The 33981 is a high frequency, self-protected 4.0 mΩ RDS(ON) high side switch used to replace electromechanical relays, fuses, and discrete devices in power management applications. The 33981 can be controlled by Pulse-width Modulation (PWM) with a frequency up to 60 kHz. It is designed for harsh environments, and it includes self-recovery features. The 33981 is suitable for loads with high inrush current, as well as motors and all types of resistive and inductive loads. The 33981 is packaged in a 12 x 12 non-leaded power-enhanced Power QFN package with exposed tabs.

Features

• Single 4.0 mΩ RDS(ON) maximum high side switch

• PWm capability up to 60 kHz with duty cycle from 5% to 100%

• Very low standby current

• Slew rate control with external capacitor

• Over-current and over-temperature protection, under-voltage shutdown and fault reporting

• Reverse battery protection

• Gate drive signal for external low side N-channel MOSFET with protection features

• Output current monitoring

• Temperature feedback

• Pb-free packaging designated by suffix code PNA