ADM811-3TART-REEL7 Analog Devices Inc, ADM811-3TART-REEL7 Datasheet - Page 8

• Manufacturer Part Number: ADM811-3TART-REEL7
• Description: IC SUPERVSR W/RESET 3.08V SOT143
• Manufacturer: Analog Devices Inc
• Type: Simple Reset/Power-On Resetr

Specifications of ADM811-3TART-REEL7

• Rohs Status: RoHS non-compliant
• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 3.08V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-143, SOT-143B, TO-253AA
• Other names: ADM811-3TARTREEL7

ADM811/ADM812
INTERFACING TO OTHER DEVICES
OUTPUT
The ADM811/ADM812 are designed to integrate with as many
devices as possible. One feature of the ADM811/ADM812 is the
reset output, which is directly proportional to V
anteed only while V
to be used with both 3 V and 5 V, or any nominal voltage within
the minimum and maximum specifications for V
BENEFITS OF A VERY ACCURATE RESET
THRESHOLD
Because the ADM811/ADM812 can operate effectively even
when there are large degradations of the supply voltages, the
possibility of a malfunction during a power failure is greatly
reduced. Another advantage of the ADM811/ADM812 is its
very accurate internal voltage reference circuit. Combined,
these benefits produce an exceptionally reliable microprocessor
supervisory circuit.
CC
is greater than 1 V). This enables the part
CC
CC
(this is guar-
.
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ENSURING A VALID RESET/RESET
OUTPUT DOWN TO V
When V
ADM812 no longer sinks current. Therefore, a high impedance
CMOS logic input connected to RESET /RESET can drift to
undetermined logic levels. To eliminate this problem, a 100 kΩ
resistor should be connected from RESET /RESET to ground.
Figure 11. Ensuring a Valid RESET Output Down to V
CC
falls below 0.8 V, the RESET /RESET of the ADM811/
ADM811
GND
V
V
CC
CC
CC
RESET
= 0 V
CC
= 0 V