Designed for automotive ignition applications in 12 V systems, the MC33094DW provides outstanding control of the ignition coil when used with an appropriate Motorola Power Darlington Transistor. Engine control systems utilizing these devices for ignition coil control exhibit exceptional fuel efficiency and low exhaust emissions. The device is designed to be controlled from a single–ended Hall Sensor input. The circuit is built using high–density Integrated–Injection Logic (IIL) processing incorporating high current–gain PNP and NPN transistors.
The MC33094DW is packaged in an economical surface mount package and specified over an ambient temperature of –40°C to 125°C with a maximum junction temperature of 150°C.

• External Capacitors Program the Devices Timing Characteristics
• Overvoltage Shutdown Protection
• Auto Start–Up Capability After Overvoltage Condition Ceases
• Allows for Push Start–Up in Automotive Applications
• Ignition Coil Current Limiting
• Ignition Coil Voltage Limiting
• Band Gap Reference for Enhanced Stability Over Temperature
• Negative Edge Filter for Hall Sensor Input Transient Protection
• Hall Sensor Inputs for RPM and Position Sensing
• –40°C ≤ TA ≤ 125°C Ambient Operating Temperature