Four Channel Squib Driver IC | NXP Semiconductors

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Four Channel Squib Driver IC

MC33797
NRND
  • This page contains information on a product that is not recommended for new designs.

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The NXP® MC33797 is a four-channel squib driver integrated circuit with a complete squib diagnostic and deployment interface for use in automotive air bag modules.

  • Extensive diagnostics and system control features are incorporated to provide fail-safe operation
  • Contains a SPI-compatible 8-bit interface to allow microprocessor control
  • The device has the capability to be used in a standard four-channel squib driver IC or in a cross coupled state with the high- and low-side squib drivers located on separate squib driver ICs
  • Both high- and low-side output drivers are protected against temporary shorts to battery or ground and the current limit threshold is set by an external resistor

Product Details

Block Diagram

Four Channel Squib Driver IC

Four Channel Squib Driver IC
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Features

  • Four-channel high-side and low-side 2.0 A FET switches
  • Externally adjustable FET current limiting
  • Adjustable current limit range: 0.8 A to 2.0 A
  • Individual channel current limit detection with timing duration measurement, communicated via SPI
  • 8-bit SPI for diagnostics and FET switch activation
  • Diagnostics for high-side safing sensor status
  • Resistance and voltage diagnostics for squibs
  • Squib driver IC capability to be used for cross-coupled driver firing application (allows high- and low-side FET switches to be located on separate squib driver ICs)

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MC33797BPEW
Data Sheet

Not Recommended for New Designs

squib

7

35

4.75

5.25

N true 0 PSPMC33797en 5 Application Note Application Note t789 2 Data Sheet Data Sheet t520 1 Fact Sheet Fact Sheet t523 1 Reference Manual Reference Manual t877 1 en_US 1 1 6.0 Chinese 四通道点火驱动器IC是一款用于汽车安全气囊模块的完整点火诊断和部署接口。 1119462711223707402965zh PSP 1.8 MB None None documents None 1119462711223707402965 /docs/zh/data-sheet/MC33797.pdf 1838485 /docs/zh/data-sheet/MC33797.pdf MC33797 documents N N 2016-10-31 MC33797, Four Channel Squib Driver IC - Data Sheet /docs/zh/data-sheet/MC33797.pdf /docs/zh/data-sheet/MC33797.pdf /docs/zh/data-sheet/MC33797.pdf Data Sheet N Y 980000996212993340 2022-12-07 N zh Feb 10, 2014 980000996212993340 Data Sheet Y N 四通道点火驱动器IC 6.0 English The Four Channel Squib Driver IC is a complete squib diagnostic and deployment interface for use in automotive air bag modules. Extensive diagnostics and system control features are incorporated to provide fail-safe operation. The device contains a serial peripheral interface (SPI) compatible 8-bit interface to allow microprocessor control. 1119462711223707402965 PSP 1.8 MB None None documents None 1119462711223707402965 /docs/en/data-sheet/MC33797.pdf 1838485 /docs/en/data-sheet/MC33797.pdf MC33797 N N 2016-10-31 MC33797, Four Channel Squib Driver IC - Data Sheet /docs/en/data-sheet/MC33797.pdf /docs/en/data-sheet/MC33797.pdf Data Sheet N Y 980000996212993340 2022-12-07 pdf N en Feb 10, 2014 Data Sheet t520 Data Sheet Data Sheet Y N MC33797, Four Channel Squib Driver IC - Data Sheet false en_US en Reference Manual Reference Manual 1 2 3.0 English The NXP Airbag Reference Demonstrator (ARD) is an application demonstrator system which provides an airbag ECU implementation example using NXP standard products and firmware. 1282063920560707766564 PSP 3.9 MB None None documents None 1282063920560707766564 /docs/en/reference-manual/ARDRM.pdf 3924733 /docs/en/reference-manual/ARDRM.pdf ARDRM documents N N 2016-10-31 ARDRM, Airbag Reference Demonstrator Reference Manual /docs/en/reference-manual/ARDRM.pdf /docs/en/reference-manual/ARDRM.pdf Reference Manual N 500633505221135046 2024-01-19 pdf N en Apr 2, 2012 500633505221135046 Reference Manual Y N ARDRM, Airbag Reference Demonstrator Reference Manual Application Note Application Note 2 3 3.0 English This application note provides guidelines for handling and assembly of SOIC package during Printed Circuit Board (PCB) assembly. 10jsBvfc PSP 3.5 MB None None documents None 10jsBvfc /docs/en/application-note/AN2409.pdf 3536520 /docs/en/application-note/AN2409.pdf AN2409 documents N N 2016-10-31 AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note /docs/en/application-note/AN2409.pdf /docs/en/application-note/AN2409.pdf Application Note N 645036621402383989 2024-01-19 pdf N en Oct 21, 2014 645036621402383989 Application Note Y N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 4 1.0 English The MC33781 and MC33784 together constitute NXP Semiconductors's implementation of the Distributed System Interface (DSI) Bus Standard, Version 2.02. 1225311007711718167766 PSP 1.0 MB None None documents None 1225311007711718167766 /docs/en/application-note/AN3670.pdf 1013814 /docs/en/application-note/AN3670.pdf AN3670 documents N N 2016-10-31 AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 /docs/en/application-note/AN3670.pdf /docs/en/application-note/AN3670.pdf Application Note N 645036621402383989 2024-01-19 pdf N en Oct 29, 2008 645036621402383989 Application Note Y N AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 Fact Sheet Fact Sheet 1 5 9 English AIRBAGFS: Freescale is a leading semiconductor supplier for next-generation airbag applications with custom and standard microcontrollers (MCU), analog and sensor products. We offer solutions for point-to-point and bus-based satellite interface architectures with the established distributed system interface (DSI) as well as the emerging peripheral sensor interface (PSI5) architectures. 1208540600963727452987 PSP 366.7 KB None None documents None 1208540600963727452987 /docs/en/fact-sheet/AIRBAGFS.pdf 366678 /docs/en/fact-sheet/AIRBAGFS.pdf AIRBAGFS documents N N 2016-10-31 Automotive Airbag Safety Systems - Fact Sheet /docs/en/fact-sheet/AIRBAGFS.pdf /docs/en/fact-sheet/AIRBAGFS.pdf Fact Sheet N 736675474163315314 2025-02-24 pdf N en Sep 12, 2016 736675474163315314 Fact Sheet Y N Automotive Airbag Safety Systems - Fact Sheet false 0 MC33797 downloads en true 1 Y PSP Application Note 2 /docs/en/application-note/AN2409.pdf 2016-10-31 10jsBvfc PSP 3 Oct 21, 2014 Application Note This application note provides guidelines for handling and assembly of SOIC package during Printed Circuit Board (PCB) assembly. None /docs/en/application-note/AN2409.pdf English documents 3536520 None 645036621402383989 2024-01-19 N /docs/en/application-note/AN2409.pdf AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note /docs/en/application-note/AN2409.pdf documents 645036621402383989 Application Note N en None Y pdf 3.0 N N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 3.5 MB AN2409 N 10jsBvfc /docs/en/application-note/AN3670.pdf 2016-10-31 1225311007711718167766 PSP 4 Oct 29, 2008 Application Note The MC33781 and MC33784 together constitute NXP Semiconductors's implementation of the Distributed System Interface (DSI) Bus Standard, Version 2.02. None /docs/en/application-note/AN3670.pdf English documents 1013814 None 645036621402383989 2024-01-19 N /docs/en/application-note/AN3670.pdf AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 /docs/en/application-note/AN3670.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 1.0 MB AN3670 N 1225311007711718167766 Data Sheet 1 /docs/en/data-sheet/MC33797.pdf 2016-10-31 1119462711223707402965 PSP 1 Feb 10, 2014 Data Sheet Data Sheet The Four Channel Squib Driver IC is a complete squib diagnostic and deployment interface for use in automotive air bag modules. Extensive diagnostics and system control features are incorporated to provide fail-safe operation. The device contains a serial peripheral interface (SPI) compatible 8-bit interface to allow microprocessor control. None /docs/en/data-sheet/MC33797.pdf English 1838485 None Data Sheet 2022-12-07 N /docs/en/data-sheet/MC33797.pdf MC33797, Four Channel Squib Driver IC - Data Sheet /docs/en/data-sheet/MC33797.pdf documents 980000996212993340 Data Sheet N Y en None Y t520 pdf 6.0 N N MC33797, Four Channel Squib Driver IC - Data Sheet 1.8 MB MC33797 N 1119462711223707402965 Fact Sheet 1 /docs/en/fact-sheet/AIRBAGFS.pdf 2016-10-31 1208540600963727452987 PSP 5 Sep 12, 2016 Fact Sheet AIRBAGFS: Freescale is a leading semiconductor supplier for next-generation airbag applications with custom and standard microcontrollers (MCU), analog and sensor products. We offer solutions for point-to-point and bus-based satellite interface architectures with the established distributed system interface (DSI) as well as the emerging peripheral sensor interface (PSI5) architectures. None /docs/en/fact-sheet/AIRBAGFS.pdf English documents 366678 None 736675474163315314 2025-02-24 N /docs/en/fact-sheet/AIRBAGFS.pdf Automotive Airbag Safety Systems - Fact Sheet /docs/en/fact-sheet/AIRBAGFS.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 9 N N Automotive Airbag Safety Systems - Fact Sheet 366.7 KB AIRBAGFS N 1208540600963727452987 Reference Manual 1 /docs/en/reference-manual/ARDRM.pdf 2016-10-31 1282063920560707766564 PSP 2 Apr 2, 2012 Reference Manual The NXP Airbag Reference Demonstrator (ARD) is an application demonstrator system which provides an airbag ECU implementation example using NXP standard products and firmware. None /docs/en/reference-manual/ARDRM.pdf English documents 3924733 None 500633505221135046 2024-01-19 N /docs/en/reference-manual/ARDRM.pdf ARDRM, Airbag Reference Demonstrator Reference Manual /docs/en/reference-manual/ARDRM.pdf documents 500633505221135046 Reference Manual N en None Y pdf 3.0 N N ARDRM, Airbag Reference Demonstrator Reference Manual 3.9 MB ARDRM N 1282063920560707766564 true Y Products

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