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 Products > Analog - Regulators > Regulator Control & Supervisory Function > LM809

LM809  Product Folder

3-Pin Microprocessor Reset Circuits
  

See Also:		   
LP3470 - ADJ reset timeout, open-drain output, precision
     MCP809 - DIFFERENT PINOUT FOR LM809
Generic P/N 809
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics		 Application
Notes

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 105 
Multiple Output Capability No 
On/Off Pin No 
Error Flag Yes 
InputMin Voltage (Volt) - 
InputMax Voltage (Volt) 6 
Output Current (mA) - 
Output Voltage (Volt) - 
Adjustable Output No 
Switching Frequency (Hz) - 
Adj Switch Frequency - 
Sync Pin - 
Power on Reset Yes 
Watchdog No 
Power Fail Input No 
Manual Reset No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM809 LM810 3-Pin Microprocessor Reset Circuits 184 Kbytes 4-Sep-02 View Online Download Receive via Email
LM809 LM810 3-Pin Microprocessor Reset Circuits (JAPANESE)
 98 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM809LD-2.63LLP6StatusFull productionN/AN/ASamples1K+$0.26reel
of
1000		S13
XV
11-13 weeks50000
LM809LDX-2.63LLP6StatusFull productionN/AN/A 1K+$0.26reel
of
4500		S13
XV
11-13 weeks50000
LM809M3-2.45SOT-233StatusFull productionN/AN/ASamples
Buy Now 		1K+$0.26reel
of
1000		SFB
XTT
15-17 weeks50000
LM809M3-2.63SOT-233StatusFull productionN/AN/ASamples
Buy Now		1K+$0.26reel
of
1000		S3B
XTT
15-17 weeks50000
LM809M3-2.93SOT-233StatusFull productionN/AN/ASamples
Buy Now		1K+$0.26reel
of
1000		S4B
XTT
15-17 weeks50000
LM809M3-3.08SOT-233StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.26reel
of
1000		S5B
XTT
16-18 weeks50000
LM809M3-4.00SOT-233StatusFull productionN/AN/ASamples
Buy Now 		1K+$0.26reel
of
1000		S6B
XTT
15-17 weeks50000
LM809M3-4.38SOT-233StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.26reel
of
1000		S7B
XTT
15-17 weeks50000
LM809M3-4.63SOT-233StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.26reel
of
1000		S8B
XTT
15-17 weeks50000
LM809M3X-2.45SOT-233StatusFull productionN/AN/A 1K+$0.26reel
of
3000		SFB
XTT
15-17 weeks50000
LM809M3X-2.63SOT-233StatusFull productionN/AN/A 
Buy Now		1K+$0.26reel
of
3000		S3B
XTT
15-17 weeks50000
LM809M3X-2.93SOT-233StatusFull productionN/AN/A 
Buy Now		1K+$0.26reel
of
3000		S4B
XTT
15-17 weeks50000
LM809M3X-3.08SOT-233StatusFull productionN/AN/A 
Buy Now		1K+$0.26reel
of
3000		S5B
XTT
15-17 weeks50000
LM809M3X-4.00SOT-233StatusFull productionN/AN/A 
Buy Now		1K+$0.26reel
of
3000		S6B
XTT
15-17 weeks50000
LM809M3X-4.38SOT-233StatusFull productionN/AN/A 1K+$0.26reel
of
3000		S7B
XTT
15-17 weeks50000
LM809M3X-4.63SOT-233StatusFull productionN/AN/A 
Buy Now		1K+$0.26reel
of
3000		S8B
XTT
15-17 weeks50000
LM809-2.45 MDCUnpackaged DieFull productionN/AN/ASamples  gel pak
of
N/A		-
N/A0
LM809-2.63 MDCUnpackaged DieFull productionN/AN/A   gel pak
of
N/A		-
N/A0
LM809-2.93 MDCUnpackaged DieFull productionN/AN/ASamples  gel pak
of
N/A		-
N/A0
LM809-3.08 MDCUnpackaged DieFull productionN/AN/A   gel pak
of
N/A		-
N/A0
LM809-4.00 MDCUnpackaged DieFull productionN/AN/A   gel pak
of
N/A		-
N/A0
LM809-4.38 MDCUnpackaged DieFull productionN/AN/ASamples  gel pak
of
N/A		-
N/A0
LM809-4.63 MDCUnpackaged DieFull productionN/AN/ASamples  gel pak
of
N/A		-
N/A0
LM809-2.45 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LM809-2.63 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LM809-2.93 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LM809-3.08 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LM809-4.00 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LM809-4.38 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LM809-4.63 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

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 VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240ms after VCC rises 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.

Features

  • Precise monitoring of 3V, 3.3V, and 5V supply voltages
  • Superior upgrade to MAX809/810
  • Fully specified over temperature
  • 140ms min. Power-On Reset pulse width, 240ms typical Active-low RESET# Output (LM809) Active-high RESET Output (LM810)
  • Guaranteed RESET Output valid for VCC>=1V
  • Low Supply Current, 15µA typ.
  • Power supply transient immunity

Applications

  • Microprocessor Systems
  • Computers
  • Controllers
  • Intelligent Instruments
  • Portable/Battery-Powered Equipment
  • Automotive

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM809-2.45 MDCCS06508800006000006169643205
LM809-2.45 MWCCS06508800006000006169643205
LM809-2.63 MDCCS06508800006000006169643205
LM809-2.63 MWCCS06508800006000006169643205
LM809-2.93 MDCCS06508800006000006169643205
LM809-2.93 MWCCS06508800006000006169643205
LM809-3.08 MDCCS06508800006000006169643205
LM809-3.08 MWCCS06508800006000006169643205
LM809-4.00 MDCCS06508800006000006169643205
LM809-4.00 MWCCS06508800006000006169643205
LM809-4.38 MDCCS06508800006000006169643205
LM809-4.38 MWCCS06508800006000006169643205
LM809-4.63 MDCCS06508800006000006169643205
LM809-4.63 MWCCS06508800006000006169643205
LM809M3-2.45CS06508800006000006169643205
LM809M3-2.63CS06508800006000006169643205
LM809M3-2.93CS06508800006000006169643205
LM809M3-3.08CS06508800006000006169643205
LM809M3-4.00CS06508800006000006169643205
LM809M3-4.38CS06508800006000006169643205
LM809M3-4.63CS06508800006000006169643205
LM809M3X-2.45CS06508800006000006169643205
LM809M3X-2.63CS06508800006000006169643205
LM809M3X-2.93CS06508800006000006169643205
LM809M3X-3.08CS06508800006000006169643205
LM809M3X-4.00CS06508800006000006169643205
LM809M3X-4.38CS06508800006000006169643205
LM809M3X-4.63CS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


Application Notes

TitleSize in KbytesDate
View Online
Download
Receive via Email
AN-1187: Application Note 1187 Leadless Leadframe Package (LLP) 1463 Kbytes 26-Sep-03 View Online Download Receive via Email
Application Note 1187 Leadless Leadframe Package (LLP) (JAPANESE)
 5326 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 15-Jan-2004]

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