DS1810R-5+T&R-W Maxim Integrated, DS1810R-5+T&R-W Datasheet - Page 2

• Manufacturer Part Number: DS1810R-5+T&R-W
• Description: Supervisory Circuits 5V EconoReset w/Push Pull Output
• Manufacturer: Maxim Integrated
• Series: DS1810r

Specifications of DS1810R-5+T&R-W

• Rohs: yes
• Part # Aliases: 90-1810R+W05

OPERATION - POWER MONITOR
The DS1810 provides the function of detecting out-of-tolerance power supply conditions and warning a
processor-based system of impending power failure. When V
signal is asserted. On power-up,
reached the selected tolerance. This allows the power supply and microprocessor to stabilize before
is released.
BLOCK DIAGRAM (PUSH-PULL OUTPUT) Figure 1
APPLICATION EXAMPLE Figure 2
OUTPUT VALID CONDITIONS
All versions of the DS1810 can maintain a valid output as long as V
the
volts on an input. To sink current below 1.2 volts, a resistor can be connected from
Figure 3). This arrangement will maintain a valid value on the
volts. During both power-up and -down this arrangement will draw current when
A value of about 100 kV should be adequate to maintain a valid condition.
RST
outputs on the DS1810 use a push-pull structure which can maintain a valid output below 1.2
RST
is kept active for approximately 150 ms after the power supply has
2 of 5
CC
is detected as out-of-tolerance, the
RST
CC
outputs even it V
remains above 1.2 volt. However,
RST
RST
is in the high state.
CC
to Ground (see
approaches 0
DS1810
RST
RST