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33984B

更新时间: 2022-04-23 23:00:11
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飞思卡尔 - FREESCALE 开关
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36页 749K
描述
Dual Intelligent High-Current Self Protected Silicon High-Side Switch (4.0 mohm)

33984B 数据手册

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Document Number: MC33984  
Rev. 9.0, 1/2007  
Freescale Semiconductor  
Advance Information  
Dual Intelligent High-Current  
Self-Protected Silicon  
33984B  
High-Side Switch (4.0 mΩ)  
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.  
HIGH-SIDE SWITCH  
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.  
BOTTOM VIEW  
The 33984 is packaged in a power-enhanced 12 x 12 nonleaded  
PQFN package with exposed tabs.  
PNA SUFFIX  
98ARL10521D  
16-PIN PQFN  
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  
ORDERING INFORMATION  
Temperature  
Package  
Device  
Range (T )  
A
MC33984BPNA/R2 -40°C to 125°C  
16 PQFN  
• Enhanced -16 V Reverse Polarity VPWR Protection  
VDD  
VDD  
VDD  
VPWR  
33984B  
VDD  
FS  
VPWR  
GND  
I/O  
I/O  
WAKE  
HS1  
HS0  
SI  
SO  
SCLK  
CS  
SCLK  
CS  
MCU  
SO  
SI  
LOAD  
RST  
INO  
IN1  
I/O  
I/O  
I/O  
LOAD  
CSNS  
FSI  
A/D  
GND  
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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