12 V Multipurpose Low RDSON eXtreme Switch

MC12XS2

The NXP® 12XS2 eXtreme switch family consists of very low RDSON devices in single or dual high side configuration to replace electromechanical relays or discrete devices in power management applications and DC motor control.

  • Designed for harsh environments and includes self-recovery features
  • Suitable for loads with high inrush current, as well as motors and all types of resistive and inductive loads
  • Programming, control and diagnostics are implemented via the serial peripheral interface
  • A dedicated parallel input is available for alternate and pulse-width modulation control of the output
  • Packaged in a power enhanced 16-lead PQFN, 12x12 mm package

Product Details

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Block Diagram

Simplified Application Drawing

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Features

MC33981

  • Operating voltage range from 6.0 V to 27 V, with sleep current < 5.0 μA, extended mode down to 4.5V
  • 40 A continuous current capability
  • PWM capability up to 60 kHz, with a duty cycle from 5% to 100%
  • Slew-rate control with an external capacitor
  • Overcurrent and overtemperature protection, undervoltage shutdown, and fault reporting
  • Reverse battery protection
  • Gate drive signal for external low side N-channel MOSFET with protection features
  • Output current monitoring
  • Temperature feedback

MC33982/984/988

  • Operating voltage range of 6.0 V to 20 V, with sleep current < 5.0 μA, extended mode from 4.0 V to 28 V
  • Current capability up to 40 A steady state
  • 8.0 MHz 16-bit 3.3 V and 5.0 V SPI control and status reporting with daisy-chain capability
  • Programmable overcurrent trip level and overtemperature protection, undervoltage shutdown, and fault reporting
  • Enhanced -16 V reverse battery protection
  • Output current monitoring
  • Watchdog and configurable Fail-safe mode by hardware
    • Compatible PCB footprint and SPI software driver among the family These products are included in NXP®.s product longevity program with assured supply for a minimum of 15 years after launch

Comparison Table

12XS2

Product Datasheet # of outputs RDSon (mOhm) Package Suggested tool
MC33981 Datasheet Single 1 x 4.0 PQFN 16 -
MC33982 Datasheet Single 1 x 2.0 PQFN 16 KIT33982CEVBE
MC33984 Datasheet Dual 2 x 4.0 PQFN 16 KIT33984CEVBE
MC33988 Datasheet Dual 2 x 8.0 PQFN 16 KIT33988CEVBE

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