Datasheet

TL7770-5, TL7770-12
DUAL POWER-SUPPLY SUPERVISORS
SLVS019F – OCTOBER 1987 – REVISED JULY 1999
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions (unless otherwise noted)
supply supervisor section
PARAMETER
TEST
CONDITIONS
†
TL7770-5C
TL7770-12C
TL7770-5I
UNIT
CONDITIONS
MIN TYP
‡
MAX
V
OH
High level out
p
ut voltage
RESET I
OH
= –15 mA V
CC
–1.5
V
V
OH
High
-
le
v
el
o
u
tp
u
t
v
oltage
SCR DRIVE I
OH
= –20 mA V
CC
–1.5
V
V
OL
Low-level output voltage RESET I
OL
= 15 mA 0.4 V
TL7770-5 (5-V sense, 1VSU) 4.46 4.64
V
IT
Undervoltage input threshold
TL7770-12 (12-V sense, 1VSU)
T
A
= MIN to MAX
10.68 11.12
V
V
IT
–
at VSU (negative-going)
TL7770-5, TL7770-12
(programmable sense, 2VSU)
T
A
=
MIN
to
MAX
1.47 1.53
V
TL7770-5 (5-V sense, 1VSU) 15
V
hys
Hysteresis at VSU
TL7770-12 (12-V sense, 1VSU)
T
A
= MIN to MAX
36
mV
V
h
ys
(V
IT+
– V
IT–
)
TL7770-5, TL7770-12
(programmable sense, 2VSU)
T
A
=
MIN
to
MAX
5
mV
V
T
Overvoltage threshold at VSO TL7770-5, TL7770-12 (VSO) T
A
= MIN to MAX 2.48 2.68 V
I
I
In
p
ut current
RESIN V
I
= 5.5 V or 0.4 V –10
µA
I
I
Inp
u
t
c
u
rrent
VSO V
I
= 2.4 V 0.5 2
µ
A
I
OH
High-level output current RESET V
O
= 18 V 50 µA
I
OL
Low-level output current RESET V
O
= 0 –50 µA
I
OH
Peak output current SCR DRIVE Duration = 1 ms 250 mA
†
For conditions shown as MIN or MAX, use the appropriate value specified in the recommended operating conditions.
‡
Typical values are at V
CC
= 5 V, T
A
= 25°C.
total device
PARAMETER
TEST CONDITIONS
†
TL7770-5C
TL7770-12C
TL7770-5I
UNIT
MIN TYP
‡
MAX
V
res
§
Power-up reset voltage V
CC
= VSU 0.8 1 V
I
CC
Su
pp
ly current
1VSU = 18 V, 2VSU = 2 V,
1RESIN and 2RESIN at V
CC
T
A
= 25°C 5
mA
I
CC
S
u
ppl
y
c
u
rrent
1RESIN
and
2RESIN
at
V
CC
,
1VSO and 2VSO at 0 V
T
A
= MIN to MAX 6.5
mA
†
For conditions shown as MIN or MAX, use the appropriate value specified in the recommended operating conditions.
‡
Typical values are at V
CC
= 5 V, T
A
= 25°C.
§
This is the lowest voltage at which RESET
becomes active.