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NXP MC33972TEWR2 Multi-Switch Interface
The MC33972 is a robust multi-switch detection interface designed for automotive and industrial applications. It detects up to 22 switch contacts, providing switch status via SPI interface and supporting analog input readings through a 22-to-1 multiplexer. It features low quiescent current in sleep mode, programmable wetting currents, and wake-up on change of state. Its wide operating voltage range, temperature monitoring, and programmable settings make it suitable for sensor power supply, switch monitoring, and system control solutions, simplifying complex wiring and reducing discrete components.
NXP MC33972TEWR2 Multi-Switch Interface Specifications:
- Operating Voltage: 5.5 V to 26 V (fully operational), 5.5 V to 40 V (quasi-functional)
- Switch Input Voltage Range: -14 V to 40 V, 38 V maximum
- Current Consumption: Normal mode - 20 to 4.0 mA, Sleep mode - 40 to 70 µA
- SPI Interface: 3.3 V/5.0 V compatible, clock up to 6 MHz
- Switch Inputs: 8 programmable (switch-to-battery or switch-to-ground), 14 switch-to-ground inputs
- Analog Multiplexer: 22-to-1, buffered output at AMUX pin
- Wetting Current: Programmable to 16 mA or 2.0 mA, timer enabled/disabled
- Temperature Monitoring: Active in normal mode, thermal flag indicates overheating
- Modes: Normal and Sleep, wake-up on switch change, programmable timers and interrupt features
- Physical Package: 32-pin SOICW with exposed pad, case dimensions available externally
- Maximum ratings: VDD up to 7.0 V, VPWR up to 50 V, Human Body Model ESD 2000 V
- Operating Temperature: -40°C to 125°C
- Power Dissipation: 17 W at 25°C
- Electrical ratings include input voltage thresholds, logic levels, input capacitance, and pulse characteristics.
Buy the Freescale MC33972 U–2013 Reliable Switch Detection for Industrial Applications
Enhance your automation system with the MC33972 multi-switch detection interface. Designed for automotive, industrial, and control applications, it supports up to 22 switch contacts, analog inputs, and low-power sleep mode. Programmable wetting currents, wake-up on change, temperature monitoring, and flexible SPI control make it ideal for sensor power supply, switch monitoring, and system control, reducing discrete components and simplifying wiring. Purchase online now to integrate this high-performance, reliable switch detection solution into your engineering projects.
Order your Freescale MC33972 sleep/wake intelligent switch detection device today and enhance your industrial systems with low power, high reliability, and flexible configuration.
Frequently Asked Questions
Where can I buy NXP MC33972TEWR2?
You can click on the BUY or RFQ button to purchase MC33972TEWR2 from an authorized NXP distributor.
How do I troubleshoot issues or seek technical support for part MC33972TEWR2?
You can download the MC33972TEWR2 datasheet or visit the NXP website for support.
Who is the manufacturer of MC33972TEWR2?
NXP