MAX13036

NOT RECOMMENDED FOR NEW DESIGNS

Contact Monitor and Level Shifter

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

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • +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

The MAX13036 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.

Applications

  • Control ECUs
MAX13036
Contact Monitor and Level Shifter
MAX13036: Functional Diagram
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Documentation

Data Sheet 1

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Evaluation Kits

MAX13036EVKIT

MAX13036 Evaluation Kit/Evaluation System

Buy Now View Details

Features and Benefits

  • 7V to 27V Operating Voltage Range
  • Proven PCB Layout
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Fully Assembled and Tested
  • EV System: USB PC Connection

Product Details

The MAX13036 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the capabilities of the MAX13036 contact monitor. The MAX13036 EV kit also includes Windows® 98SE/2000/XP-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX13036.

The MAX13036 evaluation system (EV system) includes a MAX13036 EV kit and a Maxim CMAXQUSB serial-interface board.

The CMAXQUSB board connects to a PC's USB port and allows the transfer of SPI commands to the MAX13036 EV kit.

Applications

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

MAX13036EVCMAXQU

MAX13036 Evaluation Kit/Evaluation System

Buy Now View Details

Features and Benefits

  • 7V to 27V Operating Voltage Range
  • Proven PCB Layout
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Fully Assembled and Tested
  • EV System: USB PC Connection

Product Details

The MAX13036 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the capabilities of the MAX13036 contact monitor. The MAX13036 EV kit also includes Windows® 98SE/2000/XP-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX13036.

The MAX13036 evaluation system (EV system) includes a MAX13036 EV kit and a Maxim CMAXQUSB serial-interface board.

The CMAXQUSB board connects to a PC's USB port and allows the transfer of SPI commands to the MAX13036 EV kit.

Applications

  • Body Computers
  • Electric Sunroofs
  • Other Control ECUs
  • Seat Movers
  • Window Lifters
MAX13036EVKIT
MAX13036 Evaluation Kit/Evaluation System
MAX13036EVCMAXQU
MAX13036 Evaluation Kit/Evaluation System

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