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MAX814TESA+ Datasheet

  • MAX814TESA+

  • Voltage Detector / Microprocessor Supervisor IC; Threshold V...

  • 16頁(yè)

  • Maxim   Maxim

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19-0412; Rev 0; 6/95
鹵1% Accuracy, Low-Power, +3V and +5V
碌P Supervisory Circuits
_______________General Description
The MAX814/MAX815/MAX816 are high-accuracy
microprocessor (碌P) 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 75碌A(chǔ) 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.
____________________________Features
o
鹵1% Worst-Case Reset Threshold Accuracy
o
4.8V, 4.7V, 4.55V, 3.03V, or Adjustable Reset
Thresholds
o
鹵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
75碌A(chǔ) Max Supply Current
o
Guaranteed RESET Valid to V
CC
= 1V
o
Manual Reset Input
o
鹵2% Power-Fail Comparator
o
Independent Watchdog with 1.56sec Timeout
(MAX815)
o
Power-Supply Glitch Immunity
o
8-Pin SO and DIP Packages
MAX814/MAX815/MAX816
_____________________Selector Table
FEATURE
RESET Output
RESET Output
Manual Reset
V
CC
Reset Voltage
Power-Fail Monitor
Low-Line Detector
Watchdog Circuit
K, L, N, T
K, L, N, T
Adjustable
MAX814
MAX815
MAX816
_____________Reset Trip Thresholds
SUFFIX
K
L
N
T
MAX814/MAX815
RESET TRIP THRESHOLD
MIN (V)
MAX (V)
4.75
4.65
4.50
3.00
MAX816
鈥?/div>
Adjustable
Ordering Information appears at end of data sheet.
4.85
4.75
4.60
3.06
________________________Applications
Medical Equipment
Controllers
Intelligent Instruments
Critical 碌P Power Monitoring
Portable/Battery-Powered Equipment
Set-Top Boxes
__________________________________________________________Pin Configurations
TOP VIEW
MR 1
V
CC
2
GND 3
PFI 4
8
RESET
RESET
LOW LINE
PFO
MR 1
V
CC
2
GND 3
PFI 4
8
WDO
RESET
WDI
PFO
MR 1
V
CC
2
GND 3
PFI 4
8
RESET
RESET
RESET IN
PFO
MAX814
7
6
5
MAX815
7
6
5
MAX816
7
6
5
DIP/SO
DIP/SO
DIP/SO
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.

MAX814TESA+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 100

  • 集成電路 (IC)

  • PMIC - 監(jiān)控器

  • -

  • 簡(jiǎn)單復(fù)位/加電復(fù)位

  • 1

  • 推挽式，推挽式

  • 高有效/低有效

  • 最小為 140 ms

  • 3.03V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

MAX814TESA+相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
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    描述
    廠商
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