MAX820MMJE Maxim Integrated, MAX820MMJE Datasheet - Page 4

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MAX820MMJE

Manufacturer Part Number
MAX820MMJE
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX792, MAX792L, MAX792M, MAX792R, MAX792S, MAX792T, MAX820, MAX820L, MAX820M, MAX820R, MAX820S, MAX820Tr
Datasheet

Specifications of MAX820MMJE

Number Of Voltages Monitored
1
Monitored Voltage
2.75 V to 5.5 V
Undervoltage Threshold
4.25 V
Overvoltage Threshold
4.5 V
Output Type
Active High, Active Low, Push-Pull
Manual Reset
Resettable
Watchdog
Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
280 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Package / Case
CDIP N
Chip Enable Signals
Yes
Maximum Power Dissipation
800 mW
Minimum Operating Temperature
- 55 C
Power Fail Detection
Yes
Supply Current (typ)
150 uA
Supply Voltage - Min
2.75 V
Microprocessor and Nonvolatile
Memory Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: The minimum operating voltage is 2.75V; however, the MAX792R and MAX820R are guaranteed to operate down to their
Note 2: Pulling RESET IN/INT below 60mV selects internal threshold mode and connects the internal voltage divider to the reset
Note 3: The Chip-Enable Propagation delay is measured from the 50% point at CE IN to the 50% point at CE OUT.
4
OVERVOLTAGE COMPARATOR
OVI Input Threshold
OVI Leakage Current
OVO Output Voltage
OVO Short-Circuit Current
OVI to OVO Delay
CHIP-ENABLE GATING
CE IN Threshold Voltage
CE IN Leakage Current
CE IN to CE OUT Resistance
CE OUT Short-Circuit Current
Chip-Enable Propagation Delay
(Note 3)
Chip-Enable Output Voltage
High (Reset Active)
Reset Active to CE OUT High
MANUAL RESET
MR Minimum Pulse Width
MR to RESET Propagation Delay
MR Threshold Range
MR Pull-Up Current
CC
_______________________________________________________________________________________
= +2.75V to +5.5V, T
preset reset thresholds.
and low-line comparators. External programming mode allows an external resistor divider to set the low-line and reset
thresholds (see Figure 4).
PARAMETER
A
= T
MIN
to T
V
I
I
Output source current, V
V
V
V
V
Disabled mode
Enabled mode
Disabled mode, CE
50Ω source impedance driver,
C
I
I
V
MR = 0V
SINK
SOURCE
OUT
OUT
CC
OD
OD
CC
CC
CC
LOAD
MAX
= 5V or V
= 4.25V
= 2.55V
falling
= 100mV, OVI rising
= 100mV, OVI falling
= -100µA
= 10µA
= 3.2mA
= 50pF
, unless otherwise noted.)
= 1µA
CC
CONDITIONS
= 3V
OUT
= 0V
CC
= 5.5V
V
V
V
V
V
V
V
V
V
V
V
to V
V
CC
CC
IH
IL
IH
IL
CC
CC
CC
CC
CC
CC
CC
= 4.25V
= 2.5V
= 5V
= 3V
= 5V
= 3V
= 5V
= 3V
= 5.5V
0.75 x V
0.75 x V
V
V
V
CC
CC
CC
1.25
0.05
MIN
0.5
1.1
25
5
1
- 0.5
- 1
- 1
CC
CC
±0.005
±0.01
TYP
1.30
150
0.2
1.3
10
13
55
75
15
12
23
6
8
MAX
1.35
±25
150
300
0.4
0.8
0.2
2.5
0.4
1.5
50
±1
10
13
80
UNITS
mA
nA
µA
µA
µA
µs
ns
µs
µs
µs
V
V
V
V
V

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