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LM809M3-2.93/NOPB ACTIVE

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

Inventory: 80,305
 
Custom reel may be available

Download data sheet for LM809
  |   View additional information for LM809

Packaging information

Package | Pins SOT-23 (DBZ) | 3
Operating temperature range (°C) S (-40 to 105)
Package qty | Carrier: 1,000 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Features

  • 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

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.

Qty Price
1-99 $0.58
100-249 $0.39
250-999 $0.30
1,000+ $0.20

Alternative carriers

Part number LM809M3X-2.93/NOPB
Package qty | Carrier 3,000 | LARGE T&R
Custom reel may be available
Inventory 8,408
Qty | Price (USD) 1ku | $0.20