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參數(shù)資料
| 型號(hào)： | MAX6730A |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 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 |
| 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)： | 14/16頁 |
| 文件大小： | 460K |
| 代理商： | MAX6730A |
MAX6730A–MAX6735A
Single-/Dual-/Triple-Voltage P Supervisory
Circuits with Independent Watchdog Output
_______________________________________________________________________________________
7
Pin Description
PIN
MAX6730A
MAX6731A
MAX6732A
MAX6733A
MAX6734A
MAX6735A
NAME
FUNCTION
111
RST
Active-Low Reset Output. The MAX6730A/MAX6732A/MAX6734A provide an
open-drain output. The MAX6731A/MAX6733A/MAX6735A provide a push-pull
output. RST asserts low when any of the following conditions occur: VCC1 or
VCC2 drops below its preset threshold, RSTIN drops below its reset threshold,
or MR is driven low. Open-drain versions require an external pullup resistor.
222
GND
Ground
334
WDO
Active-Low Watchdog Output. The MAX6730A/MAX6732A/MAX6734A provide
an open-drain WDO output. The MAX6731A/MAX6733A/MAX6735A 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 (tWD) or if an
undervoltage-lockout condition exists for VCC1, VCC2, or RSTIN. WDO
deasserts without a timeout period when VCC1, VCC2, 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 VCC1; leave MR open or connect to
VCC1 if unused.
553
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.
668
VCC1
Primary Supply-Voltage Input. VCC1 provides power to the device when it is
greater than VCC2. VCC1 is the input to the primary reset threshold monitor.
—4
6
VCC2
Secondary Supply-Voltage Input. VCC2 provides power to the device when it is
greater than VCC1. VCC2 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 VCC1 or VCC2 if unused.
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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(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 |
| MAX6730AUTLD2+T | 功能描述:監(jiān)控電路 Single uPower Supervisor 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 |
| 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(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 |
| MAX6730AUTLD4+T | 功能描述:監(jiān)控電路 Single-/Dual-/Triple-Voltage N
|
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