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參數資料
| 型號： | MAX812_EUS-T |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 4-Pin レP Voltage Monitors with Manual Reset Input |
| 中文描述： | 4引腳レP的電壓監視器，帶有手動復位輸入 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 118K |
| 代理商： | MAX812_EUS-T |
________________General Description
The MAX811/MAX812 are low-power microprocessor
(μP) supervisory circuits used to monitor power sup-
plies in μP and digital systems. They provide excellent
circuit reliability and low cost by eliminating external
components and adjustments when used with 5V-
powered or 3V-powered circuits. The MAX811/MAX812
also provide a debounced manual reset input.
These devices perform a single function: They assert a
reset signal whenever the V
CC
supply voltage falls
below a preset threshold, keeping it asserted for at
least 140ms after V
CC
has risen above the reset thresh-
old. The only difference between the two devices is that
the MAX811 has an active-low RESET output (which is
guaranteed to be in the correct state for V
CC
down to
1V), while the MAX812 has an active-high RESET out-
put. The reset comparator is designed to ignore fast
transients on V
CC
. Reset thresholds are available for
operation with a variety of supply voltages.
Low supply current makes the MAX811/MAX812 ideal
for use in portable equipment. The devices come in a
4-pin SOT143 package.
________________________Applications
Computers
Controllers
Intelligent Instruments
Critical μP and μC Power Monitoring
Portable/Battery-Powered Equipment
____________________________Features
o
Precision Monitoring of 3V, 3.3V, and 5V
Power-Supply Voltages
o
6μA Supply Current
o
140ms Min Power-On Reset Pulse Width;
RESET
Output (MAX811), RESET Output (MAX812)
o
Guaranteed Over Temperature
o
Guaranteed
RESET
Valid to V
CC
= 1V (MAX811)
o
Power-Supply Transient Immunity
o
No External Components
o
4-Pin SOT143 Package
_______________Ordering Information
M
4-Pin μP Voltage Monitors
with Manual Reset Input
________________________________________________________________
Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
1
2
4
3
V
CC
MR
(RESET) RESET
GND
MAX811
MAX812
SOT143
TOP VIEW
( ) ARE FOR MAX812
NOTE: SEE LAST PAGE FOR MARKING INFORMATION.
___________________Pin Configuration
MAX811
MAX812
V
CC
V
CC
RESET
(RESET)
RESET
INPUT
GND
V
CC
GND
μ
P
( ) ARE FOR MAX812
PUSHBUTTON
SWITCH
MR
___________Typical Operating Circuit
19-0411; Rev 3; 3/99
PART
*
MAX811_EUS-T
MAX812_EUS-T
* This part offers a choice of five different reset threshold
voltages. Select the letter corresponding to the desired
nominal reset threshold voltage, and insert it into the blank
to complete the part number.
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
4 SOT143
4 SOT143
RESET THRESHOLD
SUFFIX
L
M
T
S
R
VOLTAGE (V)
4.63
4.38
3.08
2.93
2.63
相關PDF資料 |
PDF描述 |
|---|---|
| MAX812 | 4-Pin μp Voltage Monitors with Manual Reset Input(4管腳μP電壓監控器,低有效復位輸出) |
| MAX814 | Accuracy, Low-Power, +3V and +5V μp Supervisory Circuits(高精度，±1%，低功耗，3V和5VμP監控電路) |
| MAX818 | Microprocessor Supervisory Circuits(5VμP監控電路,斷電警告) |
| MAX819 | Microprocessor Supervisory Circuits(5VμP監控電路,斷電警告) |
| MAX820 | Microprocessor and Non-Volatile Memory Supervisory Circuits |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX812LCUS-T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage Detector |
| MAX812LEUS | 制造商:Maxim Integrated Products 功能描述:4-PIN UP VOLTAGE MONITORS WITH MANU - Rail/Tube |
| MAX812LEUS | 制造商:Maxim Integrated Products 功能描述: |
| MAX812LEUS+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.63V 6UA 4PIN SOT-143 - Rail/Tube |
| MAX812LEUS+T | 功能描述:監控電路 4-Pin uPower Voltage Monitor 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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