參數(shù)資料
型號: STM1404
廠商: 意法半導(dǎo)體
英文描述: Security Supervisor with Battery Switchover(帶電池轉(zhuǎn)換功能的安全監(jiān)控器)
中文描述: 安全監(jiān)控與電池切換(帶電池轉(zhuǎn)換功能的安全監(jiān)控器)
文件頁數(shù): 28/36頁
文件大?。?/td> 362K
代理商: STM1404
DC and AC parameters
STM1404
28/36
V
OHB
V
OH
battery back-up
(Vccsw)
I
SOURCE
= 100μA,
0.8V
BAT
V
Pull-up supply voltage
(open drain)
RST, SAL, BLD, PFO
3.6
V
Power-fail comparator
V
PFI
PFI input threshold
PFI falling (V
CC
< 3.6V)
1.212
1.237
1.262
V
PFI hysteresis
PFI rising (V
CC
< 3.6V)
10
20
mV
t
PFD
PFI to PFO
propagation delay
2
μs
Battery switchover
V
SO
Battery back-up
switchover voltage
(6)(7)
Power-
down
V
BAT
> V
SW
V
SW
V
V
BAT
< V
SW
V
BAT
V
Power-up
V
BAT
> V
SW
V
SW
V
V
BAT
< V
SW
V
BAT
V
V
SW
2.4
V
Hysteresis
40
mV
Battery low voltage detect
V
DET
Battery detect
threshold
On power-
up only
M
2.25
2.30
2.34
V
N
2.45
2.50
2.55
V
O
3.14
3.20
3.26
V
Voltage reference (option for STM1404A)
(8)
V
REF
Voltage reference (see
Section : V
REF
,
Reference voltage
output (1.237, typ) on
page 13
)
0°C to 85°C
1.212
1.237
1.262
V
–40° to 0°C
1.200
1.237
1.274
V
I
REF+
Source current
0°C to 85°C
15
25
μA
–40° to 0°C
10
15
μA
I
REF–
Sink current
10
13
μA
V
n
Output voltage noise
f = 100Hz to 100kH
10-100
μV
rm
s
Table 6.
DC and AC characteristics (continued)
Sym
Alter-
native
Description
Test condition
(1)
Min
Typ
Max
Unit
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