LM805NDS, LM80644X01, LM809 Selling Leads, Datasheet
MFG:NS Package Cooled:SOP8 D/C:98+
LM805NDS, LM80644X01, LM809 Datasheet download
Part Number: LM805NDS
MFG: NS
Package Cooled: SOP8
D/C: 98+
LM805NDS, LM80644X01, LM809
- Table of contents:
Info of LM805NDS
Info of LM80644X01
Info of LM809
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About LM80
PDF/DataSheet Download
Datasheet: LM80
File Size: 446350 KB
Manufacturer: NSC [National Semiconductor]
Download : Click here to Download
About LM80
PDF/DataSheet Download
Datasheet: LM80
File Size: 446350 KB
Manufacturer: NSC [National Semiconductor]
Download : Click here to Download
About LM809
PDF/DataSheet Download
Datasheet: LM809
File Size: 188766 KB
Manufacturer: NSC [National Semiconductor]
Download : Click here to Download
LM809 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.
Reliability Metrics
| Part Number | Process | EFR Reject | EFR Sample Size | PPM | LTA Rejects | LTA Device Hours | FITS | MTTF (Hours) |
| LM809LD-2.63 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809LDX-2.63 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-2.45 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-2.63 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-2.93 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-3.08 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-4.00 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-4.38 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3-4.63 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-2.45 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-2.63 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-2.93 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-3.08 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-4.00 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-4.38 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
| LM809M3X-4.63 | CS065 | 2 | 34108 | 59 | 0 | 3862000 | 1 | 1095853045 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
LM809 Maximum Ratings
| Power on Reset | Yes |
| Watchdog | No |
| Power Fail Input | No |
| Manual Reset | No |
| Reset Timeout Period | 240 ms |
| On/Off Pin | No |
| Error Flag | Yes |
| Input Max Voltage | 6 Volt |
| RegType | Supervisor |
| Temperature Min | -40 deg C |
| Temperature Max | 105 deg C |
| View Using Catalog | |
LM809 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 VCC1V
` Low Supply Current, 15µA typ.
` Power supply transient immunity
`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 VCC1V
` Low Supply Current, 15µA typ.
` Power supply transient immunity
LM809 Typical Application
·Microprocessor Systems
· Computers
· Controllers
· Intelligent Instruments
·Portable/Battery-Powered Equipment
· Automotive
· Computers
· Controllers
· Intelligent Instruments
·Portable/Battery-Powered Equipment
· Automotive
LM809 Connection Diagram
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