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MC33797

更新时间: 2024-01-12 11:35:50
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 驱动器
页数 文件大小 规格书
32页 641K
描述
Four Channel Squib Driver IC

MC33797 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:LEAD FREE, PLASTIC, SOIC-32
针数:32Reach Compliance Code:unknown
风险等级:5.65Is Samacsys:N
接口集成电路类型:INTERFACE CIRCUITJESD-30 代码:R-PDSO-G32
JESD-609代码:e3长度:11 mm
湿度敏感等级:3功能数量:1
端子数量:32最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP32,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):245电源:5 V
认证状态:Not Qualified座面最大高度:2.65 mm
子类别:Other Interface ICs最大供电电压:5.25 V
最小供电电压:4.75 V标称供电电压:5 V
表面贴装:YES温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:7.5 mm
Base Number Matches:1

MC33797 数据手册

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MC33797  
Rev 2.0, 07/2005  
Freescale Semiconductor  
Technical Data  
Four Channel Squib Driver IC  
33797  
The Four Channel Squib Driver IC is a complete squib diagnostic  
and deployment interface for use in automotive air bag modules.  
Extensive diagnostics and system control features are incorporated  
to provide fail-safe operation. The device contains a serial peripheral  
interface (SPI) compatible 8-bit interface to allow microprocessor  
control.  
SQUIB DRIVER  
The device has the capability to be used in a standard four-channel  
squib driver IC or in a cross-coupled state with the high- and low-side  
squib drivers located on separate squib driver ICs. Both the high- and  
low-side output drivers are protected against temporary shorts to  
battery or ground. The current limit threshold is set by an external  
resistor.  
Features  
• Four-Channel High-Side and Low-Side 2.0 A FET Switches  
• Externally Adjustable FET Current Limiting  
• Adjustable Current Limit Range: 0.8 A to 2.0 A  
• Individual Channel Current Limit Detection with Timing Duration  
Measurement, Communicated via SPI  
EK SUFFIX (Pb-Free)  
98ARH99137A  
32-TERMINAL SOICW  
• 8-Bit SPI for Diagnostics and FET Switch Activation  
• Diagnostics for High-Side Safing Sensor Status  
• Resistance and Voltage Diagnostics for Squibs  
• Squib Driver IC Capability to Be Used for Cross-Coupled Driver  
Firing Application (Allows High- and Low-Side FET Switches to Be  
Located on Separate Squib Driver ICs)  
ORDERING INFORMATION  
Temperature  
Device  
Package  
Range (T )  
A
• Pb-Free Packaging designated by Suffix Code EK  
MC33797EK/R2  
-40°C to 85°C  
32 SOICW  
33797  
/4  
VIN  
VBOOST1  
SQB_HI  
VDIAG_1  
VPWR  
SQUIB  
(1A, 1B, 2A, 2B)  
TYPICAL  
AIR BAG  
VFIRE_1A  
VFIRE_1B  
VDIAG_2  
FIRING  
CAP  
/4  
/4  
SENSE  
POWER SUPPLY  
VBOOST2  
SQB_LO  
/2  
VFIRE_RTN  
VFIRE_2A  
VFIRE_2B  
FIRING  
CAP  
5.0 V  
R_LIMIT_1  
R_LIMIT_2  
VDD  
CS  
CLK  
R_DIAG  
MISO  
MOSI  
RST  
ENABLE  
ENABLE  
FEN_1  
FEN_2  
MICROPROCESSOR  
GND  
Figure 1. 33797 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., 2005. All rights reserved.  

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