CG903
Integrated airbag system IC
Application & Technical Summary
CG903 is essential to realize a compact, dual-chip airbag control unit only consisting of a microcontroller and system IC.
The IC provides 12 firing loops and four PSI5 sensor interfaces.
CG903 unites all peripheral system functions of an airbag control unit:
- Power supply for microcontroller, onboard sensors, and energy reserve
- Digital interfaces for peripheral sensors
- Safety controller for microcontroller monitoring
- Airbag deployment firing loops
Product benefits
- Supports a wide range of microcontroller families
- ISO-compliant design
- Chip variants available from for system configurations from entry level to high-end
- Simple design-in due to hardware and software compatibility
Sophisticated safety concept
and extensive diagnostic routines
Technical Features
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Type
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Integrated airbag system IC
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Package
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TQFP128_ePad
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Features
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Firing loops
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12 × 5 firing modes (incl. 1.2 A, 1.75 A and LEA)
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Peripheral sensor interfaces
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4 × PSI5 (V1.3)
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Analog interfaces
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10 x AIN, 2 x AIO
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Interfaces
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SPI, 32-bit (3.3 V), K-Line/LIN
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VDD typ. [V]
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3.3
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VVAS typ. [V]
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6.7
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VVZP typ. [V]
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14
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VVER typ. [V]
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23.75 or 33 (programmable)
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Tj min [°C]
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-40°C
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Tj max [°C]
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150°C
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TQFP128 _ePad (14 × 14 mm)
