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Freescale Semiconductor - Dual Intelligent High-Current Self Protected Silicon High-Side Switch

Numéro de référence 33984B
Description Dual Intelligent High-Current Self Protected Silicon High-Side Switch
Fabricant Freescale Semiconductor 
Logo Freescale Semiconductor 





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33984B fiche technique
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Advance Information
Document Number: MC33984
Rev. 9.0, 1/2007
Dual Intelligent High-Current
Self-Protected Silicon
High-Side Switch (4.0 mΩ)
33984B
The 33984 is a dual self-protected 4.0 msilicon 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 mMax 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, Fail-
Safe Pin Status, and Program Status
• Enhanced -16 V Reverse Polarity VPWR Protection
HIGH-SIDE SWITCH
BOTTOM VIEW
PNA SUFFIX
98ARL10521D
16-PIN PQFN
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33984BPNA/R2 -40°C to 125°C
16 PQFN
VDD
VDD
I/O
I/O
SO
SCLK
MCU CS
SI
I/O
I/O
I/O
A/D
VDD
VPWR
33984B
VDD
VPWR
FS
WAKE
SI
SCLK
CS
SO
RST
INO
IN1
CSNS
FSI
HS1
HS0
GND
GND
LOAD
LOAD
Figure 1. 33984 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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