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33982_08

更新时间: 2022-12-26 14:42:17
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飞思卡尔 - FREESCALE 开关
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35页 823K
描述
Single Intelligent High-current Self-protected Silicon High Side Switch (2.0m ohm)

33982_08 数据手册

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Document Number: MC33982  
Rev. 14, 6/2008  
Freescale Semiconductor  
Advance Information  
Single Intelligent High-current  
Self-protected Silicon High Side  
Switch (2.0mΩ)  
33982B  
The 33982B is a self-protected silicon 2.0mΩ high side switch used  
to replace electromechanical relays, fuses, and discrete devices in  
power management applications. The 33982B 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 the output.  
SPI programmable fault trip thresholds allow the device to be adjusted  
for optimal performance in the application.  
Bottom View  
The 33982B is packaged in a power-enhanced 12 x 12 nonleaded  
PQFN package with exposed tabs.  
PNA SUFFIX  
98ARL10521D  
16-PIN PQFN  
Features  
• Single 2.0mΩ max high side switch with parallel input or SPI  
control  
ORDERING INFORMATION  
Temperature  
• 6.0V to 27V operating voltage with standby currents < 5.0μA  
• Output current monitoring with two SPI-selectable current ratios  
• SPI control of over-current limit, over-current fault blanking time,  
output-OFF open load detection, output ON/OFF control,  
watchdog timeout, slew rates, and fault status reporting  
• SPI status reporting of over-current, open and shorted loads,  
Device  
Package  
Range (T )  
A
MC33982BPNA/R2  
-40°C to 125°C  
16 PQFN  
over-temperature shutdown, under-voltage and over-voltage shutdown, fail-safe pin status, and program status  
• Enhanced -16V reverse polarity VPWR protection  
VDD  
VDD  
VDD  
VPWR  
33982B  
VDD  
FS  
VPWR  
GND  
I/O  
I/O  
WAKE  
SI  
SO  
SCLK  
CS  
SCLK  
CS  
MCU  
HS  
SO  
RST  
IN  
SI  
I/O  
I/O  
LOAD  
CSNS  
FSI  
A/D  
GND  
GND  
PWR GND  
Figure 1. 33982B 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., 2007-2008. All rights reserved.  

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