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MC33981| Datasheet

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MC33981| Datasheet

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Freescale Semiconductor Advance Information

Document Number: MC33981 Rev. 6.0, 5/2007

Single High-Side Switch (4.0 m), PWM clock up to 60kHz
The 33981 is a high-frequency, self-protected 4.0 m RDS(ON) highside 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 in-rush 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 m 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 Overcurrent and Overtemperature Protection, Undervoltage 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-Fre
e Packaging Designated by Suffix Code PNA

33981B
HIGH-SIDE SWITCH

SCALE 1:1 PNA (Pb-Free Suffix)
98ARL10521D 16-PIN PQFN (12 X 12)

Bottom View

ORDERING INFORMATION
Device MC33981BPNA/R2 Temperature Range (TA) - 40 C to 125 C Package 16 PQFN

VDD VDD

VPWR

33981
CONF
I/O I/O

VPWR CBOOT OUT DLS

FS INLS EN INHS TEMP CSNS

MCU

I/O I/O A/D A/D

M GLS OCLS SR GND

Figure 1. 33981 Simplified Application Diagram

* This document contains certain information on a new product. Specifications and information herein are subject to change without notice.

Freescale Semiconductor, Inc., 2007. All rights reserved.


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