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參數(shù)資料
| 型號(hào)： | MAX6750KA16 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | UP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay |
| 中文描述： | 復(fù)位電路的電容可調(diào)的復(fù)位/看門狗超時(shí)周期 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 187K |
| 代理商： | MAX6750KA16 |
M
μP Reset Circuits with Capacitor-Adjustable
Reset/Watchdog Timeout Delay
_______________________________________________________________________________________
5
V
CC
TO RESET DELAY
vs. TEMPERATURE (V
CC
FALLING)
M
TEMPERATURE (
°
C)
V
C
μ
s
100
75
50
25
0
-25
25.4
25.8
26.2
26.6
27.0
25.0
-50
125
V
CC
FALLING AT 1mV/
μ
s
RESET AND WATCHDOG
TIMEOUT PERIOD vs. V
CC
M
V
CC
(V)
T
5.5
5.0
4.0 4.5
2.5 3.0 3.5
2.0
0.44
0.48
0.52
0.56
0.60
0.40
1.5
6.0
C
SWT
= C
SRT
= 100pF
Typical Operating Characteristics (continued)
(V
CC
= +5V, T
A
= +25
°
C, unless otherwise noted.)
RESET AND WATCHING TIMEOUT
PERIOD vs. V
CC
M
V
CC
(V)
T
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
6.5
7.0
7.5
8.0
8.5
9.0
6.0
1.5
6.0
C
SWT
= C
SRT
= 1500pF
RESET
WATCHDOG
Pin Description
PIN
MAX6746
MAX6747
MAX6748–
MAX6751
MAX6752
MAX6753
NAME
FUNCTION
1
—
—
MR
Manual Reset Input. Pull
MR
low to manually reset the device. Reset
remains asserted for the reset timeout period after
MR
is released.
—
1
—
RESET IN
Reset Input. High-impedance input to the adjustable reset comparator.
Connect RESET IN to the center point of an external resistor-divider to
set the threshold of the externally monitored voltage.
—
—
1
SET0
Logic Input. SET0 selects watchdog window ratio or disables the
watchdog timer. See Table 1.
2
2
2
SWT
Watchdog Timeout Input.
MAX6746
–
MAX6751: Connect a capacitor between SWT and ground to
set the basic watchdog timeout period (t
WD
). Determine the period by
the formula t
WD
= 5.06 x 10
6
x C
SWT
with t
WD
in seconds and C
SWT
in
Farads. Extend the basic watchdog timeout period by using the WDS
input. Connect SWT to ground to disable the watchdog timer function.
MAX6752/MAX6753: Connect a capacitor between SWT and ground to
set the slow watchdog timeout period (t
WD2
). Determine the slow
watchdog period by the formula: t
WD2
= 0.65 x 10
9
x C
SWT
with t
WD2
in
seconds and C
SWT
in
Farads. The fast watchdog timeout period is set
by pinstrapping SET0 and SET1 (Connect SET0 high and SET1 low to
disable the watchdog timer function.) See Table 1.
3
3
3
SRT
Reset Timeout Input. Connect a capacitor from SRT to GND to select
the reset timeout period. Determine the period as follows: t
RP
= 5.06 x
10
6
x C
SRT
with t
RP
in seconds and C
SRT
in
Farads.
4
4
4
GND
Ground
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6750KA16+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6750KA16+T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6750KA16-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6750KA17 | 制造商:Maxim Integrated Products 功能描述:SINGLE/DUAL-VOLT MICROPROC. RESET C - Rail/Tube |
| MAX6750KA17+T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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