text.skipToContent text.skipToNavigation

LM809M3X-2.93/NOPB ACTIVE

3-pin voltage supervisor (reset IC) with active-low, push-pull reset for supply monitoring

US ECCN: EAR99 US/Local Export Classification Number

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
SOT-23 (DBZ) | 3 3,000 | LARGE T&R -40 to 105
Package | Pins SOT-23 (DBZ) | 3
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 105
View TI packaging information

Features for the LM809

  • Precision Monitoring of Supply Voltages
    • Available Threshold Options:
      2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Superior Upgrade to MAX809 and MAX810
  • Fully Specified Over Temperature
  • 140-ms Minimum Power-On Reset Pulse Width,
    240-ms Typical
    • Active-Low RESET Output (LM809)
    • Active-High RESET Output (LM810)
  • Ensured RESET Output Valid for VCC ≥ 1 V
  • Low Supply Current, 15-µA Typical
  • Power Supply Transient Immunity

Description for the LM809

The LM809 and LM810 microprocessors 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 and LM810 are 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 240 ms 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 5-V, 3.3-V, and 3-V supply voltages.

With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.

Pricing


Qty Price (USD)
1-99 0.637
100-249 0.433
250-999 0.334
1,000+ 0.222

Additional package qty | carrier options

Package qty | Carrier 1,000 | LARGE T&R
Inventory Out of stock
Qty | Price (USD) 1ku | 0.222 1-99 0.637 100-249 0.433 250-999 0.334 1,000+ 0.222