DS1813R-15-U Maxim Integrated Products, DS1813R-15-U Datasheet

DS1813R-15-U

Manufacturer Part Number

DS1813R-15-U

Description

Supervisory Circuits 5V EconoReset w/Pushbutton

Manufacturer

Maxim Integrated Products

Datasheet

1.DS1813R-5T-R.pdf (5 pages)

Specifications of DS1813R-15-U

Number Of Voltages Monitored

Monitored Voltage

0 V to 5.5 V

Undervoltage Threshold

4 V

Overvoltage Threshold

4.24 V

Output Type

Active Low, Open Drain

Manual Reset

Resettable

Watchdog

No Watchdog

Battery Backup Switching

No Backup

Power-up Reset Delay (typ)

300 ms

Supply Voltage (max)

5.5 V

Supply Voltage (min)

0 V

Supply Current (typ)

40 uA

Maximum Operating Temperature

+ 85 C

Mounting Style

SMD/SMT

Package / Case

SOT-23-3L

Minimum Operating Temperature

- 40 C

Power Fail Detection

Yes

Lead Free Status / Rohs Status

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GENERAL DESCRIPTION

The DS1813 EconoReset uses a precision

temperature reference and comparator circuit to

monitor the status of the power supply (V

When an out-of-tolerance condition is detected,

an internal power-fail signal is generated which

forces reset to the active state. When V

to an in-tolerance condition, the reset signal is

kept in the active state for approximately 150ms

to allow the power supply and processor to

stabilize.

The DS1813 also monitors a pushbutton on the

reset output. If the reset line is pulled low, a reset

is generated upon release and will be held in reset

output low for typically 150ms.

FEATURES

Automatically Restarts a Microprocessor

After Power Failure

Monitors Pushbutton for External Override

Maintains Reset for Typically 150ms After

Reduces Need for Discrete Components

Precision Temperature-Compensated Voltage

Reference and Voltage Sensor

Low-Cost TO-92 or Space-Saving Surface-

Mount SOT-23 Packages Available

Efficient Open-Drain Output with Internal

5.5kΩ Pullup Resistor

-40°C to +85°C Operating Temperature

Returns to an In-Tolerance Condition

returns

5V EconoReset with Pushbutton

1 of 5

PIN CONFIGURATIONS

PIN DESCRIPTION

TO-92

TO-92 PACKAGE

Drawings Section

BOTTOM VIEW

SOT-23

On Website

See Mech.

1 2 3

DALLAS

DS1813

Econo

Reset

NAME

GND

RST

SOT-23 PACKAGE

Drawings Section

TOP VIEW

On Website

See Mech.

Active-Low

Reset Output

Power Supply

Ground

FUNCTION

DS1813

REV: 022306

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