Voltage monitoring STM6905
10/19 DocID14290 Rev 4
4 Voltage monitoring
Figure 5. MR timing waveforms
Figure 6. Voltage monitoring diagram
RST
MR
t
MLMR
t
REC
t
MLMH
ai13974
ai13975
RST
V
CC
,
VXIN
t
rec
V
RST1/2
,
V
RSTIN
t
RD
DocID14290 Rev 4 11/19
STM6905 Maximum rating
18
5 Maximum rating
Stressing the device above the ratings listed in the “Absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
program and other relevant quality documents.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
T
STG
Storage temperature (V
CC
off) -55 to +150
°C
T
SLD
(1)
1. Reflow at peak temperature of 255 °C to 260 °C for < 30 seconds (total thermal budget not to exceed 180
°C for between 90 to 150 seconds).
Lead solder temperature for 10 seconds 260
V
IO
Input or output voltage -0.3 to V
CC
+0.3
V
V
CC
Supply voltage -0.3 to 7.0
I
O
Output current 20 mA
θ
JA
Thermal resistance (junction to ambient) 146 °C/W
DC and AC parameters STM6905
12/19 DocID14290 Rev 4
6 DC and AC parameters
This section summarizes the operating measurement conditions and the DC and AC
characteristics of the device. Designers should check that the operating conditions in their
circuit match the operating conditions when relying on the quoted parameters.
Table 4. DC and AC characteristics
Symbol
Alter-
native
Description Test condition
(1)
Min Typ Max Unit
V
CC
Operating voltage 0.8 5.5 V
I
CC
V
CC
supply current
V
CC
< 5.5 V 12 16
µA
V
CC
= 3.3 V 11 15
I2IN V2IN supply current V2IN = 3.3 V 3 5
I
LI
Input leakage current
(MR)
(2)
V
IN
= V
CC
or V
SS
-0.5 +0.5
I
LO
(3)
Open drain RST output
leakage current
V
CC
> VRST,
RST not asserted
-0.5 +0.5
V
OL
Output low voltage
(RST, open drain)
V
CC
0.8 V, I
SINK
= 1 µA 0.3
V
V
CC
1.0 V, I
SINK
= 50 µA 0.3
V
CC
1.2 V, I
SINK
= 100 µA 0.3
V
CC
2.7 V, I
SINK
= 1.2 mA 0.3
V
CC
4.5 V, I
SINK
= 3.2 mA 0.4
V
RST1
(4)
V
TH1
V
CC
reset threshold
T (falling)
25°C 3.047 3.078 3.109
-40 °C to 85 °C 3.023 3.133
S (falling)
25 °C 2.925 2.955 2.985
-40 °C to 85 °C 2.902 3.008
P (falling)
25 °C 2.837 2.866 2.895
-40 °C to 85 °C 2.814 2.918
V
RST2
(4)
V
TH2
V2IN reset threshold
Z (falling)
25 °C 2.310 2.333 2.356
-40 °C to 85 °C 2.291 2.375
Y (falling)
25 °C 2.166 2.188 2.210
-40 °C to 85 °C 2.149 2.227
W (falling)
25 °C 1.666 1.683 1.700
-40 °C to 85 °C 1.653 1.713
G (falling)
25 °C 1.099 1.110 1.121
-40 °C to 85 °C 1.090 1.130
F (falling)
25 °C 1.040 1.050 1.061
-40 °C to 85 °C 1.031 1.069

STM6905PWEDS6F

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Supervisory Circuits Low V/ Low Supply Supervisor
Lifecycle:
New from this manufacturer.
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