LM810M3-4.63/NOPB National Semiconductor, LM810M3-4.63/NOPB Datasheet

LM810M3-4.63/NOPB

Manufacturer Part Number

LM810M3-4.63/NOPB

Description

IC MICRO RESET CIRCUIT SOT23-3

Manufacturer

National Semiconductor

Type

Simple Reset/Power-On Resetr

Datasheet

1.LM810M3-4.63NOPB.pdf (5 pages)

Specifications of LM810M3-4.63/NOPB

Package / Case

SOT-23-3, TO-236-3, Micro3™, SSD3, SST3

Mounting Type

Surface Mount

Operating Temperature

-40°C ~ 105°C

Output

Push-Pull, Totem Pole

Reset

Active High

Number Of Voltages Monitored

Reset Timeout

140 ms Minimum

Voltage - Threshold

4.63V

Current, Supply

18 μA

Package Type

SOT-23

Power Dissipation

320 mW

Temperature, Operating, Range

-40 to +105 °C

Voltage, Output, High

4.4 V

Voltage, Output, Low

0.4 V

Voltage, Supply

1.2 to 5.5 V

Monitored Voltage

3 V , 3.3 V , 5 V

Undervoltage Threshold

4.56 V

Overvoltage Threshold

4.7 V

Output Type

Active High

Manual Reset

Not Resettable

Watchdog

No Watchdog

Battery Backup Switching

Power-up Reset Delay (typ)

840 ms

Supply Voltage (max)

5.5 V

Supply Voltage (min)

1 V

Supply Current (typ)

18 uA (Typ)

Maximum Power Dissipation

320 mW

Maximum Operating Temperature

+ 105 C

Minimum Operating Temperature

- 40 C

Power Fail Detection

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

LM810M3-4.63::LM810M3-4.63TR

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LM809/LM810

3-Pin Microprocessor Reset Circuits

General Description

The LM809/810 microprocessor supervisory circuits can be

used to monitor the power supplies in microprocessor and

digital systems. They provide a reset to the microprocessor

during power-up, power-down and brown-out conditions.

The function of the LM809/810 is to monitor the V

voltage, and assert a reset signal whenever this voltage

declines below the factory-programmed reset threshold. The

reset signal remains asserted for 240ms after V

above the threshold. The LM809 has an active-low RESET

output, while the LM810 has an active-high RESET output.

Seven standard reset voltage options are available, suitable

for monitoring 5V, 3.3V, and 3V supply voltages.

With a low supply current of only 15µA, the LM809/810 are

ideal for use in portable equipment. The LM809/LM810 are

available in the 3-pin SOT23 package and in the 6-Lead LLP

package.

Typical Application Circuit

Connection Diagrams

( ) are for LM810

10105702

supply

rises

Features

n Precise monitoring of 3V, 3.3V, and 5V supply voltages

n Superior upgrade to MAX809/810

n Fully specified over temperature

n 140ms min. Power-On Reset pulse width, 240ms typical

n Guaranteed RESET Output valid for V

n Low Supply Current, 15µA typ.

n Power supply transient immunity

Applications

n Microprocessor Systems

n Computers

n Controllers

n Intelligent Instruments

n Portable/Battery-Powered Equipment

n Automotive

Active-low RESET Output (LM809)

Active-high RESET Output (LM810)

See NS package Number LDB06A

10105701

( ) are for LM810

Top View

10105715

≥1V

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LM810M3-4.63/NOPB Summary of contents

Page 1

LM809/LM810 3-Pin Microprocessor Reset Circuits General Description The LM809/810 microprocessor supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions. The function ...

Page 2

... LM809M3X-2.93 S4B LM809M3X-2.63 S3B LM809M3X-2.45 SFB LM810 Supplied as 3000 Package units, tape & reel Top Mark LM810M3X-4.63 SEB LM810M3X-4.38 SDB LM810M3X-4.00 SCB LM810M3X-3.08 SBB LM810M3X-2.93 SAB LM810M3X-2.63 S9B LM809 Supplied as 4500 Package units, tape & reel Top Mark LM809LDX-2.63 S13 FUNCTION Ground reference Active-low output ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications RESET, RESET −0. Input Current, V Pin CC Output Current, RESET, RESET Pin Rate of Rise ESD Rating (Note 2) Electrical Characteristics V = full range −40˚C to +105˚C, unless otherwise noted. Typical values are at T ...

Page 4

Electrical Characteristics V = full range −40˚C to +105˚C, unless otherwise noted. Typical values are 4.63/4.38/4.00 versions 3.3V for 3.08/2.93 versions, and V CC Symbol Parameter RESET Output Voltage Low V OL ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted For Ordering, refer to Ordering Information table For Ordering, refer to Ordering Information table 3-Lead SOT23-3 NS Package Number M03B 6-Lead LLP (NLDBB006) NS Package Number LDB06A 7 ...

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