Power Switch ICs – Power Distribution 40V 1.2A HIGH SIDE DVR

NCV8461DR2G – 40V 1.2A Automotive High-Side Power Switch – onsemi

The NCV8461DR2G from onsemi is an automotive-grade high-side power switch IC designed for robust power distribution in demanding environments. Engineered for reliability, this power management solution features integrated fault protection, low Rds(on), and AEC-Q100 qualification—ensuring optimal performance in automotive and industrial systems. PCX supplies this critical component with guaranteed stock and rapid shipping.

Key Features

• 40V Load Voltage Rating with 5V–34V operational range
• 1.2A Continuous Current Output (2A peak capability)
• Low Rds(on): 350mΩ maximum resistance
• Automotive Qualified: AEC-Q100 compliant
• Robust Protection: Fixed current limiting, over-temperature, and over-voltage safeguards
• Auto-Restart Function for fault recovery
• CMOS Input Interface with On/Off control

Technical Specifications

This single-channel N-channel high-side switch operates across a -40°C to 150°C junction temperature range. Its 1:1 input/output ratio simplifies integration, while the surface-mount 8-SOIC package (3.90mm width) suits space-constrained PCB designs. The IC requires no separate supply voltage (Vcc/Vdd), reducing system complexity.

Typical Applications

• Automotive ECUs (Engine Control Units) and lighting systems
• Industrial load switching and motor controls
• Power distribution modules in battery management systems
• Protection circuits for USB ports and peripherals
• HVAC and actuator controls

About onsemi

onsemi (ON Semiconductor) is a global leader in power management and sensor technologies, renowned for innovation in automotive, industrial, and cloud-power solutions. With over 25 years of expertise, onsemi holds a top-tier position in the semiconductor industry, holding key certifications including IATF 16949 for automotive quality management.

The company’s commitment to sustainability and cutting-edge R&D ensures components like the NCV8461 series meet stringent reliability standards. onsemi’s products are trusted by Fortune 500 manufacturers for mission-critical applications, backed by comprehensive technical support and rigorous testing protocols.

About Power Distribution Switches

Power distribution switches are integrated circuits that manage and protect electrical loads by controlling current flow between power sources and downstream components. They serve as intelligent “gatekeepers,” replacing mechanical relays with faster, more efficient solid-state switching while integrating critical safeguards against electrical faults.

In modern electronics, these ICs prevent system damage from short circuits, inrush currents, and thermal overloads. Their compact design and advanced features—like auto-restart and low standby power—make them essential for automotive systems, industrial automation, and portable devices where space efficiency and reliability are paramount.

Packaging Options

Available in industry-standard formats: Tape & Reel (TR), Cut Tape (CT), or Digi-Reel®. Specify your preference when ordering.

FAQs

Question: Is this IC suitable for 12V automotive systems?

Answer: Yes, its 5V–34V load range covers 12V automotive applications, including load-dump scenarios.

Question: Does it require external heat sinking?

Answer: Typically not—the SOIC-8 package and 350mΩ Rds(on) minimize heat generation under rated loads.

Question: What does “auto-restart” functionality provide?

Answer: It automatically attempts to resume operation after a fault (e.g., thermal shutdown), reducing manual intervention.

Question: Can I use this for USB power delivery?

Answer: Absolutely—its current limiting and OVP protect USB ports from shorts and overloads.

Question: Is the NCV8461DR2G RoHS compliant?

Answer: Yes, it meets all current RoHS 3 standards.

Question: How does a high-side switch differ from low-side?

Answer: High-side switches sit between the power source and load, simplifying ground-referenced diagnostics and improving safety.

Product images are representational. Refer to the datasheet for exact specifications.

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