MC33981 Datasheet (Motorola) - High-Frequency / High-Current / Self-Protected High-Side Switch

MC33981, High-Frequency / High-Current / Self-Protected High-Side Switch

of some of these terminals can be found in the System/Application Information section beginning on page 19.

Terminal 1 Terminal Name CSNS Formal Name Output Current Monitoring Definition This terminal is used to output a current proportional to the high-side OUT current and is used externally to ge

Freescale Semiconductor, Inc.

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Document order number: MC33981 Rev 2.0, 10/2004 Preliminary Information High-Frequency, High-Current, Self-Protected High-Side Switch (4.0 mΩ up to 60 kHz) 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.

MC33981 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 nonleaded power-enhanced Power QFN package with exposed tabs. Features

* Single 4.0 mΩ RDS(ON) Maximum High-Side Switch