Datasheet


   


SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
8
www.ti.com
error-amplifier section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER TEST CONDITIONS
MIN TYP
†
MAX
UNIT
T
A
= 25°C ±6
Input offset voltage V
O
(FEEDBACK) = 1.25 V
T
A
= 125°C ±10
mV
In ut
offset
voltage
V
O
(FEEDBACK)
1.25
V
T
A
= MIN ±12
mV
T
A
= 25°C ±100
Input offset current V
O
(FEEDBACK) = 1.25 V
T
A
= 125°C ±100
nA
In ut
offset
current
V
O
(FEEDBACK)
1.25
V
T
A
= MIN ±200
nA
T
A
= 25°C 160 500
Input bias current V
O
(FEEDBACK) = 1.25 V
T
A
= 125°C 100 500
nA
In ut
bias
current
V
O
(FEEDBACK)
1.25
V
T
A
= MIN 142 700
nA
1.05
Common-mode input volta
g
e ran
g
e V
CC
= 3.6 V to 40 V
1
.
05
to
V
Common mode
in ut
voltage
range
V
CC
=
3
.
6
V
to
40
V
to
1.45
V
T
A
= 25°C 70 80
Open-loop voltage amplification R
F
= 200 kΩ
T
A
= 125°C 70 80
dB
O en loo
voltage
am lification
R
F
200
kΩ
T
A
= MIN 64 80
dB
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
T
A
= 25°C 0.5 1.6
Output (sink) current (FEEDBACK) V
ID
= –0.1 V, V
O
= 1.25 V
T
A
= 125°C 0.4 1.8
mA
Out ut
(sink)
current
(FEEDBACK)
V
ID
0.1
V,
V
O
1.25
V
T
A
= MIN 0.3 1.7
mA
T
A
= 25°C –45 –70
Output (source) current (FEEDBACK) V
ID
= 0.1 V, V
O
= 1.25 V
T
A
= 125°C –25 –50
µA
() ( )
ID
,
O
T
A
= MIN –15 –70
µ
†
All typical values are at T
A
= 25°C unless otherwise indicated.
output section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER TEST CONDITIONS
MIN TYP
†
MAX
UNIT
Collector off-state current V
O
= 50 V 10 µA
T
A
= 25°C 1.20 2.0
Output saturation voltage
T
A
= 125°C 1.60 2.4
V
Out ut
saturation
voltage
T
A
= MIN
1.36 2.2
V
Short-circuit output current V
O
= 6 V 90 mA
†
All typical values are at T
A
= 25°C unless otherwise indicated.
pwm comparator section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER TEST CONDITIONS
MIN TYP
†
MAX
UNIT
In
p
ut threshold voltage at f 10 kHz (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 T
A
= 25°C unless otherwise indicated.