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Maxim > Products > Supervisors, Voltage Monitors, Sequencers > MAX803L, MAX803M, MAX803R, ...

MAX803L, MAX803M, MAX803R, MAX803S, MAX803T, MAX803Z, MAX809J, MAX809L, MAX809M, MAX809R, MAX809S, MAX809T, MAX809Z, MAX810L, MAX810M, MAX810R, MAX810S, MAX810T, MAX810Z

3-Pin Microprocessor Reset Circuits

Industry's-First 3-Pin SC70 Reset ICs

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.

These circuits perform a single function: they assert a reset signal whenever the V_CC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after V_CC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.

The MAX803 has an open-drain output stage, while the MAX809/MAX810 have push-pull outputs. The MAX803's open-drain active-low RESET output requires a pullup resistor that can be connected to a voltage higher than V_CC. The MAX803/MAX809 have an active-low RESET output, while the MAX810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on V_CC, and the outputs are guaranteed to be in the correct logic state for V_CC down to 1V.

Low supply current makes the MAX803/MAX809/MAX810 ideal for use in portable equipment. The MAX803 is available in a 3-pin SC70 package, and the MAX809/MAX810 are available in 3-pin SC70 or SOT23 packages.

Data Sheet

Download	Rev 7	(PDF, 144kB)
E-Mail

Key Features

Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations
- Open-Drain active-low RESET Output (MAX803)
- Push-Pull active-low RESET Output (MAX809)
- Push-Pull RESET Output (MAX810)
140ms min Power-On Reset Pulse Width
12µA Supply Current
Guaranteed Reset Valid to V_CC= +1V
Power Supply Transient Immunity
No External Components
3-Pin SC70 and SOT23 Packages

Applications/Uses

Automotive Electronics
Computers: Desktop, Workstation, Server
Controllers
Critical µP and µC Power Monitoring
Intelligent Instruments
Portable Battery-Powered Equipment

Key Specifications:

Supervisors (1 Monitored Voltage)

Part Number

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Reset Thresh. Accur.
(%)

I_CC
(µA)

Budgetary Price

min

@ +25°C

max

See Notes

MAX803

1.8 to 2.5

2.5 to 3.3

3.3 to 5.5

Active Low

Open Drain

85ms to 300ms

No Watchdog

1.5

$0.99 @1k

MAX809

Active Low

Push-Pull

$0.99 @1k

MAX810

Active High

Push-Pull

$0.99 @1k

See All Supervisors (1 Monitored Voltage) (274)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

MAX803L, MAX803M, MAX803R, MAX803S, MAX803T, MAX803Z, MAX809, MAX809J, MAX809L, MAX809M, MAX809R, MAX809S, MAX809T, MAX809Z, MAX810, MAX810L, MAX810M, MAX810R, MAX810S, MAX810T, MAX810Z: Typical Operating Circuit

Typical Operating Circuit

Application Notes

Application Note 254		Switch-Mode Converter Starts With Full Load Connected
Tutorial 279		Supervisory Circuits Keep Your Microprocessor Under Control
Application Note 655		Supervisor ICs Monitor Battery-Powered Equipment
Tutorial 720		Keep the Product Working—Microprocessor Supervisors Offer Big Insurance in Small Packages
Tutorial 1133		Multiple Voltage Systems Need Supply-Voltage Sequencing
Reference Design 2081		Digitally Controlled Sine-Wave Generator
Reference Design 4320		Reference Design for a Class D, 2.1-Channel, Audio Amplifier for an MP3 Docking Station
Application Note 5040		Voltage Monitoring in Complex Systems

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report:	MAX803L.pdf MAX803M.pdf MAX803R.pdf MAX803S.pdf MAX803T.pdf MAX809L.pdf AEC-MAX809MEUR_A.pdf MAX809MEUR.pdf MAX809R.pdf MAX809S.pdf MAX809T.pdf MAX809J.pdf MAX810L.pdf MAX809.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

MAX803 IBIS Model

MAX803 PSPICE Macromodel

MAX809 IBIS Model

MAX809 PSPICE Macromodel

MAX810 IBIS Model

MAX810 PSPICE Macromodel

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Devices: 1-50 / 153

<-- Previous 1 2 3 4 Next -->

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX803LEXR			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803LEXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803LEXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803LEXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX803LEXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803LEXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803MEXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803MEXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803MEXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX803MEXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX803MEXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803REXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803REXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803REXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX803REXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803REXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803SEXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803SEXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803SEXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX803SEXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX803SEXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803SEXR-TG05			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803TEXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803TEXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803TEXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX803TEXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803TEXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803ZEXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803ZEXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX803ZEXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX803ZEXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX803ZEXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX809JEUR+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +105°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX809JEUR+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +105°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX809JEUR+T10			Active	SOT; Land Pattern: Not Available	-40°C to +105°C	See data sheet
MAX809JEUR-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis
MAX809JEUR-T10			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis
MAX809LEUR			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis
MAX809LEUR+			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +105°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX809LEUR+T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3+1*	-40°C to +105°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX809LEUR+T10			Active	SOT; Land Pattern: Not Available	-40°C to +105°C	See data sheet
MAX809LEUR-T			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis
MAX809LEUR-T10			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis
MAX809LEUR-TG05			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis
MAX809LEXR+			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX809LEXR+T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX809LEXR+T10			Active	SC70; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX809LEXR-T			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX809LEXR-T10			Active	SC70;3 pin;5.3 mm² Outline Drawing:21-0075 (PDF) Land Pattern: 90-0208 (PDF) Use pkgcode/variation: X3-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX809MEUR			Active	SOT;3 pin;8 mm² Outline Drawing:21-0051 (PDF) Land Pattern: 90-0179 (PDF) Use pkgcode/variation: U3-1*	-40°C to +105°C	RoHS/Lead-Free: No Materials Analysis

Devices: 1-50 / 153

<-- Previous 1 2 3 4 Next -->

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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More Information

Topmark Coding	MAX803
Topmark Coding	MAX809
Topmark Coding	MAX810
New Product Press Release	[ 2000-01-20 ]

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Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0344 Rev 7; 2010-03-05
This page last modified: 2010-03-05

3-Pin Microprocessor Reset Circuits

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Application Notes

Product Guides

Reliability Reports

Software/Models

Ordering Information

Similar Products by Function

Similar Products by Application

More Information

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