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參數(shù)資料
| 型號： | MAX6351MTUK-T |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual/Triple-Voltage レP Supervisory Circuits |
| 中文描述： | 雙/三電壓監(jiān)控電路レP |
| 文件頁數(shù)： | 7/8頁 |
| 文件大小： | 107K |
| 代理商： | MAX6351MTUK-T |
Watchdog Input
(MAX6358/MAX6359/MAX6360)
The MAX6358/MAX6359/MAX6360 include a WDI to
provide a reset if the P goes into an infinite loop. After
a reset, the start-up timeout period and the initial time-
out period is nominally 46.4sec to allow the P time to
initialize. After the first transition on the WDI and after
any toggle of the watchdog thereafter, the timeout peri-
od is nominally 2.9sec.
Applications Information
Ensuring a Valid
RESET Output
Down to VCC = 0
In some systems, it is necessary to ensure a valid reset
even if VCC falls to 0. In these applications, use the cir-
cuit shown in Figure 3. Note that this configuration does
not work for the open-drain outputs of the MAX6352/
MAX6355/MAX6358.
Monitoring a Negative Voltage
To monitor a negative supply rail using RSTIN or the
MAX6355/MAX6356/MAX6357, use the circuit shown in
Figure 4. In this configuration, a reset is issued when
the negative supply falls below VINTH.
Interfacing to Ps with
Bidirectional Reset Pins
Microprocessors with bidirectional reset pins will con-
tend with the push-pull outputs of these devices. To
prevent this, connect a 4.7k
resistor between RESET
and the P’s reset I/O port, as shown in Figure 5. Buffer
RESET as shown in the figure if this reset is used by
other components in the system.
MAX6351–MAX6360
Dual/Triple-Voltage
P Supervisory Circuits
_______________________________________________________________________________________
7
Figure 4. Monitoring a Negative Voltage
Figure 3. Ensuring a Valid Reset Low to VCC5 and VCC3 = 0
+3.3V/+3V +5V
GND
100k
RST3
RST5
RST
MAX6351–MAX6360
VCC3
VCC5
VIN
R1
R2
RSTIN
MAX6355
MAX6356
MAX6357
VCC5 ≥ VRSTIN
VINTH = 1.22 -
(VCC5 - 1.22)
R2
R1
R2
VINR1
VCC5 ≥ -
Figure 5. Interfacing to Ps with Bidirectional Reset I/O
BUFFERED RESET TO OTHER SYSTEM COMPONENTS
4.7k
GND
RESET
P
GND
RST3
RST5
RST
MAX6351–MAX6360
VCC3
VCC5
Chip Information
TRANSISTOR COUNT: 855
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX6351SYUK-T | Dual/Triple-Voltage レP Supervisory Circuits |
| MAX6351MRUT-T | Dual/Triple-Voltage レP Supervisory Circuits |
| MAX6353LTUK-T | Dual/Triple-Voltage レP Supervisory Circuits |
| MAX6353MRUK-T | Dual/Triple-Voltage レP Supervisory Circuits |
| MAX6353MTUK-T | Dual/Triple-Voltage レP Supervisory Circuits |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6351MTUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6351MTUT+T | 功能描述:監(jiān)控電路 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 |
| MAX6351MTUT-T | 功能描述:監(jiān)控電路 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 |
| MAX6351RVUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6351RVUT+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V/1.58V 20UA 6PIN SOT-23 - Rail/Tube |
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