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NXP MC33975ATEK Switch Detection Module
The MC33975 is an integrated system interface device designed to detect and monitor up to 22 switch contacts, supporting both switch-to-ground and switch-to-battery configurations. It features low quiescent sleep current, programmable wetting currents of 32 mA or 4.0 mA, and a 22-to-1 analog multiplexer for sensor inputs, making it ideal for automotive, industrial, and control applications. The device operates from 5.5 V to 38/40 V, supports SPI communication, and includes features like temperature monitoring, programmable timers, and wake-up functions for efficient power management and system reliability.
NXP MC33975ATEK Switch Detection Module Specifications:
- Power Supply Voltage: 5.5 V to 38/40 V
- SPI Communication: Compatible with 3.3 V/5.0 V protocols, up to 60 MHz
- Switch Inputs: 8 programmable switch-to-battery or switch-to-ground, 14 switch-to-ground only
- Analog Inputs: 22-to-1 multiplexer, buffered output, voltage clamp to VDD
- Wetting Current: Programmable 4.0 mA or 32 mA for switch contacts
- Sleep Mode Current: Vpwp 100 pA, Vpp 20 pA
- Operating Temperature Range: -40°C to 125°C
- Maximum Input Voltage: -14 V to 38/40 V depending on variant
- Thermal Resistance (Junction to Ambient): 1.2°C/W
- Package: 32-PIN SOIC with exposed pad, dimensions 4.7 x 4.7 mm
- Maximum Power Dissipation: 17 W
- ESD Tolerance: 2000 V Human Body Model
- Temperature Monitoring: Active in Normal mode, warning and current reversion at high temps
Buy the Freescale MC33975ATEK – Reliable Switch Detection for Industrial Applications
Discover the MC33975 switch detection interface for robust, low-power monitoring in automotive, industrial, and control systems. Easily integrate with microcontrollers via SPI, with programmable wetting currents, temperature alarms, and wake-up features. Ideal for applications requiring high-reliability switch sensing, sensor power supply, and system control with minimal power dissipation. Purchase this versatile, integrated solution online today and enhance your system’s performance with a compact, efficient, and dependable component.
Buy Freescale MC33975ATEK now and experience unmatched reliability, low power consumption, and versatile switch monitoring for industrial and automotive systems.
Frequently Asked Questions
Where can I buy NXP MC33975ATEK?
You can click on the BUY or RFQ button to purchase MC33975ATEK from an authorized NXP distributor.
How do I troubleshoot issues or seek technical support for part MC33975ATEK?
You can download the MC33975ATEK datasheet or visit the NXP website for support.
Who is the manufacturer of MC33975ATEK?
NXP