Datasheet

TL7757, TL7757Y
SUPPLY VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041D – SEPTEMBER 1991 – REVISED AUGUST 1995
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
T
A
†
TL7757M
UNIT
PARAMETER
TEST
CONDITIONS
T
A
†
MIN TYP MAX
UNIT
V
IT
Negative going in
p
ut threshold voltage at V
CC
25°C 4.43 4.55 4.67
V
V
IT–
N
ega
ti
ve-go
i
ng
i
npu
t
th
res
h
o
ld
vo
lt
age a
t
V
CC
Full range 4.35 4.7
V
V
h
‡
Hysteresis at V
CC
25°C 40 50 60
mV
V
hys
‡
H
ys
t
eres
i
s a
t
V
CC
Full range 30 70
m
V
V
OL
Low level out
p
ut voltage
I
OL
=20mA
V
CC
=43V
25°C 0.4 0.8
V
V
OL
L
ow-
l
eve
l
ou
t
pu
t
vo
lt
age
I
OL
=
20
m
A
,
V
CC
=
4
.
3
V
Full range 0.8
V
I
OH
High level out
p
ut current
V
CC
= 7 V, V
OH
= 15 V,
25°C 1
µA
I
OH
Hi
g
h
-
l
eve
l
ou
t
pu
t
curren
t
CC
,
See Figure 1
OH
,
Full range 1
µ
A
V
§
Power u
p
reset voltage
R
L
= 2.2 kΩ,
25°C 0.8 1
V
V
res
§
P
ower-up rese
t
vo
lt
age
L
,
V
CC
slew rate ≤ 5 V/µs
Full range 1.2
V
V
CC
=43V
25°C 1400 2000
I
CC
Supply current
V
CC
=
4
.
3
V
Full range 2500
µA
V
CC
= 5.5 V Full range 40
†
Full range is –55°C to 125°C.
‡
This is the difference between positive-going input threshold voltage, V
IT+
, and negative-going input threshold voltage, V
IT–
.
§
This is the lowest voltage at which RESET
becomes active.
switching characteristics at T
A
= 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
T
A
†
TL7757M
UNIT
PARAMETER
TEST
CONDITIONS
T
A
†
MIN TYP MAX
UNIT
t
PLH
Pro
p
agation delay time low to high level out
p
ut
V
CC
slew rate ≤ 5 V/µs,
25°C 3.4 5*
µs
t
PLH
P
ropaga
ti
on
d
e
l
ay
ti
me,
l
ow-
t
o-
hi
g
h
-
l
eve
l
ou
t
pu
t
CC
µ ,
See Figures 2 and 3
Full range 5*
µs
t
PHL
Pro
p
agation delay time high to low level out
p
ut
See Figures 2 and 3
25°C 2 5*
µs
t
PHL
P
ropaga
ti
on
d
e
l
ay
ti
me,
hi
g
h
-
t
o-
l
ow-
l
eve
l
ou
t
pu
t
S
ee
Fi
gures
2
an
d
3
Full range 5*
µs
t
Rise time
V
CC
slew rate ≤ 5 V/µs,
25°C 0.4 1*
µs
t
r
Ri
se
ti
me
CC
µ ,
See Figures 2 and 3
Full range 1*
µs
t
f
Fall time
See Figures 2 and 3
25°C 0.05 1*
µs
t
f
F
a
ll
ti
me
S
ee
Fi
gures
2
an
d
3
Full range 1
µs
t
(i)
Minimum
p
ulse duration at V
CC
for out
p
ut res
p
onse
25°C 5*
µs
t
w(min)
Mi
n
i
mum pu
l
se
d
ura
ti
on a
t
V
CC
f
or ou
t
pu
t
response
Full range 5*
µs
*On products compliant to MIL-STD-883, Class B, this parameter is not production tested.
†
Full range is –55°C to 125°C.