Dual High-Side Switch

The MC33143 is a dual high–side switch designed for solenoid control in harsh automotive applications, but is well suited for other environments. The device can also be used to control small motors and relays as well as solenoids. The MC33143 incorporates SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and DMOS power outputs. An internal charge pump is incorporated for efficient gate enhancement of the internal high–side power output devices.

• Designed to Operate Over Wide Supply Voltages of 5.5 V to 26 V
• Dual High–Side Outputs Clamped to –10 V for Driving Inductive Loads
• Internal Charge Pump for Enhanced Gate Drive
• Interfaces Directly to a Microcontroller with Parallel Input Control
• Outputs Current Limited to 3.0 A to 6.0 A for Driving Incandescent Loads
• Chip Enable “Sleep Mode” for Power Conservation
• Individual Output Status Reporting
• Fault Interrupt Output for System Interrupt Use
• Output ON or OFF Open Load Detection
• Overvoltage Detection and Shutdown
• Output Over Temperature Detection and Shutdown with Automatic Retry
• Sustained Current Limit or Immediate Overcurrent Shutdown Output Modes
• Output Short to Ground Detection and Shutdown with Automatic Retry
• Output Short to VPwr Detection