Document Number: MC34981 Freescale Semiconductor Rev. 2.0, 9/2013 Advance Information Single High Side Switch 34981 (4.0 mOhm), PWM clock up to Industrial 60 kHz The 34981 is a high frequency, self-protected 4.0 m R high DS(ON) HIGH SIDE SWITCH side switch used to replace electromechanical relays, fuses, and discrete devices in power management applications. The 34981 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 34981 is suitable for loads with high inrush current, as well as motors and all types of resistive and inductive loads. The 34981 is packaged in a 12 x 12 mm non-leaded power-enhanced PQFN package with exposed tabs. This device is powered by SMARTMOS technology. Features Bottom View Single 4.0 m R maximum high side switch DS(ON) FK (Pb-Free Suffix) 98ARL10521D PWM capability up to 60 kHz with duty cycle from 5% to 100% 16-PIN PQFN (12 X 12) Very low standby current Slew-rate control with external capacitor Applications: Overcurrent and overtemperature protection, undervoltage DC motors shutdown, and fault reporting Solenoids Reverse supply protection Power distribution Gate drive signal for external low side N-channel MOSFET with Heating elements protection features Pumps Output current monitoring Temperature feedback V DD V PWR V DD 34981 CONF VPWR CBOOT I/O FS I/O INLS OUT I/O EN MCU I/O INHS DLS A/D TEMP A/D CSNS M GLS OCLS SR GND Figure 1. 34981 Simplified Application Diagram Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. Freescale Semiconductor, Inc., 2013. All rights reserved.ORDERABLE PARTS ORDERABLE PARTS Table 1. Orderable Part Variations (1) Temperature (T ) Notes Package Part Number A MC34981ABHFK -40 to 125 C 16 PQFN Notes 1. To Order parts in Tape & Reel, add the R2 suffix to the part number. 34981 Analog Integrated Circuit Device Data 2 Freescale Semiconductor