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TPIC71004-Q1 Arkusz danych(PDF) 1 Page - Texas Instruments |
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TPIC71004-Q1 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 8 page RESET_N SPI/ Digital BIAS DIAG VZ3 Z3 ZM3 GND3 DGND2 SOMI SCLK TZ0 VDDIO CS_N SIMO AGND VA1 TEST4 NC GND2 ZM2 Z2 VZ2 NC NC NC NC VZ0 Z0 ZM0 GND0 TEST VCC5 AMX_OUT AGND1 SQREF2 SQREF1 DGND1 IWD VADC TEST2 VA2 TEST3 GND1 ZM1 Z1 VZ1 NC NC NC NC 48 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 1 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 TPIC71004-Q1 www.ti.com SLVSAT2 – FEBRUARY 2011 Quad-Channel Driver for Airbag Deployment Check for Samples: TPIC71004-Q1 1 FEATURES • An External Pin Connection to the Microprocessor ADC Supply for Ratio-metric 2 • Quad-Channel Squib Drivers for Airbag Squib Resistance Measurement Application • 40-V Pin Capability on All Pins (Except GNDx, • Loop Diagnostics Monitor and Reporting AGND, DGND, VCC5, VDDIO, AMX_OUT) • Two Logic Inputs Providing Independent • Operating Ambient Temperature Range: –40°C Safety Logic for Enabling/Disabling to 105 °C Deployment • Thermally Enhanced 48-Pin TSSOP DCA • Four Independent Thermally Protected PowerPad ™ Package High-Side Drivers That can Source Deployment or Diagnostic Current Level to APPLICATIONS Each Squib Load • Squib Drivers for Airbag Application • Four Independent Avalanche Voltage and Thermally Protected Low-Side Drivers That Can Sink Deployment or Diagnostic Current Level From Each Squib Load • Each Output Capable of 1.2 A/1.75 A Firing Current for Typical 2 ms/0.5 ms • SPI Slave Interface for Serial Bus Communication with Parity Check • Firing VZx Voltage Range 10 V to 35 V, Transients up to 40 V • Programmable Firing Time up to 8.2 ms • Common Load Current Settings for All Deployment Loops, Using Registers • Individual Firing Current Timer Limit Set for Each Deployment Loop, Using Registers • Firing Current Timer to Monitor Firing Current Over Deployment Time for Each Deployment Loop • Independent Switch Control for Both High- and Low-Side Switches • Diagnostic Mode for Fault Checking • Internal Fault Monitoring for Safe Operation • A Multiplex-able 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 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. 2 PowerPad is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. © 2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Podobny numer części - TPIC71004-Q1 |
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Podobny opis - TPIC71004-Q1 |
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