參數(shù)資料
型號(hào): MAX6747KA23+T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 電源管理
英文描述: µP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay
中文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封裝: ROHS COMPLIANT, SOT-23, 8 PIN
文件頁(yè)數(shù): 11/14頁(yè)
文件大?。?/td> 170K
代理商: MAX6747KA23+T
MAX6746–MAX6753
P Reset Circuits with Capacitor-Adjustable
Reset/Watchdog Timeout Delay
6
_______________________________________________________________________________________
Pin Description (continued)
PIN
MAX6746
MAX6747
MAX6748–
MAX6751
MAX6752
MAX6753
NAME
FUNCTION
5
WDS
Watchdog Select Input. WDS selects the watchdog mode. Connect
WDS to ground to select normal mode and the watchdog timeout
period. Connect WDS to VCC to select extended mode, multiplying the
basic timeout period by a factor of 128. A change in the state of WDS
clears the watchdog timer.
5
SET1
Logic Input. SET1 selects the watchdog window ratio or disables the
watchdog timer. See Table 1.
6
WDI
Watchdog Input.
MAX6746–MAX6751: A falling transition must occur on WDI within the
selected watchdog timeout period or a reset pulse occurs. The
watchdog timer clears when a transition occurs on WDI or whenever
RESET is asserted. Connect SWT to ground to disable the watchdog
timer function.
MAX6752/MAX6753: WDI falling transitions within periods shorter than
tWD1 or longer than tWD2 force RESET to assert low for the reset timeout
period. The watchdog timer begins to count after RESET is deasserted.
The watchdog timer clears when a valid transition occurs on WDI or
whenever RESET is asserted. Connect SET0 high and SET1 low to
disable the watchdog timer function. See the Watchdog Timer section.
77
7
RESET
Push/Pull or Open-Drain Reset Output. RESET asserts whenever VCC or
RESET IN drops below the selected reset threshold voltage (VTH or
VRESET IN, respectively) or manual reset is pulled low. RESET remains
low for the reset timeout period after all reset conditions are deasserted,
and then goes high. The watchdog timer triggers a reset pulse (tRP)
whenever a watchdog fault occurs.
88
8
VCC
Supply Voltage. VCC is the power-supply input and the input for fixed
threshold VCC monitor.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6747KA24 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR RESET CIRCUITS WITH - Rail/Tube
MAX6747KA24+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(guò)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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MAX6747KA25 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR RESET CIRCUITS WITH - Rail/Tube
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