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MC33984B

Freescale Semiconductor
Part Number MC33984B
Manufacturer Freescale Semiconductor
Description Dual Intelligent High-Current Self Protected Silicon High-Side Switch
Published Aug 8, 2007
Detailed Description www.DataSheet4U.com Freescale Semiconductor Advance Information Document Number: MC33984 Rev. 9.0, 1/2007 Dual Intell...
Datasheet PDF File MC33984B PDF File

MC33984B
MC33984B


Overview
www.
DataSheet4U.
com Freescale Semiconductor Advance Information Document Number: MC33984 Rev.
9.
0, 1/2007 Dual Intelligent High-Current Self-Protected Silicon High-Side Switch (4.
0 mΩ) The 33984 is a dual self-protected 4.
0 mΩ silicon switch used to replace electromechanical relays, fuses, and discrete devices in power management applications.
The 33984 is designed for harsh environments, and it includes self-recovery features.
The device is suitable for loads with high inrush current, as well as motors and all types of resistive and inductive loads.
Programming, control, and diagnostics are implemented via the Serial Peripheral Interface (SPI).
A dedicated parallel input is available for alternate and pulse-width modulation (PWM) control of each output.
SPI-programmable fault trip thresholds allow the device to be adjusted for optimal performance in the application.
The 33984 is packaged in a power-enhanced 12 x 12 nonleaded PQFN package with exposed tabs.
Features • Dual 4.
0 mΩ Max High-Side Switch with Parallel Input or SPI Control • 6.
0 V to 27 V Operating Voltage with Standby Currents < 5.
0 µA • Output Current Monitoring with Two SPI-Selectable Current Ratios • SPI Control of Overcurrent Limit, Overcurrent Fault Blanking Time, Output-OFF Open Load Detection, Output ON/OFF Control, Watchdog Timeout, Slew Rates, and Fault Status Reporting • SPI Status Reporting of Overcurrent, Open and Shorted Loads, Overtemperature, Undervoltage and Overvoltage Shutdown, FailSafe Pin Status, and Program Status • Enhanced -16 V Reverse Polarity VPWR Protection VDD VDD VDD 33984B HIGH-SIDE SWITCH BOTTOM VIEW PNA SUFFIX 98ARL10521D 16-PIN PQFN ORDERING INFORMATION Device MC33984BPNA/R2 Temperature Range (TA) - 40°C to 125°C Package 16 PQFN VPWR 33984B VDD I/O I/O SO SCLK FS WAKE SI SCLK CS SO RST INO IN1 CSNS FSI GND LOAD HS0 LOAD HS1 VPWR GND MCU CS SI I/O I/O I/O A/D Figure 1.
33984 Simplified Application Diagram * This document contains certain information on a new ...


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