Document Number: MC33981 Freescale Semiconductor Rev. 11.0, 7/2012 Technical Data Single High Side Switch (4.0 mOhm), PWM clock up to 33981 60 kHz The 33981 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 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 mm non-leaded power-enhanced PQFN package with exposed tabs. Features Single 4.0 m R maximum high side switch Bottom View DS(ON) PWM capability up to 60 kHz with duty cycle from 5% to 100% FK (Pb-Free Suffix) Very low standby current 98ARL10521D 16-PIN PQFN (12 X 12) Slew-rate control with external capacitor Over-current and over-temperature protection, under-voltage shutdown, and fault reporting ORDERING INFORMATION Reverse battery protection Device Temperature Gate drive signal for external low side N-channel MOSFET with (Add R2 Suffix for Package Range (T ) A protection features Tape and Reel) Output current monitoring MC33981BHFK Temperature feedback - 40 to 125 C 16 PQFN MC33981ABHFK V DD V PWR V DD 33981 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. 33981 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., 2007 - 2012. All rights reserved.DEVICE VARIATIONS DEVICE VARIATIONS Table 1. Device Peak Solder Temperature (1) Device Description Original BOM and lower Peak Package Temperature solderability. MC33981BHFK Improved BOM and higher Peak Package Temperature solderability. MC33981ABHFK Notes 1. PPT values can be found on Freescales web site, or contact sales. Reference Peak Package Reflow (6) (7) Temperature During Reflow , 33981 Analog Integrated Circuit Device Data 2 Freescale Semiconductor