Motorola MC33094DW Ignition Control Device Data Sheet

About this manual

The MC33094DW is an analog integrated circuit designed for 12 V automotive ignition applications. It provides over‑voltage shutdown, auto start‑up, ignition coil current and voltage limiting, and Hall‑sensor input processing. The device is packaged in a surface‑mount SO‑16L case and operates from –40 °C to 125 °C ambient temperature.

Key electrical characteristics include a typical supply voltage of 28.6 V, maximum junction temperature of 150 °C, and programmable timing features such as negative‑edge filtering and adaptive dwell control. Detailed pin connections, timing diagrams, and temperature‑dependent performance graphs are provided throughout the document.

What's inside

• Electrical Characteristics
• Pin Connections
• Ordering Information
• Block Diagram Description
• Input Positive Threshold Voltage vs Temperature
• Output Current vs Temperature
• Timing Parameters
• Adaptive Dwell Logic

Specifications

Frequently asked questions

Does the MC33094DW provide over‑voltage shutdown protection?

Yes, the device includes over‑voltage shutdown protection.