參數(shù)資料
型號(hào)： MC33797
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Four Channel Squib Driver IC
中文描述： 四通道爆管驅(qū)動(dòng)IC
文件頁(yè)數(shù)： 1/32頁(yè)
文件大小： 639K
代理商： MC33797
MC33797
Rev 2.0, 07/2005
Freescale Semiconductor
Technical Data
* 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.
Four Channel Squib Driver IC
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.
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
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)
Pb-Free Packaging designated by Suffix Code EK
Figure 1. 33797 Simplified Application Diagram
SQUIB DRIVER
33797
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33797EK/R2
-40°C to 85°C
32 SOICW
EK SUFFIX (Pb-Free)
98ARH99137A
32-TERMINAL SOICW
VDIAG_2
VFIRE_1A
VDIAG_1
FEN_1
FEN_2
CS
VFIRE_2B
VDD
VFIRE_2A
SQB_HI
SENSE
VFIRE_RTN
SQB_LO
R_LIMIT_2
GND
VFIRE_1B
R_LIMIT_1
R_DIAG
MOSI
CLK
MISO
33797
FIRING
CAP
FIRING
CAP
VPWR
TYPICAL
AIR BAG
POWER SUPPLY
VIN
VBOOST1
VBOOST2
ENABLE
SQUIB
(1A, 1B, 2A, 2B)
/4
/2
MICROPROCESSOR
RST
5.0 V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC33797BPEW 功能描述:功率驅(qū)動(dòng)器IC Four Channel Squib Dr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC33797BPEWR2 功能描述:功率驅(qū)動(dòng)器IC Four Channel Squib Dr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC33813AE 功能描述:功率驅(qū)動(dòng)器IC 1 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC33813AER2 功能描述:功率驅(qū)動(dòng)器IC 1 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC33814AE 功能描述:功率驅(qū)動(dòng)器IC 2 CYL SM ENG CONTROL IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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