TPIC71002-Q1

TPIC71002-Q1 www.ti.com Dual Channel Squib Drivers Check for Samples: TPIC71002-Q1 SLIS139 – MARCH 2011 FEATURES 1 Two-Channel Squib Drivers For Airbag Application Loop Diagnostics Monitor and Reporting Two Logic Inputs Providing Independent Safety Logic for Enabling/Disabling Deployment Two Independent Thermally Protected High-Side Drivers that Can Source Deployment or Diagnostic Current Level to Each Squib Load Two 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 10V to 35V, 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 HighAnd Low-Side Switches 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 t...