Datasheet

TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS

SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements at R
L
= 1 MΩ, C
L
= 50 pF, T
A
= 25_C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
at V
DD
V
IH
= V
IT
+ 0.2 V, V
IL
= V
IT
− 0.2 V 6
µs
t
w
Pulse width
at MR
V
DD
≥ V
IT
+ 0.2 V, V
IL
= 0.3 × V
DD,
V
IH
= 0.7 × V
DD
1 µs
switching characteristics at R
L
= 1 MΩ, C
L
= 50 pF, T
A
= 25_C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
Delay time
V
DD
≥ V
IT
+ 0.2 V,
MR
= 0.7 × V
DD
,
CT = GND,
See timing diagram
5 10 15
ms
t
d
Delay time
V
DD
≥ V
IT
+ 0.2 V,
MR
= 0.7 × V
DD
,
CT = V
DD
,
See timing diagram
100 200 300
ms
t
PHL
Propa
g
ation (dela
y
) time, hi
g
h-to-low-level output
V
DD
to RESET delay
(TPS3836 TPS3838)
V
IL
= V
IT
− 0.2 V,
V
IH
= V
IT
+ 0.2 V
10
µ
s
t
PHL
Propagation
(delay)
time
,
high to low level
output
(TPS3836, TPS3838)
V
IL
= 1.6 V 50
µs
t
PLH
Pro
p
a
g
ation
(
dela
y)
time, low-to-hi
g
h-level out
p
ut
V
DD
to RESET delay
(TPS3837)
V
IL
= V
IT
− 0.2 V,
V
IH
= V
IT
+ 0.2 V
10
µ
s
t
PLH
Propagation
(delay)
time
,
low to high level
output
(TPS3837)
V
IL
= 1.6 V 50
µs
t
PHL
Propagation (delay) time, high-to-low-level output
MR to RESET delay
(TPS3836, TPS3838)
V
DD
≥ V
IT
+ 0.2 V,
V
IL
= 0.3 × V
DD
,
0.1 µs
t
PLH
Propagation (delay) time, low-to-high-level output
MR to RESET delay
(TPS3837)
V
IL
=
0
.
3
×
V
DD
,
V
IL
= 0.7 × V
DD
0.1 µs
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
I
DD
Supply current vs Supply voltage 1
I
MR
Manual reset current vs Manual reset voltage 2
V
OL
Low-level output voltage vs Low-level output current 3
V
OH
High-level output voltage vs High-level output current 4
Normalized reset threshold voltage vs Free-air temperature 5
Minimum pulse duration at V
DD
vs V
DD
Threshold overdrive 6