Description

The CA3228 is a monolithic integrated circuit designed as an automotive speed-control system.

The system monitors vehicle speed and compares it to a stored reference speed. Any deviation in vehicle speed causes a servo mechanism to open or close the engine throttle as required to eliminate the speed error. The reference speed, set by the driver, is stored in a 9-bit counter.

Features

• Low Power Dissipation

• I2L Control Logic

• Power-On Reset

• On-Chip Oscillator for System Time Reference

• Single Input Line for Operator Commands

• Amplitude Encoded Control Signals

• Transient Compensated Input Commands

• Controlled Acceleration Mode

• Internal Redundant Brake and Low-Speed Disable

• Braking Disable

Applications

• Automotive Speed Control

• Residential and Industrial Heating and Cooling Controls

• Industrial AC and DC Motor Speed Control

• Applications Requiring Acceleration and Deceleration Control