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LM809M3-4.38/NOPB The Texas Instruments LM809M3-4.38/NOPB is a 3-pin voltage supervisor IC designed for supply monitoring. It provides an active-low, push-pull reset output.
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LM809M3-4.38/NOPB

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM809M3-4.38/NOPB is a 3-pin voltage supervisor IC designed for supply monitoring. It provides an active-low, push-pull reset output.
✓ Total Stock: 2,915 pcs
$ Price Range: $0.36

LM809M3-4.38/NOPB Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,540 pcs
On Request
2540 pcs On Request 1 On Request On Request 17+ On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
375 pcs
On Request
375 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LM809M3-4.38/NOPB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Style
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
Supplier Device Package
Type
Voltage
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LM809M3-4.38/NOPB Description

Short technical summary and product information.

The Texas Instruments LM809M3-4.38/NOPB is a 3-pin voltage supervisor IC, also known as a reset IC, designed to monitor power supply voltages in microprocessor and digital systems. It asserts a reset signal during power-up, power-down, and brown-out conditions when the VCC supply voltage drops below a factory-programmed threshold.

 

This specific variant monitors a single supply voltage with a typical threshold of 4.38V and offers a reset threshold accuracy of 5%. The reset output is active-low and push-pull, with a typical time delay of 240ms and a minimum power-on reset pulse width of 140ms. It operates over an industrial temperature range of -40°C to 105°C.

 

The LM809M3-4.38/NOPB is housed in a compact SOT-23-3 (TO-236-3, SC-59) surface-mount package, making it suitable for space-constrained applications. Its low supply current of typically 15µA contributes to power efficiency. This device is a superior upgrade to MAX809 and MAX810 series supervisors.

LM809M3-4.38/NOPB Quick Information

Product Type: Voltage Supervisor
Series: LM809
Canonical Name: LM809M3-4.38/NOPB 3-pin voltage supervisor with active-low, push-pull reset
Subcategory: Reset IC

LM809M3-4.38/NOPB Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM809M3-4.38/NOPB Estimated Pricing

Qty Low High
1+ $0.36 $0.36

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM809M3-4.38/NOPB Features

  • Monitors a single supply voltage.
  • Features a 4.38V threshold voltage.
  • Provides active-low push-pull reset.
  • Operates from -40°C to 105°C.
  • Packaged in SOT-23-3 for surface mounting.

LM809M3-4.38/NOPB Applications

  • Ensures microprocessor reset during power events.
  • Monitors power supply integrity.
  • Suitable for battery-powered devices.
  • Used in embedded control systems.

LM809M3-4.38/NOPB FAQs

7 frequently asked questions generated from this part’s specifications.
What is the package type?

The LM809M3-4.38/NOPB is available in SOT-23-3 (DBZ) surface mount package.

What is the operating temperature range?

-40°C to 105°C.

What is the threshold voltage?

4.38V.

What is the reset output type?

Active-low, push-pull.

What is the reset time delay?

240ms typical.

What is the supply current?

15µA typical.

How many supplies does it monitor?

1.

LM809M3-4.38/NOPB Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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LM809M3X-4.38/NOPB
LM809M3X-4.38/NOPB
Texas Instruments
The Texas Instruments LM809M3X-4.38/NOPB is a 3-pin voltage supervisor IC designed for microprocessor systems. It provides a reset signal during power fluctuations.
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