MAX13362 Datasheet | Maxim Integrated

19-4464; Rev 0; 2/09 .. KIT ATION EVALU E L B A AVAIL 24-Channel Automotive Switch Monitor General Description Features - 9V to 18V Operating Voltage Range with Full Performance - Fully Functional Range of 5.5V to 28V - Switch Inputs Withstand 27V - Switch Inputs Withstand Reverse Battery - Ultra-Low Operating Current 100µA (typ) in Scan Mode - Built-In Switching Hysteresis - Built-In Switch Deglitching - CMOS-patible Logic Outputs Down to 3.0V - Interrupt Output to Processor - Configurable Wetting Current (0m A, 5m A, 10m A, or 15m A) for Each Switch Input - AEC-Q100 Qualified The MAX13362 is a 24-channel automotive contact monitor designed as an interface between mechanical switches and low-voltage processors or other logic circuits. The IC operates over a voltage range of 5.5V to 28V, and withstands voltages up to 40V. It protects lowvoltage circuitry from high voltages and reverse battery conditions. The MAX13362’s low-current operation under all operating conditions makes it suitable for use in electronic control units (ECUs) that are connected directly to the automotive battery. It has an adjustable scan mode that significantly reduces the current drawn in key-off. The MAX13362 Features an SPI™ interface to monitor the switch status and set the device configuration. Multiple MAX13362s can be cascaded to support any multiple of 24 switches. The MAX13362 is available in a 6mm x 6mm, 40-pin thin QFN package and operates over the -40°C to +125°C temperature range. Applications Automotive Body Controllers Automotive Door Modules Automotive Smart Junction Boxes PART MAX13362ATL/V+ Ordering Information TEMP RANGE -40°C to +125°C PIN-PACKAGE 40 Thin QFN-EP- (6mm x 6mm) - EP = Exposed pad. +Denotes a lead(Pb)-free/Ro HS-pliant package. /V Denotes an automotive qualified part. Typical Application Circuit TOP VIEW N.C. N.C. IN6 IN5 24 SWITCHES, 1 BATTERY-CONNECTED BATTERY 9V TO 18V Pin Configuration IN4 IN3 IN2 IN1 IN0 22 SD...