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參數(shù)資料
| 型號： | ADM803 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 復(fù)位半導(dǎo)體 |
| 英文描述： | Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23 |
| 中文描述： | 微處理器監(jiān)控電路3引腳SC70和SOT - 23 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 132K |
| 代理商： | ADM803 |
REV. C
ADM803/ADM809/ADM810
–3–
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
*
(T
A
= 25
°
C, unless otherwise noted.)
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
RESET,
RESET
. . . . . . . . . . . . . . . . . . –0.3 V to V
CC
+ 0.5 V
Input Current
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Output Current
RESET,
RESET
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Rate of Rise, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 V/
μ
s
JA
Thermal Impedance, SC70 . . . . . . . . . . . . . . . . . 146
°
C/W
JA
Thermal Impedance, SOT-23 . . . . . . . . . . . . . . . 270
°
C/W
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300
°
C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215
°
C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
*
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods of time may affect device reliability.
1
2
TOP VIEW
(Not to Scale)
ADM803/
ADM809/
ADM810
GND
3
RESET,
RESET
V
CC
V
CC
RESET
t
1
t
1
V
REF
V
REF
V
REF
V
REF
t
1 =
RESET
TIME = 240ms TYP
V
REF
= RESET VOLTAGE THRESHOLD
Figure 2. Power Fail Reset Timing
Table I. Reset Threshold Options
RESET Model
Threshold (V)
ADM8_L
ADM8_M
ADM8_J
*
ADM8_T
ADM8_S
ADM8_R
ADM8_Z
4.63
4.38
4.00
3.08
2.93
2.63
2.32
*
ADM809/ADM810 only.
PIN FUNCTION DESCRIPTIONS
Pin No.
Mnemonic
Function
1
GND
0 V. Ground reference for all
signals.
Active Low Logic Output.
RESET
remains low while V
CC
is below the reset threshold and
remains low for 240 ms (typ)
after V
CC
rises above the reset
threshold.
2
RESET
(ADM803/
ADM809)
2
RESET (ADM810) Active High Logic Output.
RESET remains high while V
CC
is below the reset threshold and
remains high for 240 ms (typ)
after V
CC
rises above the reset
threshold.
V
CC
Supply Voltage Being Moni-
tored.
3
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADM803/ADM809/ADM810 feature proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions
are recommended to avoid performance degradation or loss of functionality.
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