TL1451A
DUAL PULSE WIDTH MODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
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.
TA = 25°C
IO = 40
µA
Zero duty cycle
Maximum duty cycle
1.2
–80
2.3
2.05
1.45
2.25
–145
TEST CONDITIONS
TL1451AC
MIN TYP†
MAX
1
UNIT
µA
µA
V
V
error-amplifier section
PARAMETER
Input offset voltage
Input offset current
Input bias current
Common-mode in ut voltage range
Common mode input
Open-loop voltage amplification
Unity-gain bandwidth
Common-mode rejection ratio
Positive output voltage swing
Negative output voltage swing
Output (sink) current (FEEDBACK)
Output (source) current (FEEDBACK)
† All typical values are at TA = 25°C.
VID = –0.1 V,
VID = 0.1 V,
VO = 1.25 V
VO = 1.25 V
0.5
–45
1.6
–70
60
Vref–0.1
1
TEST CONDITIONS
VO (FEEDBACK) = 1.25 V
VO (FEEDBACK) = 1.25 V
VO (FEEDBACK) = 1.25 V
VCC = 3.6 V to 40 V
RF = 200 kΩ
1.05
to
1.45
70
80
1.5
80
160
TL1451AC
MIN
TYP†
MAX
±6
±100
500
UNIT
mV
nA
nA
V
dB
MHz
dB
V
V
mA
µA
output section
PARAMETER
Collector off-state current
Output saturation voltage
Short-circuit output current
† All typical values are at TA = 25°C.
TEST CONDITIONS
VO = 50 V
IO = 10 mA
VO = 6 V
TL1451AC
MIN TYP†
MAX
10
1.2
90
2
UNIT
µA
V
mA
pwm comparator section
PARAMETER
Input threshold voltage at f = 10 kHz (FEEDBACK)
† All typical values are at TA = 25°C.
TEST CONDITIONS
Zero duty cycle
Maximum duty cycle
1.2
TL1451AC
MIN TYP†
MAX
2.05
1.45
2.25
UNIT
V
total device
PARAMETER
Standby supply current
Average supply current
† All typical values are at TA = 25°C.
TEST CONDITIONS
Off-state
RT = 10 kΩ
TL1451AC
MIN TYP†
MAX
1.3
1.7
1.8
2.4
UNIT
mA
mA
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