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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(dú)立的看門狗輸出 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 244K |
| 代理商： | MAX6730 |
M
Single-/Dual-/Triple-Voltage μP Supervisory
Circuits with Independent Watchdog Output
_______________________________________________________________________________________
7
Pin Description
PIN
MAX6730
MAX6731
MAX6732
MAX6733
MAX6734
MAX6735
NAME
FUNCTION
1
1
1
RST
Active-Low Reset Output. The MAX6730/MAX6732/MAX6734 provide an open-
drain output. The MAX6731/MAX6733/MAX6735 provide a push-pull output.
RST
asserts low when any of the following conditions occur: V
CC
1 or V
CC
2 drops below
its preset threshold, RSTIN drops below its reset threshold, or
MR
is driven low.
Open-drain versions require an external pullup resistor.
2
2
2
GND
Ground
3
3
4
WDO
Active-Low Watchdog Output. The MAX6730/MAX6732/MAX6734 provide an open-
drain
WDO
output. The MAX6731/MAX6733/MAX6735 provide a push-pull
WDO
output.
WDO
asserts low when no low-to-high or high-to-low transition occurs on
WDI within the watchdog timeout period (t
WD
) or if an undervoltage lockout
condition exists for V
CC
1, V
CC
2, or RSTIN.
WDO
deasserts without a timeout period
when V
CC
1, V
CC
2, and RSTIN exceed their reset thresholds, or when the manual
reset input is deasserted. Open-drain versions require an external pullup resistor.
4
—
5
MR
Active-Low Manual Reset Input. Drive
MR
low to force a reset.
RST
remains
asserted as long as
MR
is low and for the reset timeout period after
MR
releases
high.
MR
has a 50k
pullup resistor to V
CC
1; leave
MR
open or connect to V
CC
1 if
unused.
5
5
3
WDI
Watchdog Input. If WDI remains high or low for longer than the watchdog timeout
period, the internal watchdog timer expires and the watchdog output asserts low.
The internal watchdog timer clears whenever
RST
asserts or a rising or falling edge
on WDI is detected. The watchdog has an initial watchdog timeout period (35s min)
after each reset event and a short timeout period (1.12s min) after the first valid
WDI transition. Floating WDI does not disable the watchdog timer function.
6
6
8
V
CC
1
Primary Supply Voltage Input. V
CC
1 provides power to the device when it is greater
than V
CC
2. V
CC
1 is the input to the primary reset threshold monitor.
—
4
6
V
CC
2
Secondary Supply Voltage Input. V
CC
2 provides power to the device when it is
greater than V
CC
1. V
CC
2 is the input to the secondary reset threshold monitor.
—
—
7
RSTIN
Undervoltage Reset Comparator Input. RSTIN provides a high-impedance
comparator input for the adjustable reset monitor.
RST
asserts low if the voltage at
RSTIN drops below the 626mV internal reference voltage. Connect a resistive
voltage-divider to RSTIN to monitor voltages higher than 626mV. Connect RSTIN to
V
CC
1 or V
CC
2 if unused.
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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