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MAX13036
Automotive Contact Monitor and Level Shifter

Automotive Contact Monitor and Level Shifter Monitors Remote Switches and Consumes a Meager 17µA Supply Current


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 316kB)
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Description
The MAX13036 automotive contact monitor and level shifter monitors and debounces eight remote mechanical switches and asserts an interrupt (active-low INT) if a switch changes state. The state of each switch is sampled through an SPI™ interface by reading the status register and any switch can be prohibited from asserting an interrupt by writing to the command register. Four of the switch inputs are intended for ground-connected switches (IN0–IN3), and the other four inputs (IN4–IN7), are programmable in groups of two for either ground-connected or battery-connected switches. Two switch inputs (IN0, IN1) have direct level-shifted outputs (DO0, DO1) to be used for PWM or other timing-based signals.

Switch input thresholds are set to 50% of the voltage applied to BATREF. The threshold hysteresis is set by connecting an external resistor from HYST to ground. The MAX13036 supplies an adjustable wetting current to each closed switch to clean mechanical switch contacts that are exposed to adverse conditions.

The MAX13036 operates with a +6V to +26V battery voltage applied to BAT. A separate +2.7V to +5.5V logic supply input (VL) sets the interface voltage. The MAX13036 is available in a 5mm x 5mm 28-pin TQFN package and operates over the -40°C to +125°C temperature range.

An evaluation kit is available:  MAX13036EVCMAXQU, MAX13036EVKIT  

Key Features   Applications/Uses
  • +6V to +26V Operating Voltage Range
  • +42V Compatibility on BAT
  • Inputs Withstand Reverse Battery
  • Withstands Dynamic Battery Voltage Drop While VL is Present
  • Ultra-Low Operating Current 17µA (typ) in Scan Mode
  • Resistor-Adjustable Switching Hysteresis
  • CMOS-Compatible Logic Outputs (+2.7V min)
  • Built-In Switch Debouncing
  • Interrupt Output
  • Immunity to Transients
  • High Modularity
  • Thermal Protection
  • ±8kV HBM ESD Protection on IN0–IN7 Without External Components
  • Two Inputs (IN0, IN1) Programmable as Direct Outputs
  • Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches

 
  • Body Computers
  • Electric Sunroofs
  • Other Control ECUs
  • Seat Movers
  • Window Lifters

    Diagram
    MAX13036: Functional Diagram
    Functional Diagram

    Evaluation Kits
  • MAX13036EVCMAXQU, MAX13036EVKIT

    Design Guides
  • Automotive (PDF)

    Reliability Reports
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    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    MAX13036 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX13036ATI+  
    Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0028 (PDF)
    Use pkgcode/variation: T2855+8*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13036ATI+T    
    Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0028 (PDF)
    Use pkgcode/variation: T2855+8*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2007-06-05 
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    Document Ref.: 19-0808; Rev 0; 2007-05-17
    This page last modified: 2007-06-29


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