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參數(shù)資料
| 型號： | MAX6823VUK+T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 |
| 封裝： | LEAD FREE, SOT-23, 5 PIN |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 355K |
| 代理商： | MAX6823VUK+T |
General Description
The MAX6821–MAX6825 are low-voltage microprocessor
(P) supervisory circuits that combine voltage monitor-
ing, watchdog timer, and manual reset input functions in
a 5-pin SOT23 package. Microprocessor supervisory cir-
cuits significantly improve system reliability and accura-
cy compared to separate ICs or discrete components.
These devices assert a reset signal whenever the moni-
tored voltage drops below its preset threshold, keeping it
asserted for a minimum timeout period after VCC rises
above the threshold. In addition, a watchdog timer moni-
tors against code execution errors. A debounced manual
reset is also available. The MAX6821–MAX6825 monitor
voltages from +1.8V to +5.0V. These outputs are guaran-
teed to be in the correct state for VCC down to +1.0V.
Nine preprogrammed reset threshold voltages are
available (see the Threshold Suffix Guide). The
MAX6821, MAX6822, and MAX6823 all have a manual
reset input and a watchdog timer. The MAX6821 has
push-pull RESET, the MAX6822 has open-drain RESET,
and the MAX6823 has push-pull RESET. The MAX6824
has a watchdog timer and both push-pull RESET and
push-pull RESET. The MAX6825 has a manual reset
input and both push-pull RESET and push-pull RESET.
The Selector Guide explains the functions offered in
this series of parts.
________________________Applications
Features
o Monitors +1.8V, +2.5V, +3.0V, +3.3V, +5.0V
Supplies
o 140ms (min) Reset Timeout Delay
o 1.6s Watchdog Timeout Period
(MAX6821/MAX6822/MAX6823/MAX6824)
o Manual Reset Input
(MAX6821/MAX6822/MAX6823/MAX6825)
o Three Reset Output Options
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
o Guaranteed Reset Valid to VCC = +1.0V
o Immune to Short Negative VCC Transients
o No External Components
o Small 5-Pin SOT23 Packages
MAX6821–MAX6825
Low-Voltage SOT23 P Supervisors with
Manual Reset and Watchdog Timer
________________________________________________________________ Maxim Integrated Products
1
GND
WDI
MR
15
VCC
RESET(RESET)
(RESET) MAX6821 ONLY
MAX6821
MAX6822
MAX6823
SOT23-5
TOP VIEW
2
34
Pin Configurations
19-1868; Rev 2; 12/05
Ordering Information
Threshold Suffix Guide
*Insert the desired suffix letter (from the table below) into the blank
to complete the part number
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Note: Bold indicates standard versions. Samples are typically
available for standard versions only. All parts require a 2.5k
minimum order increment. Contact factory for availability.
PART*
TEMP RANGE
PIN-PACKAGE
MAX6821_UK-T
-40
°C to +125°C
5 SOT23-5
MAX6822_UK-T
-40
°C to +125°C
5 SOT23-5
MAX6823_UK-T
-40
°C to +125°C
5 SOT23-5
MAX6824_UK-T
-40
°C to +125°C
5 SOT23-5
MAX6825_UK-T
-40
°C to +125°C
5 SOT23-5
SUFFIX
RESET
THRESHOLD (V)
L
4.63
M
4.38
T
3.08
S
2.93
R
2.63
Z
2.32
Y
2.19
W
1.67
V
1.58
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
Selector Guide appears at end of data sheet.
Set-Top Boxes
Computers and
Controllers
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical P Monitoring
Portable/Battery-
Powered Equipment
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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參數(shù)描述 |
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| MAX6823WUK | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE SOT23 MICROPROCESSOR SU - Rail/Tube |
| MAX6823WUK+T | 功能描述:監(jiān)控電路 Single uPower Supervisor 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 |
| MAX6823WUK-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 |
| MAX6823YUK | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE SOT23 MICROPROCESSOR SU - Rail/Tube |
| MAX6823YUK+ | 制造商:Maxim 功能描述:Maxim MAX6823YUK+, Microprocessor Supervisory Circuit 2.19V Reset Threshold 1.8V/2.5V/3V/3.3V/5V 5-pin SOT23 |
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