MC33285D

MOTOROLA MC33285 SEMICONDUCTOR TECHNICAL DATA Product Preview HIGH SIDE TMOS DRIVER Automotive Dual High Side TMOS Driver SILICON MONOLITHIC INTEGRATED CIRCUIT The MC33285 is a dual high side TMOS driver designed for use in the harsh automotive switching applications. The purpose of the MC33285 is to drive two power n-channel FETs in a high side application with an inductive load. The application in an automotive environment requires the capability of withstanding high voltages and load dump transients. The MC33285 is able to withstand reverse battery conditions at selected pins. It protects the n-channel power FET on OUT1 under over current condition. This device has one input to control both stages on or off. •Temperature Range from -40°C to +125°C •PWM Capability •Power TMOS # 1 Over-Current and Short-Circuit Protection •Voltage Range 7V to 40V •Extended Temperature Range from -40°C to 125°C •Load Dump Protected •Over Voltage Detection and Activation of OUT2 during Overvoltage •Single Input Control for both Output Stages •Capacitor Value of 100nF Connected to Pin CP •Analog Input Control Measurement Detection •OUT1 LOAD leakage measurement detection PIN CONNECTIONS SRC 1 8 IN OUT1 2 7 GND DRN 3 6 VCC OUT2 4 5 CP ORDERING INFORMATION Device Temperature Range Package MC33285D -40°C to +125°C SO8 Block Diagram And Typical Application V IGN + VREF S R - CP Charge pump Oscillator and Divider tLDdet Kl.30 C CP VCC DRN Bandgap Rthr ION2 ION1 Load Dump Detection OUT2 tOUT2ect IN V OUT2-V DRN > V TH2 R Q THRIN2 + OUT2 Activation Time S IOUTN2 - THRIN1 OUT1 V OUT1-V SRC > V TH1 + IOUTN1 GND R Q S OC Detection M + - tOCdet SRC OCPC start tOCdet This document contains information on a new product under development. Motorola reserves the  Motorola,Inc 1999 right to change or discontinue this product without notice. Rev 2.4 MC33285 MAXIMUM RATING Rating Maximum voltage at pins OUT1 OUT2 Maximum voltage at pin CP Symbol Value Unit VO U T VVCC + 20 V VCP 50 V Input voltage V i at DRN VDRN -2 ; 40 V Input voltage V i at SRC VSRC -5 ; 40 V Input voltage at pin VCC VCC -2 to 40 V Input Voltage at pin IN. Condition : -2V