DS1811R-10-U Maxim Integrated, DS1811R-10-U Datasheet

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DS1811R-10-U

Manufacturer Part Number
DS1811R-10-U
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
DS1811r
Datasheet

Specifications of DS1811R-10-U

Number Of Voltages Monitored
1
Monitored Voltage
0 V to 5.5 V
Undervoltage Threshold
4.25 V
Overvoltage Threshold
4.49 V
Output Type
Active Low, Open Drain
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
300 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOT-23
Chip Enable Signals
No
Minimum Operating Temperature
- 40 C
Power Fail Detection
Yes
Supply Current (typ)
40 uA
Supply Voltage - Min
0 V
Part # Aliases
90-1811R-U10

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS1811R-10-U+
Manufacturer:
Maxim
Quantity:
10
FEATURES
§ Automatically restarts a microprocessor after
§ Maintains reset for 150 ms after V
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
§ Low-cost TO-92 or space saving SOT-23
§ Efficient open-drain output with internal
§ Operating temperature -40°C to +85°C
DESCRIPTION
The DS1811 EconoReset uses a precision temperature reference and comparator circuit to monitor the
status of the power supply (V
signal is generated which forces reset to the active state. When V
the reset signal is kept in the active state for approximately 150 ms to allow the power supply and
processor to stabilize.
www.maxim-ic.com
power failure
to an in-tolerance condition
reference and voltage sensor
packages available
5.5 kW pull-up resistor
CC
). When an out-of-tolerance condition is detected, an internal power-fail
5V EconoReset with Open Drain Output
CC
returns
1 of 5
PIN ASSIGNMENT
PIN DESCRIPTION
TO-92
1
2
3
SOT-23
1
2
3
TO-92 PACKAGE
Drawings Section
BOTTOM VIEW
On Website
See Mech.
V
GND
V
GND
DALLAS
1 2 3
1 2 3
DS1811
RST
RST
Econo
Reset
CC
CC
CC
returns to an in-tolerance condition,
Active Low Reset Output
Power Supply
Ground
Active Low Reset Output
Power Supply
Ground
SOT-23 PACKAGE
Drawings Section
1
TOP VIEW
On Website
See Mech.
3
2
DS1811
041002

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DS1811R-10-U Summary of contents

Page 1

FEATURES § Automatically restarts a microprocessor after power failure § Maintains reset for 150 ms after in-tolerance condition § Reduces need for discrete components § Precision temperature-compensated voltage reference and voltage sensor § Low-cost TO-92 or ...

Page 2

OPERATION - POWER MONITOR The DS1811 provides the functions 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 ...

Page 3

TIMING DIAGRAM: POWER-UP Figure 3 TIMING DIAGRAM: POWER-DOWN Figure DS1811 ...

Page 4

ABSOLUTE MAXIMUM RATINGS* Voltage on V Pin Relative to Ground CC Voltage on Relative to Ground RST Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any ...

Page 5

NOTES: 1. All voltages are referenced to ground. ³ 2.7 volts. 2. Measured with 1kW external resistor may be required in some applications for proper operation of the microprocessor reset control circuit. 4. Measured with output ...

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