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MC33996 Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC33996 Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 24 page Document Number: MC33996 Rev. 8.0, 8/2008 Freescale Semiconductor Advance Information * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2007-2008. All rights reserved. 16 Output Switch with SPI Control The 33996 is a 16-output low side switch with a 24-bit serial input control. It is designed for a variety of applications including inductive, incandescent, and LED loads. The Serial Peripheral Interface (SPI) provides both input control and diagnostic readout. A Pulse Width Modulation (PWM) control input is provided for pulse width modulation of multiple outputs at the same duty cycle. A dedicated reset input provides the ability to clear all internal registers and turn all outputs off. The 33996 directly interfaces with micro controllers and is compatible with both 3.3 and 5.0V CMOS logic levels. The 33996, in effect, serves as a bus expander and buffer with fault management features that reduce the MCU’s fault management burden. Features • Designed to operate 5.0V < VPWR < 27V • 24 Bit SPI for control and fault reporting, 3.3/5.0V compatible • Outputs are current limited (0.9 to 2.5A) to drive incandescent lamps • Output voltage clamp of +50V during inductive switching • On/Off control of open load detect current (LED application) •VPWR standby current < 10μA •RDS(ON) of 0.55Ω at 25°C typical • Independent over-temperature protection • Output selectable for PWM control • Output ON short-to-VBAT and off short-to-ground/open detection • Pb-free packaging designated by suffix code EK Figure 1. 33996 Simplified Application Diagram LOW SIDE SWITCH 33996 ORDERING INFORMATION Device Temperature Range (TA) Package MC33996EK/R2 -40°C to 125°C 32 SOICW-EP MCZ33996EK/R2 EK SUFFIX (PB-FREE) 98ARL10543D 32-PIN SOICW EXPOSED PAD VPWR MCU 33996 LED Lamp Solenoid/Relay Vdd 3.3 V/5.0 V VDD VPWR GND OUT15 OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 OUT9 OUT10 OUT11 OUT12 OUT13 OUT14 VBAT SOPWR SO MOSI PWM PWM SI MISO CS CS SCLK SCLK RST RST /8 |
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