ꢀꢁ ꢂꢃ ꢄꢂ ꢅ
ꢍ
ꢔ
ꢆ
ꢇ
ꢅ
ꢁ
ꢈ
ꢇ
ꢁ
ꢉ
ꢊ
ꢋ
ꢌ
ꢍ
ꢆ
ꢀ
ꢎ
ꢋ
ꢏ
ꢐ
ꢆ
ꢇ
ꢁ
ꢅꢀ
ꢍ
ꢐ
ꢑ
ꢒ
ꢐ
ꢑ
ꢀ
ꢓ
ꢐ
ꢁ
ꢒ
ꢍꢓ
ꢒꢇ
ꢀꢉ
ꢔ
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
dead-time control section
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
Input bias current (DTC)
1
µA
µA
V
Latch mode (source) current (DTC)
Latched input voltage (DTC)
T
= 25°C
–80
–145
A
I
O
= 40 µA
2.3
Zero duty cycle
2.05
1.45
2.25
Input threshold voltage at f = 10 kHz (DTC)
V
Maximum duty cycle
1.2
†
All typical values are at T = 25°C.
A
error-amplifier section
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
TYP
MIN
MAX
±6
Input offset voltage
Input offset current
Input bias current
V
O
V
O
V
O
(FEEDBACK) = 1.25 V
(FEEDBACK) = 1.25 V
(FEEDBACK) = 1.25 V
mV
nA
nA
±100
500
160
1.05
to
1.45
Common-mode input voltage range
V
= 3.6 V to 40 V
V
CC
Open-loop voltage amplification
Unity-gain bandwidth
R
= 200 kΩ
70
80
1.5
80
dB
MHz
dB
V
F
Common-mode rejection ratio
Positive output voltage swing
Negative output voltage swing
Output (sink) current (FEEDBACK)
Output (source) current (FEEDBACK)
60
V
–0.1
ref
1
V
V
V
= –0.1 V,
V
V
= 1.25 V
= 1.25 V
0.5
–45
1.6
mA
µA
ID
O
= 0.1 V,
–70
ID
O
†
All typical values are at T = 25°C.
A
output section
TL1451AC
PARAMETER
TEST CONDITIONS
= 50 V
UNIT
†
MIN TYP
MAX
10
Collector off-state current
Output saturation voltage
Short-circuit output current
V
O
µA
V
I
O
= 10 mA
1.2
90
2
V
O
= 6 V
mA
†
All typical values are at T = 25°C.
A
pwm comparator section
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
Zero duty cycle
2.05
1.45
2.25
Input threshold voltage at f = 10 kHz (FEEDBACK)
V
Maximum duty cycle
1.2
†
All typical values are at T = 25°C.
A
total device
TL1451AC
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
1.8
Standby supply current
Average supply current
Off-state
1.3
1.7
mA
mA
R
T
= 10 kΩ
2.4
†
All typical values are at T = 25°C.
A
5
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