User guide

APX811/812
4-Pin Microprocessor Supervisor With Manual Reset
APX811/812 Rev. 2 4 of 10 OCTOBER 2009
DS31960 www.diodes.com © Diodes Incorporated
Electrical Characteristics (T
A
= 25ºC)
T
A
= -40 to 85
o
C unless otherwise note. Typical values are at T
A
=+25
o
C.
Symbol Parameter Test Conditions Min Typ. Max Unit
V
CC
V
CC
Range 1.0 5.5 V
I
CC
Supply Current
V
th
+ 0.2V
30 40 µA
2.22 2.25 2.28 V
2.59 2.63 2.67 V
2.89 2.93 2.98 V
3.03 3.08 3.13 V
3.94 4.00 4.06 V
4.31 4.38 4.45 V
V
th
Reset threshold T
A
=25
o
C.
4.56 4.63 4.70 V
t
s
Set-up Time
V
CC
= V
th
to (V
th
– 100mV)
20 µs
V
CC
= V
th
-0.2, I
SINK
= 1.2mA
0.3
V
CC
= V
th
-0.2, I
SINK
= 3.2mA
0.4
V
OL
TRESE Output Voltage Low
(APX811)
V
CC
> 1.0V, I
SINK
= 50uA 0.3
V
V
CC
> V
th
+0.2,
I
SOURCE
= 500uA
0.8V
CC
V
OH
TRESE
Output Voltage-High
(APX811)
V
CC
> V
th
+0.2,
I
SOURCE
= 800uA
V
CC
–1.5
V
V
CC
= V
th
+0.2, I
SINK
= 1.2mA
0.3
V
OL
RESET Output Voltage-Low
(APX812)
V
CC
= V
th
+0.2, I
SINK
= 3.2mA
0.4
V
V
OH
RESET Output Voltage-High
(APX812)
1.8V < V
CC
< V
th
-0.2,
I
SOURCE
= 150uA
0.8 V
CC
V
θ
JA
Thermal Resistance
Junction-to-Ambient
SOT143 (Note 3) 240
o
C/W
θ
JC
T
hermal Resistance
Junction-to-Case
SOT143 (Note 3) 71
o
C/W
Notes: 3. Test condition for SOT143: Device mounted on FR-4 substrate, 1"*1", 2oz, copper, single-sided, PC boards.
Timing requirements (T
A
=25
o
C)
Symbol Parameter Test Conditions Min Typ. Max Unit
t
W
Pulse Width
at
MR
V
CC
> V
th-
+0.2V, V
IL
=0.3
×
V
CC
, V
IH
=0.7
×
V
CC
100 - - ns