ADM803/ADM809/ADM810
ABSOLUTE MAXIMUM RATINGS* PIN CONFIGURATIONPIN CONFIGURATION
(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 (push-pull) . . . . . . . . . . . . . . . . . . . 20 mA
RESET
(open drain) . . . . . . . . . . . . . . . . . –0.3 V to +6.0 V
Rate of Rise, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 V/ms
�
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.
Table I. Reset Threshold Options
GND
1
2
TOP VIEW
(Not to Scale)
ADM803/
ADM809/
ADM810
3
V
CC
RESET, RESET
PIN FUNCTION DESCRIPTIONS
Pin No. Mnemonic Function
1 GND
2 RESET (ADM803/
ADM809)
2 RESET (ADM810)
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.
Active High Logic Output.
RESET Model Threshold (V)
RESET remains high while V
CC
is below the reset threshold and
ADM8_L 4.63
remains high for 240 ms (typ)
ADM8_M 4.38
after V
CC
rises above the reset
ADM8_J* 4.00
threshold.
ADM8_T 3.08
ADM8_S 2.93
3 V
CC
Supply Voltage Being
ADM8_R 2.63
Monitored.
ADM8_Z 2.32
*ADM809/ADM810 only.
V
REF
V
REF
V
REF
V
CC
RESET
t1 t1
V
REF
t1 = RESET TIME = 240ms TYP
V
REF
= RESET VOLTAGE THRESHOLD
Figure 2. Power Fail Reset Timing
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.
REV. F –3–