參數(shù)資料
型號(hào): MAX707
廠商: Maxim Integrated Products, Inc.
英文描述: Low-Cost,μP Supervisory Circuits(帶有掉電報(bào)警復(fù)位器,復(fù)位門(mén)限4.65V)
中文描述: 低成本、微處理器監(jiān)控電路
文件頁(yè)數(shù): 8/12頁(yè)
文件大小: 129K
代理商: MAX707
M
Interfac ing to μPs with
Bidirec tional Reset Pins
μPs with bidirectional reset pins, such as the Motorola
68HC11 series, can contend with the MAX705-MAX708
RESET output. If, for example, the RESET output is driven
high and the μP wants to pull it low, indeterminate logic
levels may result. To correct this, connect a 4.7k
resistor between the RESET output and the μP reset I/O,
as in Figure 8. Buffer the RESET output to other system
components.
Low-Cost, μP S upervisory Circ uits
8
_______________________________________________________________________________________
MAX70_
RESET
R2
R1
+5V
V-
V
CC
PFI
GND
MR
PFO
TO
μ
P
100k
100k
2N3904
MR
PFO
+5V
0V
+5V
0V
V
TRIP
0V
V-
Figure 7. Monitoring a Negative Voltage
MAX70_
BUFFERED RESET TOOTHER SYSTEM COMPONENTS
4.7k
V
CC
GND
RESET
V
CC
GND
RESET
μ
P
Figure 8. Interfacing to μPs with Bidirectional Reset I/O
5
1.25
R1
1.25
VTRIP
R2
,VTRIP
0
=
<
MAX70_
RESET
R1
Figure 5. RESET Valid to Ground Circuit
MAX70_
RESET
130k
1%
PARAMETER
MIN
TYP
MAX
UNIT
+12V Reset
Threshold at +25°C
10.67 10.87 11.50
V
1M
1%
+5V
+12V
V
CC
PFI
GND
MR
PFO
TO
μ
P
Figure 6. Monitoring Both +5V and +12V
相關(guān)PDF資料
PDF描述
MAX707 μP Supervisory Circuits(μP監(jiān)控電路)
MAX708 μP Supervisory Circuits(μP監(jiān)控電路)
MAX711 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
MAX710 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
MAX710ESE 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX707/D 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:?P Supervisory Circuits
MAX707C/D 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(lèi)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
MAX707CPA 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(lèi)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
MAX707CPA+ 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(lèi)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
MAX707CSA 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(lèi)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