16-Output Switch with SPI and PWM Control

MC33999 Active

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The NXP® MC33999 is a 16-output low-side switch with a 24-bit serial input control, designed for a variety of applications including inductive, incandescent, and LED loads.

  • The SPI provides both input control and diagnostic readout
  • Eight parallel inputs are also provided for direct PWM control of 8 dedicated outputs
  • An output programmable PWM input provides PWM of any combination of outputs
  • A dedicated reset input provides the ability to clear all internal registers and turn all outputs off
  • Interfaces with MCUs and compatible with both 3.3 V and 5 V CMOS logic levels
  • Serves as a bus expander and buffer with fault management features, reducing the MCU fault management burden

Product Details

Block Diagram

MC33999 Low Side Switch Block Diagram

NXP<sup>&#174;</sup> MC33999 Low Side Switch Block Diagram
Get diagram PDF

Features

System Features

  • RDS(ON) @ 25 °C 0.55 Ohm
  • Operating Voltage, VPWR 5 V – 27 V
  • Operating Voltage, SOPWR 3.1 V – 5.5 V
  • Outputs current limited (0.9 A) and voltage clamped (50 V) for switching incandescent and inductive loads
  • Output independent over temperature shutdown
  •  Programmed PWM of any combination of outputs plus parallel input control of eight outputs
  • Output ON short-to-VBAT and OFF short-to-ground/open detection
  • OFF open load detection current can be disabled for sensitive LED applications
  • SPI diagnostic reporting
  • Load current(IL) 0.35 A (Typ)
  • 16 Channels
  • Drain-to-Source on resistance 550000 mOhm RDS(ON) (Typ)
  • Load supply voltage 0 V (Min), 40 V (Max)

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N true 0 PSPMC33999en 4 Application Note Application Note t789 2 Data Sheet Data Sheet t520 1 Selector Guide Selector Guide t528 1 en_US 2 1 6.0 English The 33999 is a 16-output low-side switch with a 24-bit serial input control. It is designed for a variety of applications including inductive, incandescent, and LED loads. The Serial Peripheral Interface (SPI) provides both input control and diagnostic readout. Eight parallel inputs are also provided for direct Pulse Width Modulation (PWM) control of eight dedicated outputs. Additionally, an output-programmable PWM input provides PWM of any combination of outputs. A dedicated reset input provides the abilit 1074786732983710562214 PSP 497.7 KB None None documents None 1074786732983710562214 /docs/en/data-sheet/MC33999.pdf 497669 /docs/en/data-sheet/MC33999.pdf MC33999 N N 2004-01-22 MC33999, 16-Output Switch with SPI and PWM Control - Data Sheet /docs/en/data-sheet/MC33999.pdf /docs/en/data-sheet/MC33999.pdf Data Sheet N Y 980000996212993340 2022-12-07 pdf N en Feb 11, 2014 Data Sheet t520 Data Sheet Data Sheet Y N MC33999, 16-Output Switch with SPI and PWM Control - Data Sheet 2 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 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 Y 645036621402383989 2024-01-19 pdf N en Oct 21, 2014 Application Note t789 Application Note Application Note Y N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note false en_US en Application Note Application Note 1 3 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 Selector Guide Selector Guide 1 4 13 English For system designers that want more efficient motor operation with variable speed and sensorless control, NXP offers H-Bridge, brushed and brushless DC motor drivers required to complete system design. 1440175950835712338186 PSP 197.6 KB None None documents None 1440175950835712338186 /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf 197574 /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf MOTORDRIVERFLYR documents N N 2016-10-31 Motor Driver – Selector Guide /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf Selector Guide N 553557935274807777 2024-08-11 pdf N en Feb 4, 2021 553557935274807777 Selector Guide Y N Motor Driver – Selector Guide false 0 MC33999 downloads en true 1 Y PSP Application Note 2 /docs/en/application-note/AN3670.pdf 2016-10-31 1225311007711718167766 PSP 3 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 /docs/en/application-note/AN2409.pdf 2016-10-31 10jsBvfc PSP 2 Oct 21, 2014 Application Note 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 3536520 None Application Note 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 Y en None Y t789 pdf 3.0 N N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 3.5 MB AN2409 N 10jsBvfc Data Sheet 1 /docs/en/data-sheet/MC33999.pdf 2004-01-22 1074786732983710562214 PSP 1 Feb 11, 2014 Data Sheet Data Sheet The 33999 is a 16-output low-side switch with a 24-bit serial input control. It is designed for a variety of applications including inductive, incandescent, and LED loads. The Serial Peripheral Interface (SPI) provides both input control and diagnostic readout. Eight parallel inputs are also provided for direct Pulse Width Modulation (PWM) control of eight dedicated outputs. Additionally, an output-programmable PWM input provides PWM of any combination of outputs. A dedicated reset input provides the abilit None /docs/en/data-sheet/MC33999.pdf English 497669 None Data Sheet 2022-12-07 N /docs/en/data-sheet/MC33999.pdf MC33999, 16-Output Switch with SPI and PWM Control - Data Sheet /docs/en/data-sheet/MC33999.pdf documents 980000996212993340 Data Sheet N Y en None Y t520 pdf 6.0 N N MC33999, 16-Output Switch with SPI and PWM Control - Data Sheet 497.7 KB MC33999 N 1074786732983710562214 Selector Guide 1 /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf 2016-10-31 1440175950835712338186 PSP 4 Feb 4, 2021 Selector Guide For system designers that want more efficient motor operation with variable speed and sensorless control, NXP offers H-Bridge, brushed and brushless DC motor drivers required to complete system design. None /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf English documents 197574 None 553557935274807777 2024-08-11 N /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf Motor Driver – Selector Guide /docs/en/product-selector-guide/MOTORDRIVERFLYR.pdf documents 553557935274807777 Selector Guide N en None Y pdf 13 N N Motor Driver – Selector Guide 197.6 KB MOTORDRIVERFLYR N 1440175950835712338186 true Y Products

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