Description

The MC33198D is a high side TMOS driver, dedicated for automotive applications. It is used in conjunction with an external power MOSFET for high side drive applications. The device can drive and protect a large variety of MOSFET. The device has CMOS compatible input control, charge pump to drive the MOSFET gate, fault detection circuitry based on programmable Vds monitoring to detect shorted load. It also includes a programmable timer function to eliminate undesired switch off due to in rush currents and a status pin which reports the output status in both on and off MOSFET state.

Specifications and features

• Designed for Automotive High Side Driver Application

• Works with a Wide Variety of N-Channel Power MOSFETs
• PWM Capability
• On Board Charge Pump Capable of Charging 25nF in less than 1ms with No External Components Required
• Drive Inductive Load with No External Clamp Circuitry Required
• CMOS Logic Compatible Input Control
• TMOS Over Current and Short Circuit Protection
• Fault Output to Report an Over MOSFET Current Condition
• Output Status Available when MOSFET is On or Off
• Extended Temperature Range from -40°C to 125°C
• Protected Against Automotive Transients with few External Components
• Over Voltage and Under Voltage Shutdown

Application Scenarios

The MC33198D is designed specifically for automotive high side driver applications. It works with a wide variety of N-Channel power MOSFETs and can handle inductive loads without the need for external clamp circuitry. It is compatible with CMOS logic and offers TMOS over current and short circuit protection. The device is protected against automotive transients and has an extended temperature range from -40°C to 125°C. It is suitable for use in automotive systems where high side drive applications are required.

Comparison

• Compatible with a wide variety of N-Channel power MOSFETs
• Works with inductive loads without the need for external clamp circuitry
• Offers TMOS over current and short circuit protection
• Protected against automotive transients
• Can operate in extended temperature range

• Requires an external power MOSFET for high side drive applications