MAX817LCSA Maxim Integrated Products, MAX817LCSA Datasheet - Page 3

• Manufacturer Part Number: MAX817LCSA
• Description: IC MPU SUPERVISORY CIRCUIT 8SOIC
• Manufacturer: Maxim Integrated Products
• Type: Battery Backup Circuitr

Specifications of MAX817LCSA

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.65V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1785362

ELECTRICAL CHARACTERISTICS (continued)
(V
noted. Typical values are at T
RESET AND WATCHDOG TIMER
POWER-FAIL COMPARATOR (MAX817/MAX819 only)
MANUAL RESET INPUT (MAX819 only)
Reset Threshold
Reset Threshold Hysteresis
Reset Timeout Period
RESET Output Voltage
V
Watchdog Timeout Period
WDI Pulse Width
WDI Input Threshold (Note 4)
WDI Input Current (Note 5)
PFI Input Threshold
PFI Input Hysteresis
PFI Input Current
PFO Output Voltage
PFO Short-Circuit Current
MR Input Threshold
MR Pulse Width
MR Pulse that Would Not Cause
a Reset
MR to Reset Delay
MR Pull-Up Resistance
CC
CC
= +4.75V to +5.5V for MAX81_L, V
to RESET Delay
PARAMETER
+5V Microprocessor Supervisory Circuits
_______________________________________________________________________________________
A
= +25°C.)
SYMBOL
V
V
V
t
V
V
V
t
V
I
V
t
WDI
V
V
WD
RST
PFI
RP
PFT
OH
OH
OL
OL
IH
IH
IL
IL
CC
= +4.5V to +5.5V for MAX81_M, V
MAX81_L
MAX81_M
V
V
MAX81_ _C, V
V
MAX81_ _E, V
V
From V
V
V
WDI = V
WDI = GND, time average
V
V
V
BATT
CC
CC
BATT
IL
CC
PFI
PFI
P FO
= 0.4V, V
> V
< V
= 5V
< 1.20V, I
> 1.30V, I
= 0V
= 0V, I
= 0V, I
RST
RST(MAX),
RST(MIN),
CC
, V
, time average
SINK
IH
SINK
CC
CC
CC
SINK
SOURCE
= 0.8V
CONDITIONS
falling at 10V/ms
= 1.2V, V
= 100µA
I
= 1V, V
I
= 50µA
SINK
SOURCE
= 3.2mA, V
CC
= 40µA, V
= 3.2mA
CC
CC
= 800µA
falling,
falling,
CC
CC
BATT
> 4.50V
> 4.5V
= 2.8V, T
V
V
A
CC
CC
4.50
4.25
1.00
1.20
MIN
140
3.5
-20
-25
0.8
= T
50
45
1
- 1.5
- 1.5
MIN
to T
TYP
4.65
4.40
1.60
1.25
0.01
200
100
120
250
100
120
-15
25
63
4
MAX
, unless otherwise
MAX
4.75
4.50
2.25
1.30
280
160
500
0.4
0.3
0.3
0.8
0.4
2.0
25
85
UNITS
sec
mV
ms
mV
µA
nA
µA
k
µs
ns
µs
ns
ns
V
V
V
V
V
V
3