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參數資料
| 型號： | MAX815L |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 【1% Accuracy, Low-Power, +3V and +5V レP Supervisory Circuits |
| 中文描述： | 【1％精度，低功耗，3V和5VレP監控電路 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 111K |
| 代理商： | MAX815L |
_______________General Desc ription
The MAX814/MAX815/MAX816 are high-accuracy
microprocessor (μP) supervisory circuits that provide
power-on reset, watchdog, and power-fail functions.
They eliminate manual trimming and improve reliability
in critical applications needing high-accuracy reset
thresholds. The RESET output is guaranteed to be in
the correct state for V
CC
down to 1V. The reset com-
parator is designed to ignore fast transients on V
CC
.
Reset thresholds are available for operation with a vari-
ety of 3V and 5V supply voltages.
A 75μA maximum supply current makes the MAX814/
MAX815/MAX816 ideal for use in portable equipment.
All three devices are available in 8-pin DIP and SO
packages. See the Selector Table below for a review of
features.
_____________________S elec tor Table
________________________Applic ations
Medical Equipment
Controllers
Intelligent Instruments
Critical μP Power Monitoring
Portable/Battery-Powered Equipment
Set-Top Boxes
__________________________________________________________Pin Configurations
____________________________Features
o
±1% Worst-Case Reset Threshold Accuracy
o
4.8V, 4.7V, 4.55V, 3.03V, or Adjustable Reset
Thresholds
o
±1% Low-Line Threshold Accuracy (MAX814)
60mV Above Reset Threshold
o
200ms Reset Time Delay
o
Active-Low RESET Output
Active-High RESET Output (MAX814/MAX816)
o
75μA Max Supply Current
o
Guaranteed RESET Valid to V
CC
= 1V
o
Manual Reset Input
o
±2% Power-Fail Comparator
o
Independent Watchdog with 1.56sec Timeout
(MAX815)
o
Power-Supply Glitch Immunity
o
8-Pin SO and DIP Packages
M
±1% Ac c urac y, Low-Power, +3V and +5V
μP S upervisory Circ uits
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
LOW LINE
GND
PFO
PFI
1
2
8
7
RESET
RESET
V
CC
MR
MAX814
DIP/SO
TOP VIEW
3
4
6
5
WDI
GND
PFO
PFI
1
2
8
7
WDO
RESET
V
CC
MR
MAX815
DIP/SO
3
4
6
5
RESET IN
GND
PFO
PFI
1
2
8
7
RESET
RESET
V
CC
MR
MAX816
DIP/SO
3
4
6
5
19-0412; Rev 0; 6/95
_____________Reset Trip T hresholds
Ordering Information appears at end of data sheet.
FEATURE
RESET Output
RESET Output
Manual Reset
V
CC
Reset Voltage
Power-Fail Monitor
Low-Line Detector
Watchdog Circuit
MAX814
MAX815
MAX816
K, L, N, T
K, L, N, T
Adjustable
MAX814/MAX815
RESET TRIP THRESHOLD
MIN (V)
K
L
N
T
4.75
4.65
4.50
3.00
4.85
4.75
4.60
3.06
MAX816
SUFFIX
MAX (V)
—
Adjustable
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| MAX815N | 【1% Accuracy, Low-Power, +3V and +5V レP Supervisory Circuits |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX815LCPA | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX815LCPA+ | 功能描述:監控電路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX815LCSA | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX815LCSA+ | 功能描述:監控電路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX815LCSA+T | 功能描述:監控電路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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