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參數(shù)資料
| 型號： | MAX6730 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 8-Channel Relay Driver with Integrated 5V LDO and Zero-Volt Detection 20-PDIP -40 to 125 |
| 中文描述： | 單/雙/三電壓微處理器監(jiān)控電路，帶有獨立的看門狗輸出 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 244K |
| 代理商： | MAX6730 |
Manual Reset Input
Many μP-based products require manual reset capabil-
ity, allowing the operator, a test technician, or external
logic circuitry to initiate a reset. A logic low on
MR
asserts the reset output, clears the watchdog timer,
and deasserts the watchdog output. Reset remains
asserted while
MR
is low and for the reset timeout peri-
od (t
RP
) after
MR
returns high. An internal 50k
pullup
resistor allows
MR
to be left open if unused. Drive
MR
with TTL or CMOS-logic levels or with open-drain/col-
lector outputs. Connect a normally open momentary
switch from
MR
to GND to create a manual reset func-
tion; external debounce circuitry is not required.
Connect a 0.1μF capacitor from
MR
to GND to provide
additional noise immunity when driving
MR
over long
cables or if the device is used in a noisy environment.
Adjustable Input Voltage (RSTIN)
The MAX6734/MAX6735 provide an additional high-
impedance comparator input with a 626mV threshold to
monitor a third supply voltage. To monitor a voltage
higher than 626mV, connect a resistive-divider to the
circuit as shown in Figure 2 to establish an externally
controlled threshold voltage, V
EXT_TH
.
V
= 626mV
EXT_TH
×
+
R
(
)
R
R
1
2
2
M
Single-/Dual-/Triple-Voltage μP Supervisory
Circuits with Independent Watchdog Output
_______________________________________________________________________________________
9
t
RP
t
RP
V
TH
V
CC
(MIN)
V
CC
1,
V
2
RSTIN
RST
WDO
MR
Figure 1.
RST
,
WDO
, and
MR
Timing Diagram
MAX6734
MAX6735
V
EXT_TH
GND
RSTIN
R1
R2
Figure 2. Monitoring a Third Voltage
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6730UTLD1-T | Variable Capacitance Diodes; Surface Mount Type: Y; Package: S-MINI; Number of Pins: 3; Application Scope: VHF/UHF TV tuner |
| MAX6730UTLD2-T | Variable Capacitance Diodes; Surface Mount Type: Y; Package: USC; Number of Pins: 2; Application Scope: CATV tuner |
| MAX6730UTLD3-T | Variable Capacitance Diodes; Surface Mount Type: Y; Package: USC; Number of Pins: 2; Application Scope: VHF/UHF VCO |
| MAX6730UTLD4-T | Variable Capacitance Diodes; Surface Mount Type: Y; Package: ESC; Number of Pins: 2; Application Scope: VHF/UHF TV tuner |
| MAX6730UTLD5-T | Variable Capacitance Diodes; Surface Mount Type: Y; Package: ESC; Number of Pins: 2; Application Scope: VHF/UHF TV tuner |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6730AUTLD1+T | 功能描述:監(jiān)控電路 Single uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 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 |
| MAX6730AUTLD2+T | 功能描述:監(jiān)控電路 Single uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 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 |
| MAX6730AUTLD3+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR PWR SUPPLY 4.625V 6PIN SOT-23 - Cut Tape Product |
| MAX6730AUTLD3+T | 功能描述:監(jiān)控電路 Single uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 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 |
| MAX6730AUTLD4+T | 功能描述:監(jiān)控電路 Single-/Dual-/Triple-Voltage N
|
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