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參數(shù)資料
| 型號(hào)： | STM1403 |
| 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(yè)數(shù)： | 28/35頁(yè) |
| 文件大小： | 356K |
| 代理商： | STM1403 |
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DC and AC parameters
STM1403
28/35
Reset thresholds
V
RST
(9)
Reset threshold
T
V
CC
Falling
3.00
3.075
3.15
V
V
CC
Rising
3.00
3.085
3.17
V
S
V
CC
Falling
2.85
2.925
3.00
V
V
CC
Rising
2.85
2.935
3.02
V
R
V
CC
Falling
2.55
2.625
2.70
V
V
CC
Rising
2.55
2.635
2.72
V
t
rec
RST pulse width
140
200
280
ms
Push-button Reset Input
t
MLMH
t
MR
MR pulse width
100
ns
t
MLRL
t
MRD
MR to RST output delay
60
500
ns
1.
Valid for ambient operating temperature: T
A
= –40 to 85°C; V
CC
= V
RST
(max) to 3.6V; and V
BAT
= 2.8V (except where noted); typical values
are for 3.3V and 25°C.
2.
V
supply current, logic input leakage, push-button reset functionality, PFI functionality, state of RST tested at V
BAT
= 3.6V, and V
CC
= 3.6V.
The state of RST and PFO is tested at V
CC
= V
CC
(min). V
BAT
is voltage measured at the pin.
3.
Tested at V
BAT
= 3.6V, V
CC
= 3.5V and 0V.
4.
Guaranteed by design.
5.
The leakage current measured on the RST, SAL, PFO, and BLD pins are tested with the output not asserted (output high impedance).
6.
When V
BAT
> V
CC
> V
SW
, V
OUT
remains connected to V
CC
until V
CC
drops below V
SW
.
7.
When V
SW
> V
CC
> V
BAT
, V
OUT
remains connected to V
CC
until V
CC
drops below the battery voltage (V
BAT
) – 75mV.
8.
Maximum external capacitive load on V
REF
pin cannot exceed 1nF.
9.
The reset threshold tolerance is wider for V
CC
rising than for V
CC
falling due to the 10mV (typ) hysteresis, which prevents internal oscillation.
Table 6.
DC and AC characteristics (continued)
Sym
Alter-
native
Description
Test condition
(1)
Min
Typ
Max
Unit
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