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参数资料
| 型号： | 795T |
| 厂商： | 意法半导体 |
| 英文描述： | 3V Supervisor with Battery Switchover |
| 中文描述： | 3V的监控与电池切换 |
| 文件页数： | 25/32页 |
| 文件大小： | 304K |
| 代理商： | 795T |
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25/32
STM690/704/795/802/804/805/806
I
LI
Input Leakage Current (MR)
STM704/806 only;
MR = 0V, V
CC
= 3V
0V = V
IN
= V
CC
0V = V
IN
= V
CC
STM804/805/795;
0V = V
IN
= V
CC(6)
V
RST
(max) < V
CC
< 5.5V
V
RST
(max) < V
CC
< 5.5V
V
CC
= V
RST
(max),
I
SINK
= 3.2mA
V
CC
= V
RST
(max),
I
OUT
= 1.6mA, E = 0V
I
OL
= 40μA,
V
CC
= 1.0V, V
BAT
= V
CC
,
T
A
= 0°C to 85°C
I
OL
= 200μA,
V
CC
= 1.2V, V
BAT
= V
CC
20
75
350
μA
Input Leakage Current (PFI)
–25
2
+25
nA
Input Leakage Current (WDI)
–1
+1
μA
I
LO
Output Leakage Current
–1
+1
μA
V
IH
V
IL
Input High Voltage (MR, WDI)
0.7V
CC
V
Input Low Voltage (MR, WDI)
0.3V
CC
V
V
OL
Output Low Voltage (PFO,
RST, RST, Vccsw)
0.3
V
Output Low Voltage (E
CON
)
0.2V
CC
V
V
OL
Output Low Voltage (RST)
0.3
V
0.3
V
V
OH
Output High Voltage (RST,
RST)
(7)
I
SOURCE
= 1mA,
V
CC
= V
RST
(max)
2.4
V
Output High Voltage (E
CON
)
V
CC
= V
RST
(max),
I
OUT
= 1.6mA, E = V
CC
I
SOURCE
= 75μA,
V
CC
= V
RST
(max)
I
SOURCE
= 100μA,
V
CC
= 0V, V
BAT
= 2.8V
I
SOURCE
= 75μA,
V
CC
= 0V, V
BAT
= 2.8V
0.8V
CC
V
Output High Voltage (PFO)
0.8V
CC
V
V
OHB
V
OH
Battery Back-up (Vccsw,
RST)
0.8V
BAT
V
V
OH
Battery Back-up (E
CON
)
0.8V
BAT
V
Power-fail Comparator (NOT available on STM795)
V
PFI
PFI Input Threshold
PFI Falling
(V
CC
< 3.6V)
STM802/
804/806
STM690/
704/805
1.212
1.237
1.262
V
1.187
1.237
1.287
V
PFI Hysteresis
PFI Rising (V
CC
< 3.6V)
10
20
mV
t
PFD
PFI to PFO Propagation
Delay
PFO Output Short to
GND Current
2
μs
I
SC
V
CC
= 3.6V, PFO = 0V
0.1
0.75
2.0
mA
Battery Switchover
V
SO
Battery Back-up
Switchover Voltage
(8,9)
Power-down
V
BAT
> V
SW
V
BAT
< V
SW
V
BAT
> V
SW
V
BAT
< V
SW
V
SW
V
BAT
V
SW
V
BAT
V
V
Power-up
V
V
V
SW
2.4
V
Hysteresis
40
mV
Sym
Alter-
native
Description
Test Condition
(1)
Min
Typ
Max
Unit
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