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Keterex: KX1130 Ignition Controller IC

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Keterex: KX1130 Ignition Controller IC
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Mixed-Signal ICs and Systems

KX1130 Ignition Controller IC


  • Three Advance Angles: Start, Idle, and Run
  • Works in Magneto-based and CDI Systems
  • Ignition Output Driver for SCR
  • On-chip RC Oscillator
  • RPM Limiter
  • Schmitt Trigger Inputs Provide Noise Immunity
  • Operating Voltage: 2.7V − 5.5V
  • Operating Temperature: -40°C to 125°C
  • Package: 8-pin SOIC


The KX1130 is an electronic ignition controller for small gasoline engines.  The KX1130 provides variable ignition timing by selecting one of three ignition advance angles based on engine speed.  Variable timing provides better cold start performance as well as higher efficiency when running at high engine speeds.

Using an RC oscillator time base, the KX1130 measures the time between pulses from the magneto to determine the speed of the engine.  Based on the engine speed, the KX1130 calculates the appropriate delay to position the ignition pulse at the desired advance angle.


KX1130 Block Diagram

Technical Documents

KX1130BR KX1130 Product Brief
AN1101 Application Note 1101: Economical Implementation of Varible Spark Advace for Small Gasoline Engines

Evaluation and Design Resources

Related Products

Ordering Part Number

Part Number Package / Case Operating Temp. Packaging
KX1130AV SOIC-8  150mil -40°C to 125°C Tube
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