參數(shù)資料
型號(hào): ADM709LAN
廠商: ANALOG DEVICES INC
元件分類: 電源管理
英文描述: Power Supply Monitor with Reset
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8
封裝: PLASTIC, DIP-8
文件頁(yè)數(shù): 1/4頁(yè)
文件大?。?/td> 224K
代理商: ADM709LAN
FUNCTIONAL BLOCK DIAGRAM
V
CC
RESET
ADM709
V
TH
RESET
GENERATOR
GND
RESET
ADM709
GND
GND
μP
RESET
V
CC
V
CC
Typical Operating Circuit
ORDERING GUIDE
Reset
Threshold
Temperature
Range
Package
Option*
Model
ADM709LAN
ADM709LAR
ADM709MAN
ADM709MAR
ADM709TAN
ADM709TAR
ADM709SAN
ADM709SAR
ADM709RAN
ADM709RAR
4.65 V
4.65 V
4.40 V
4.40 V
3.08 V
3.08 V
2.93 V
2.93 V
2.63 V
2.63 V
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
N-8
SO-8
N-8
SO-8
N-8
SO-8
N-8
SO-8
N-8
SO-8
*N = Plastic DIP; SO = SOIC.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Power Supply Monitor
with Reset
ADM709
Analog Devices, Inc., 1995
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
GENERAL DESCRIPTION
The ADM709 contains a power supply monitor which generates
a system reset during power-up, power-down and brownout
conditions. When V
CC
falls below the reset threshold,
RESET
goes low and holds the
μ
P in reset. On power-up the
RESET
output is held low for 140 ms after V
CC
rises above the thresh-
old. The
RESET
output remains operational with V
CC
as low
as 1 V.
Three supply-voltage threshold levels are available suitable for
+5 V, +3.3 V and for +3 V supply monitoring. The actual reset
voltage threshold is given below.
The ADM709 is available in 8-pin DIP and SOIC packages.
Table I. Reset Threshold
Suffix
Voltage (V)
L
M
T
S
R
4.65
4.40
3.08
2.93
2.63
FEATURES
Precision Supply Voltage Monitor
+5 V, +3.3 V, +3 V Power Supply Monitor
35
m
A Quiescent Current
140 ms (min) Power-On Reset Pulse
Low Cost
8-Pin DIP/SO Packages
Upgrade for MAX709
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Critical
m
P Monitoring
Automotive Systems
Critical
m
P Power Monitoring
相關(guān)PDF資料
PDF描述
ADM709LAR Power Supply Monitor with Reset
ADM709TAN Power Supply Monitor with Reset
ADM709TAR Power Supply Monitor with Reset
ADM800 16 A SPDT MINIATURE POWER RELAY
ADM800LARN Test Spring Probe RoHS Compliant: NA
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