ADM805 Analog Devices, ADM805 Datasheet - Page 2

• Manufacturer Part Number: ADM805
• Manufacturer: Analog Devices

Specifications of ADM805

• Batt-backup-flg: Yes
• Product Description: µP Supv w/ Backup Battery Switchover, Watchdog, Power Fail Flag, 4.4V/4.65V Threshold, 250mA Iout
• Reset Threshold (v): 4.4,4.65
• Min Reset Timeout (ms): 140
• Reset Output-stage: Active-High/Push-Pull
• Backup-battery Switch: Yes
• Chip Enable Gating: ---
• Typ Watchdog Timeout (ms): 1600
• Package: DIP,SOIC
• Us Price 1000-4999: n/a

ADM690A/ADM692A/ADM802L/M/ADM805L/M–SPECIFICATIONS
Parameter
V
RESET THRESHOLD
WATCHDOG TIMER
POWER FAIL DETECTOR
NOTES
1
Specifications subject to change without notice.
(V
unless otherwise noted)
Either V
CC
CC
V
Supply Current (Excludes I
Supply Current in Battery Backup Mode
Battery Standby Current
Reset Voltage Threshold
Reset Threshold Hysteresis
Reset Timeout Delay
RESET Output Voltage
RESET Output Voltage
Watchdog Timeout Period
WDI Input Pulse Width
WDI Input Threshold
WDI Input Current
PFI Input Threshold
PFI Input Current
PFO Output Voltage
/V
CC
= 4.75 V to 5.5 V (ADM690A/ADM802L/ADM805L), V
(+ = Discharge, – = Charge)
V
V
Battery Switchover Threshold
Battery Switchover Hysteresis
ADM690A, ADM802L, ADM805L
ADM692A, ADM802M, ADM805M 4.25
ADM802L
ADM802M
Logic Low
Logic High
BATT
OUT
OUT
Operating Voltage Range
CC
or V
Output Voltage
in Battery Backup Mode
OPERATION
BATT
can be 0 V if the other > +2.0 V.
1
OUT
)
Min
1.0
V
V
V
4.5
4.55
4.30
140
V
0.8
V
1.0
50
3.5
–10
1.20
1.225
–25
V
–0.1
CC
CC
BATT
CC
CC
CC
– 0.02
– 0.5
– 1.5
– 1.5
– 1.5
– 0.05 V
CC
= 4.5 V to 5.5 V, (ADM692A/ADM802M/ADM805M), V
Typ
70
0.05
V
V
V
20
–20
40
4.65
4.4
40
200
1.6
1.25
1.25
0.01
CC
CC
CC
BATT
– 0.01
– 0.05
– 0.02
–2–
– 0.002
Max
5.5
100
1.0
4.75
4.5
4.7
4.45
280
0.4
0.3
0.4
2.25
0.8
10
1.30
1.275
+25
0.4
+0.02
Units Test Conditions/Comments
V
V
V
V
V
mV
mV
mV
V
V
V
V
mV
ms
V
V
V
V
V
V
s
ns
V
V
V
V
nA
V
V
A
A
A
A
A
Power Down
T
I
ADM805L/M, I
V
V
5.5 V > V
I
I
I
I
Power Up
T
I
I
I
ADM805L/M, I
WDI = V
WDI = 0 V
ADM690A, ADM692A, ADM805L/M
ADM802L/M
I
I
OUT
OUT
OUT
OUT
SOURCE
SINK
SINK
SOURCE
SOURCE
SINK
CC
A
A
IL
= 25 C, V
= 25 C, V
= 0.4, V
= 0 V, V
= 5 mA
= 50 mA
= 250 mA
= 250 A, V
= 3.2 mA
= 100 A, V
= 3.2 mA
BATT
= 800 A
= 4 A, V
= 800 A
CC
CC
= +2.8 V, T
IH
> V
BATT
CC
CC
= 0.8 (V
SOURCE
SINK
BATT
Falling
Falling
CC
CC
CC
= 2.8 V
< V
= 1 V
= 3.2 mA
= 1.1 V
A
+ 0.2 V
= T
CC
= 800 A
BATT
)
MIN
to T
– 0.2 V
REV. 0
MAX