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MC33984CHFKR2
MC33984CHFKR2
| Part Number | MC33984CHFKR2 |
|---|---|
| Manufacturer | NXP Semiconductors |
| Category | Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers |
| Description | High-performance dual intelligent high-side power switch IC with dual 4.0 mOhm MOSFET channels, SPI control, programmable overcurrent protection and full fault diagnostics for automotive & heavy industrial loads. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The MC33984CHFKR2 is a fully integrated dual high-side intelligent power switch from NXP, engineered for automotive lighting, body control and high-current industrial load switching. It features two independent 4.0 mOhm MOSFET channels to drive resistive, inductive and capacitive loads with low thermal loss. A built-in SPI interface supports real-time overcurrent threshold configuration and comprehensive fault readback. Integrated overtemperature shutdown, short-circuit limiting and reverse battery protection replace mechanical relays and discrete fuses, delivering long-term reliability for vehicle and automation systems.
Core Advantages
Ultra-Low On-Resistance Topology
Features ultra-low 4.0 mOhm high-side channels that drastically minimize active conduction power losses (I²R), preventing thermal stress and removing the need for bulky external heatsinks.
Advanced SPI Diagnostics and Control
Integrates a standard SPI communication block that enables precision microcontroller commands and provides diagnostic feedback for open load detection, short-circuits, and overtemperature tracking.
Programmable Current Limit Safeguards
Allows engineers to configure variable overcurrent trip levels and down-scaling profiles, ensuring reliable activation of high-inrush current loads like halogen lamps or DC motors without false triggering.
Robust Extreme Automotive Resilience
Built on NXP’s highly ruggedized smart power technology, this chip withstands harsh transients, extreme inductive demagnetization energy discharges, and reverse battery connections securely.
Key Specifications
| Brand | NXP Semiconductors Intelligent High-Side Switch Series |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free / Halogen-Free and Green Eco-Standards Approved |
| EDA/CAD Model | 3D STEP Models, Schematic Symbols, and PCB footprints available upon request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | PQFN-16 (12mm × 12mm) |
| Pin Count | 16 Pins |
| Mounting Type | Surface Mount Technology (SMD/SMT Solder Reflow Assembly) |
| Surface Marking / Silkscreen | MC33984CHFK Marking |
| Number of Outputs | 2 Independent Channels (Dual High-Side Configuration) |
| On-State Resistance (RDS(on)) | 4.0 mOhm typical per channel at room operational conditions |
| Per Channel Continuous Current | 10A continuous load current per channel |
| Per Channel Peak Inrush Current | 15A transient peak current for lamp/motor startup |
| Power Supply Voltage (VPWR) | 6.0V to 27.0V continuous supply voltage capability (survives transient peaks up to 40V) |
| Logic Control Supply Voltage (VDD) | 4.5V to 5.5V for internal MCU and SPI logic circuit |
| Reverse Battery Withstand Voltage | -14V reverse battery protection withstand capability |
| Logic Control Bus | 16-bit Serial Peripheral Interface (SPI) with daisy-chain capability |
| Protection Features | Short-Circuit Protection, Overcurrent Limiting, Overtemperature Shutdown, Overvoltage Clamp, and Under-voltage Lockout |
| AEC-Q100 Grade | AEC-Q100 Grade 1 Automotive Qualified |
| Operating Temperature Window | -40°C to +125°C (Extended Automotive Grade Boundaries) |
| Moisture Sensitivity Level (MSL) | MSL 2A (48 hours, 60°C / 60%RH) |
Typical Applications
- Automotive Exterior High-Beam/Low-Beam Headlamps, Fog Lights, and Complex LED Lighting Arrays
- Vehicle Body Control Modules (BCM), Intelligent Junction Boxes, and Power Distribution Nodes
- 12V Fractional Horsepower DC Electric Motors, Electronic Actuators, and Under-the-Hood Cooling Fans
- Heavy Industrial Programmable Logic Controller (PLC) Output Driving Relays and Solenoid Switch Drivers
- Rugged Agricultural Machinery Controllers, Construction Vehicle Systems, and Marine Power Management
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your currently available stock of the MC33984CHFKR2 100% genuine and original?
A: Yes, we guarantee that all MC33984CHFKR2 power switch ICs in our inventory are 100% brand-new, factory-original parts directly from NXP Semiconductors. Each shipment lot passes through strict incoming quality management verification and is dispatched in secure anti-static protective moisture-barrier bags to preserve product integrity during transit.
Q2: What do the “R2” suffix characters represent at the end of this NXP part number?
A: The trailing “R2” designation indicates that the product is supplied in large-format 13-inch tape-and-reel packaging configurations. This is specifically optimized to facilitate seamless pick-and-place component handling during high-volume, automated surface-mount (SMT) factory assembly lines.
Q3: How does the MC33984CHFKR2 safely manage highly capacitive loads like filament light bulbs or large DC motors?
A: High-inrush capacitive or lamp loads initially behave almost like short circuits. To handle this, the MC33984CHFKR2 incorporates a programmable multi-level overcurrent threshold profile and a built-in phase delay system. This design prevents premature shutdown trips during initial turn-on spikes, allowing the load to stabilize safely while maintaining full short-circuit protection.
Q4: How can our physical engineering group secure the full register configuration manuals or request tiered volume quotes?
A: Please complete our Quick Inquiry web form found directly on this product page, noting your target quantities and specific project metrics. Our specialized power distribution interface support desk will review your submission and reply with full data assets and custom commercial pricing tables within 24 hours.
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