MAX793REPE+ Maxim Integrated Products, MAX793REPE+ Datasheet - Page 9
![IC SUPERVISOR MPU 16-DIP](/photos/6/57/65728/175-16-dip_sml.jpg)
MAX793REPE+
Manufacturer Part Number
MAX793REPE+
Description
IC SUPERVISOR MPU 16-DIP
Manufacturer
Maxim Integrated Products
Type
Battery Backup Circuitr
Datasheet
1.MAX795TCSA.pdf
(20 pages)
Specifications of MAX793REPE+
Number Of Voltages Monitored
1
Output
Open Drain, Push-Pull
Reset
Active High/Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
2.625V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Monitored Voltage
3 V, 3.3 V
Output Type
Active High, Active Low, Open Drain
Manual Reset
Resettable
Watchdog
Watchdog
Battery Backup Switching
Backup
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.1 V
Supply Current (typ)
62 uA
Maximum Power Dissipation
842 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
Power Fail Detection
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
brownout conditions. RESET is guaranteed to be a
logic low for 0V < V
greater than 1V. Without a backup battery (V
V
Once V
timer keeps RESET low for the reset timeout period
(t
ance (Figure 2). RESET is an open-drain output, and
requires a pullup resistor to V
4.7kΩ to 1MΩ pullup resistor that provides sufficient
current to assure the proper logic levels to the µP.
Figure 2. Timing Diagram, V
CC
RP
); after this interval, RESET becomes high imped-
= V
V
(MAX793/MAX794)
V
V
(MAX793)
V
(MAX793/MAX794)
V
MAX794: V
V
V
(MAX793/MAX794)
V
(RESET PULLED UP TO V
V
(MAX793/MAX794)
SHOWN FOR V
TYPICAL DELAY TIMES REFLECT A 40mV OVERDRIVE
LOWLINE
CE OUT
BOK
PFO
BATT ON
CC
RESET
CC
RESET
WDO
OUT
exceeds the reset threshold, an internal
), RESET is guaranteed valid for V
RESET IN
CC
_______________________________________________________________________________________
= 3.3V to 0V, V
= V
CC
CC
CC
(V
)
RST IN
CC
< V
3.0V/3.3V Adjustable Microprocessor
BATT
/ V
Falling
RST
RST
= 3.6V, CE IN = GND, PFI = V
V
)
LL
CC
, provided V
V
RST
(Figure 3). Use a
4µs
20µs
20µs
CC
10µs
CC
BATT
BATT
.
≥ 1V.
V
SW
is
=
25µs
25µs
25µs
25µs
25µs
If a brownout condition occurs (V
reset threshold), RESET goes low. Each time RESET is
asserted, it stays low for the reset timeout period. Any
time V
timer restarts.
The watchdog output (WDO) can also be used to initi-
ate a reset. See the Watchdog Output section.
The RESET output is the inverse of the RESET output,
and it can both source and sink current.
V
BATT
Supervisory Circuits
CC
V
BATT
goes below the reset threshold, the internal
CC
dips below the
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