Devices; Board Connections - STMicroelectronics MB467 User Manual

UM0178
1.2

Devices

The MB467 Airbag Eva Board mounts the following devices:
L9658 octal squib driver and quad sensor interface ASIC for safety application
– 64-pin TQFP version
– 8 deployment drivers
– interface with 4 satellite sensors
– support Manchester protocol for satellite sensors
– supports for variable bit rate detection
– SPI interface
– Hall effect sensor support on satellite channels 3 and 4
L9654 quad squib driver and dual sensor interface ASIC for safety application
– 48-pin TQFP version
– 4 deployment drivers
– interface with 2 satellite sensor
– support Manchester protocol for satellite sensor
– supports for variable bit rate detection
– SPI interface.
L4998 Safety Power Regulator
– boost regulator able of sourcing up to 90 mA
– buck regulator operating in Continuous Conduction Mode able of sourcing up to
250mA output current
– one 5.0 V linear regulator (Vcc) able of sourcing up to 200 mA output current
– current limit and thermal shutdown protection
1.3

Board connections

The board provides the connections listed below:
CPU board Connector to microcontroller I/O, PWM, SPI and power supply
Connectors for 6 satellites or 4 satellites and 2 Hall sensors, real or simulated
Connectors for 12 squibs, real or simulated
On board standard 100 mils prototyping area
Main power supply 12V
1 Introduction
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