LM397MFX (C397) Voltage Comparator IC SOT23-5 SMD Package
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LM397MFX (C397) Voltage Comparator IC SOT23-5 SMD Package

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  • Product SKU: INTEG232
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Highlights
  • Original, High Quality
  • KitsGuru Warranty
  • LM397MFX (C397) Comparator
  • Low Power Operation
  • Single Comparator
  • 2V–36V Supply Range
  • SOT23-5 SMD Package
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Specification

Description

LM397MFX (C397) Voltage Comparator IC – SOT-23-5 SMD Package

The LM397MFX (C397) is a single-channel, low-power voltage comparator IC housed in a compact SOT-23-5 surface-mount package. It compares two analog voltages and provides a fast, open-drain digital output suitable for logic-level interfacing.

Designed for precision voltage comparison in battery-powered and space-constrained applications, the LM397 features a low input offset voltage, wide supply range, and open-drain output for flexibility with pull-up logic levels.

Technical Details

  • IC Name: LM397MFX (Marking Code: C397)
  • Function: Single Voltage Comparator
  • Package: SOT-23-5 (SMD)
  • Input Voltage Range: 0V to VCC – 1.5V
  • Output Type: Open-drain (requires pull-up resistor)
  • Supply Voltage Range: 2.7V to 36V
  • Input Offset Voltage: ±2mV (typical)
  • Quiescent Current: ~70µA (typical)
  • Response Time: ~1.3µs (with 5mV overdrive)
  • CMRR: 65dB (typical)
  • Operating Temperature Range: –40°C to +125°C

Features

  • Single comparator in ultra-small SOT-23-5 package
  • Open-drain output for flexible interfacing
  • Wide operating voltage: 2.7V to 36V
  • Low power consumption (~70µA)
  • Low offset voltage (±2mV typical)
  • Fast switching response (~1.3µs)
  • Compatible with logic-level pull-up resistors

Applications

  • Overvoltage and undervoltage detection
  • Zero-crossing detectors
  • Battery monitoring and power management
  • Logic-level signal conversion
  • Oscillators and timing circuits
  • Analog threshold detection

Physical Attributes

  • Package Type: SOT-23-5
  • Pin Count: 5
  • Dimensions: ~3.0mm x 1.75mm x 1.1mm (L x W x H)
  • Mounting Type: Surface Mount (SMT)
  • Weight: ~0.05g

Package Includes

  • 1 x LM397MFX (C397) Voltage Comparator IC – SOT-23-5 Package

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