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MC33984CHFK
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:2 16QFN
- Series：-
- Mfr：NXP USA Inc.
- Package：Tray
- Switch Type：General Purpose
- Number of Outputs：2
- Ratio - Input:Output：1:02
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：SPI
- Voltage - Load：6V ~ 27V
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 5.5V
- Current - Output (Max)：-
- Rds On (Typ)：4mOhm (Max)
- Input Type：-
- Features：Slew Rate Controlled, Watchdog Timer
- Fault Protection：Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Supplier Device Package：16-PQFN (12x12)
- Package / Case：16-PowerQFN
- Grade：-
- Qualification：-
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Overview
The MC33984CHFK is a dual intelligent high-current self-protected silicon high-side switch manufactured by NXP USA Inc. It features a typical on-resistance (Rds(on)) of 4.0 mOhm per channel, designed to replace electromechanical relays and fuses in power management applications. The device integrates protective features for direct control of high-power loads in vehicle systems.
Feature Summary
- Dual output configuration for independent load control
- Integrated self-protection mechanisms against fault conditions
- Low on-resistance design for efficient power distribution
Applications
- Automotive high-power load switching
- Vehicle system power management
- Replacement for electromechanical relays
Procurement Notes
Verify component status as the MC33984CHFK is listed as obsolete and no longer manufactured by NXP USA Inc. Confirm availability through authorized distributors or secondary markets if procurement is required. Ensure compatibility with existing designs before sourcing end-of-life components.
Selection Notes
Select this component for applications requiring dual-channel high-current switching with integrated protection. Consider its low on-resistance for efficiency. Evaluate alternative active parts due to obsolete status. Verify package compatibility with 16-PQFN (12x12) footprint requirements during design integration.
Part Context
This part belongs to the MC33984 series of intelligent load drivers. It is designed for automotive environments where reliability and fault protection are critical. The device consolidates functions previously handled by discrete components, reducing board space and complexity in power distribution networks.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. As the MC33984CHFK is obsolete, engineers should consult NXP for current equivalent recommendations or perform a full redesign using active series components.
