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ADM1810-10(2003_B) View Datasheet(PDF) - Analog Devices

Part Name
Description
View to exact match
ADM1810-10
(Rev.:2003_B)
ADI
Analog Devices ADI
ADM1810-10 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
ADM1810–ADM1813/ADM1815–ADM1818
VCC
VCC TRIP POINT(MAX)
VCC TRIP POINT
RST
VCC TO RESET
DELAY
VCC TRIP POINT(MIN)
VOL
Figure 1. Power-Down Timing Diagram
VCC TRIP POINT (MIN)
VCC
VCC TRIP POINT (MAX)
VCC TRIP POINT
RESET ACTIVE TIMEOUT
RST
Figure 2. Power-Up Timing Diagram
ADM1813 AND ADM1818
The ADM1813 and ADM1818 are low cost voltage monitoring
devices featuring an open-drain output and optional push-
button reset function.
VCC
ADM1813/
ADM1818
VCC
RST
GND
MICRO-
PROCESSOR
RESET
The ADM1818 range has 2.88 V and 2.55 V (typ) trip point
options that allow the user to monitor 3.3 V and 3 V supplies. For
5 V monitoring requirements, the ADM1813 range has 4.62 V
and 4.35 V (typ) trip point options.
ADM1810, ADM1812, ADM1815, AND ADM1817
The ADM1812 is a 5 V supply monitor with an active high push-
pull output and trip point options of 4.62 V and 4.35 V (typ).
The ADM1810 is similar to the ADM1812, except that the
ADM1810 has an active low push-pull output stage.
The ADM1817 is suitable for monitoring 3.3 V, 3 V, and 2.5 V
supplies, with an active high push-pull output and trip-point
options of 3.06 V, 2.88 V, 2.55 V, 2.31 V, and 2.18 V (typ). The
ADM1815 is similar to the ADM1817, except that the ADM1815
has an active low push-pull output stage.
The ADM1810/ADM1812/ADM1815/ADM1817 can be
connected directly to most microprocessor reset inputs without
the need for external components.
VCC
ADM1810/
ADM1812/
ADM1815/
ADM1817
VCC
RST/RST
GND
MICRO-
PROCESSOR
RESET
Figure 5. ADM1810/ADM1812/ADM1815/ADM1817
Typical Application
ADM1811 AND ADM1816
The ADM1811 is a 5 V supply monitor with an active low open-
drain output and trip point options of 4.62 V and 4.35 V (typ).
The ADM1816 also has an active low open-drain output but is
suitable for monitoring lower voltage supplies of 3.3 V, 3 V,
and 2.5 V.
Figure 3. ADM1813/ADM1818 Typical Application
An optional push-button reset switch can be connected between
RST and ground. Pressing this switch will pull the reset output
low. If the push-button reset button pulls the RST output low for
a period greater than 1 ms, then, when the reset button releases
the RST line to float high, the RST line will stay low for a further
150 ms typical.
PUSH-BUTTON TIME
RESET TIMEOUT
VOLTAGE
INPUT LOW
VOLTAGE
INPUT HIGH
Figure 4. Push-Button Reset Timing Diagram
VCC ADM1811/
ADM1816
VCC
RST
GND
MICRO-
PROCESSOR
RESET
Figure 6. ADM1811/ADM1816 Typical Application
REV. B
–5–
 

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