PIN FUNCTION DESCRIPTION
Pin Mnemonic
Function
1 GND
2 RESET
0 V. Ground reference for all
signals.
Active Low Logic Output. RESET
remains low while VCC is below the
reset threshold, and remains low
for 55 ms (typ) after VCC rises
above the reset threshold
3
VCC
Supply voltage being monitored.
PIN CONFIGURATION
GND 1
ADM809-
5S/L
3 VCC
TOP VIEW
RESET 2 (Not to Scale)
ADM809-5S/L
VCC
RESET
VREF
VREF
t1
VREF
t1
VREF
t1 = RESET TIME = 55ms TYP.
VREF = RESET VOLTAGE THRESHOLD
Figure 2. Power Fail Reset Timing
Table I. RESET Threshold Options
Model
RESET
Threshold
ADM809-5LART
ADM809-5SART
4.63 V
2.93 V
Model
ADM809-5LART-REEL
ADM809-5LART-REEL-7
ADM809-5SART-REEL
ADM809-5SART-REEL-7
ADM809-5SCHIPS
Reset
Threshold
4.63 V
4.63 V
2.93 V
2.93 V
2.93 V
ORDERING GUIDE
Temperature
Range
–40°C to +150°C
–40°C to +150°C
–40°C to +150°C
–40°C to +150°C
–40°C to +150°C
Branding
Information
M9L
M9L
M9S
M9S
NA
Quantity
10K
3K
10K
3K
1 Wafer
REV. 0
–3–