參數(shù)資料
型號(hào)： MAX6749KA+
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： LEAD FREE, M0-178BA, SOT-23, 8 PIN
文件頁(yè)數(shù)： 8/14頁(yè)
文件大?。?/td> 604K
代理商： MAX6749KA+
MAX6746–MAX6753
P Reset Circuits with Capacitor-Adjustable
Reset/Watchdog Timeout Delay
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +1.2V to +5.5V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CSWT = 1500pF
11.38
15.18
18.98
Fast Watchdog Timeout Period,
SET Ratio = 64,
(MAX6752/MAX6753)
tWD1
CSWT = 100pF
1.01
ms
Fast Watchdog Minimum Period
(MAX6752/MAX6753)
2000
ns
SWT Ramp Current
IRAMP
VSWT = 0 to 1.23V, VCC = 1.6V to 5V
200
250
300
nA
SWT Ramp Threshold
VRAMP
VCC = 1.6V to 5V (VRAMP rising)
1.173
1.235
1.297
V
VCC
≥ 1.0V, ISINK = 50A
0.3
VCC
≥ 2.7V, ISINK = 1.2mA
0.3
RESET Output-Voltage LOW
Open-Drain, Push-Pull
(Asserted)
VOL
VCC
≥ 4.5V, ISINK = 3.2mA
0.4
V
VCC
≥ 1.8V, ISOURCE = 200A
0.8 x VCC
VCC
≥ 2.25V, ISOURCE = 500A
0.8 x VCC
RESET Output-Voltage HIGH,
Push-Pull (Not Asserted)
VOH
VCC
≥ 4.5V, ISOURCE = 800A
0.8 x VCC
V
RESET Output Leakage Current,
Open Drain
ILKG
VCC > VTH, reset not asserted,
VRESET = 5.5V
1.0
A
DIGITAL INPUTS (
MR, SET0, SET1, WDI, WDS)
VIL
0.8
VIH
VCC
≥ 4.0V
2.4
VIL
VCC < 4.0V
0.3 x VCC
Input Logic Levels
VIH
0.7 x VCC
V
MR Minimum Pulse Width
1s
MR Glitch Rejection
100
ns
MR to RESET Delay
200
ns
MR Pullup Resistance
Pullup to VCC
12
20
28
k
WDI Minimum Pulse Width
300
ns
RESET IN
RESET IN Threshold
VRESET IN
TA = -40°C to +125°C
1.216
1.235
1.254
V
RESET IN Leakage Current
IRESET IN
-50
±1
+50
nA
RESET IN to
RESET Delay
RESET IN falling at 1mV/s
20
s
Note 1: Production testing done at TA = +25°C. Over temperature limits are guaranteed by design.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6749KA+ 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.2UA 8PIN SOT-23 - Rail/Tube
MAX6749KA+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(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(kāi)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
MAX6749KA-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(kāi)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
MAX674AK/D DIE 制造商:Maxim Integrated Products 功能描述:
MAX674CPA 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
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