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MC33291LDW
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:8 24SOIC
- Series：-
- Mfr：NXP USA Inc.
- Package：Tube
- Switch Type：General Purpose
- Number of Outputs：8
- Ratio - Input:Output：1:08
- Output Configuration：Low Side
- Output Type：N-Channel
- Interface：SPI
- Voltage - Load：9V ~ 26.5V
- Voltage - Supply (Vcc/Vdd)：2.5V ~ 3.5V
- Current - Output (Max)：500mA
- Rds On (Typ)：550mOhm
- Input Type：-
- Features：-
- 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：24-SOIC
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Grade：-
- Qualification：-
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Overview
The MC33291LDW is an eight-output switch featuring a Serial Peripheral Interface (SPI) for control. It utilizes SMARTMOS technology to provide low on-resistance and efficient power dissipation for driving resistive and inductive loads. The device integrates comprehensive protection mechanisms, including over-current, over-temperature, and over/under-voltage safeguards for both the load and the integrated circuit.
Feature Summary
- Eight-channel open-drain MOSFET output switching capability
- Serial Peripheral Interface (SPI) digital control input
- Integrated SMARTMOS technology for low power dissipation
- Built-in protection against over-current, over-temperature, and voltage anomalies
Applications
- Automotive engine management systems
- Valve driver circuits
- General industrial load control applications
Procurement Notes
Verify the specific suffix 'LDW' against official NXP documentation to confirm package type and temperature range specifications. Ensure compatibility with existing SPI bus configurations and voltage levels before procurement. Cross-reference the orderable part number with current product longevity programs to confirm supply stability.
Selection Notes
Select this component when an eight-channel low-side switching solution with serial interface control is required. It is suitable for applications demanding integrated load protection and high efficiency. Consider thermal management requirements based on the specific load characteristics and ambient operating conditions defined in the datasheet.
Part Context
This component belongs to NXP's portfolio of automotive-grade low-side switches designed for robust engine control and general load management. It complements other system basis chips and microcontrollers by providing reliable actuator driving capabilities within complex embedded automotive architectures.
Replacement Considerations
Check for form, fit, and function compatible alternatives listed in NXP's product change notifications or longevity migration guides. Verify pinout and electrical parameter equivalence if considering substitutes from other manufacturers.
