FEEDBACK)
VID = 0.1 V, VO = 1.25 V
TA = 125°C
–25
–50
µA
TA = MIN
–15
–70
† All typical values are at TA = 25°C unless otherwise indicated.
output section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Collector off-state current
VO = 50 V
10
µA
TA = 25°C
1.20
2.0
Output saturation voltage
TA = 125°C
1.60
2.4
V
TA = MIN
1.36
2.2
Short-circuit output current
VO = 6 V
90
mA
† All typical values are at TA = 25°C unless otherwise indicated.
pwm comparator section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Input threshold voltage atf=10kHz (FEEDBACK)
Zero duty cycle
2.05
*2.25
V
Input threshold voltage at f = 10 kHz (FEEDBACK)
Maximum duty cycle
*1.20
1.45
V
*These parameters are not production tested.
† All typical values are at TA = 25°C unless otherwise indicated.


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