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TPIC71002-Q1 PDF预览

TPIC71002-Q1

更新时间： 2024-11-25 11:58:39
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
8页 370K
描述
Dual Channel Squib Drivers

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TPIC71002-Q1 数据手册

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TPIC71002-Q1  
www.ti.com  
SLIS139 –MARCH 2011  
Dual Channel Squib Drivers  
Check for Samples: TPIC71002-Q1  
1
FEATURES  
•
Two-Channel Squib Drivers For Airbag  
Measurement  
Application  
•
•
•
40-V Pin Capability on All Pins (Except GNDx,  
AGND, DGND, VCC5, VDDIO, AMX_OUT)  
•
•
Loop Diagnostics Monitor and Reporting  
Two Logic Inputs Providing Independent  
Safety Logic for Enabling/Disabling  
Deployment  
Operating Ambient Temperature Range: –40°C  
to 105°C  
Thermally Enhanced 48-Pin TSSOP DCA  
•
•
Two Independent Thermally Protected  
High-Side Drivers that Can Source Deployment  
or Diagnostic Current Level to Each Squib  
Load  
PowerPad™ Package  
APPLICATIONS  
•
Squib Drivers for Airbag Application  
Two Independent Avalanche Voltage and  
Thermally Protected Low-Side Drivers that can  
Sink Deployment or Diagnostic Current Level  
from Each Squib Load  
NC  
NC  
1
2
3
4
5
6
7
8
9
48 NC  
47 NC  
46 VZ3  
45 Z3  
NC  
NC  
•
•
•
Each Output Capable of 1.2 A/1.75 A Firing  
Current for Typical 2 ms/0.5 ms  
44  
NC  
NC  
43 NC  
NC  
SPI Slave Interface for Serial Bus  
Communication with Parity Check  
42 DGND2  
41 SOMI  
TEST1  
VCC5  
IWD  
Firing VZx Voltage Range 10V to 35V,  
Transients up to 40 V  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
SIMO  
SCLK  
CS_N  
TZ  
SPI/  
Digital  
AMX_OUT 10  
DIAG  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
DGND1  
AGND1  
SQREF1  
SQREF2  
VADC  
TEST2  
VA2  
•
•
Programmable Firing Time up to 8.2 ms  
Common Load Current Settings for All  
Deployment Loops, Using Registers  
RESET_N  
VDDIO  
AGND  
VA1  
BIAS  
•
•
Individual Firing Current Timer Limit Set for  
Each Deployment Loop, Using Registers  
TEST4  
NC  
Firing Current Timer to Monitor Firing Current  
Over Deployment Time for Each Deployment  
Loop  
TEST3  
GND1  
ZM1  
GND2  
ZM2  
•
Independent Switch Control for Both High-  
And Low-Side Switches  
Z1  
Z2  
VZ1  
VZ2  
26 NC  
25 NC  
NC 23  
NC 24  
•
•
•
Diagnostic Mode for Fault Checking  
Internal Fault Monitoring for Safe Operation  
Multiplexable Output Buffer for Analog Voltage  
Measurements  
•
Use of External Clamping Devices on Squib  
Pins is Not Required to Protect the  
Deployment ASIC Against Substrate Injection  
Effects During Deployment Due to Dynamic  
Shorts to Ground  
•
External Pin Connection to the Microprocessor  
ADC Supply for Ratio-Metric Squib Resistance  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2011, Texas Instruments Incorporated  
12345678

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