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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 2.5A 10QFN
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：55V
- Voltage - Output：-
- Current - Output / Channel：2.5A
- Frequency：250kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-VFDFN Exposed Pad
- Supplier Device Package：10-QFN (3x3)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MPQ2483ADQ-AEC1-LF-Z is an automotive-grade LED lighting driver IC designed for white LED applications. It features a single output capable of delivering up to 2.5A and supports input voltages ranging from 4.5V to 55V. The device utilizes Buck and Buck-Boost topologies with a fixed operating frequency of 250kHz. It offers analog and PWM dimming capabilities and is housed in a QFN-10 package. Certified under AEC-Q100, it operates within a temperature range of -40°C to +125°C.
Feature Summary
- Supports both Buck and Buck-Boost topologies for flexible LED drive configurations
- Provides integrated analog and PWM dimming control functions
- Features an internal power switch rated for 2.5A output current
Applications
- Automotive white LED lighting systems
- Vehicle exterior illumination
- Interior cabin lighting modules
Procurement Notes
Verify the specific suffix 'Z' indicates lead-free compliance and standard reel packaging configuration. Confirm that the 'DQ' designation corresponds to the QFN-10 package variant required for your PCB layout. Ensure the component meets AEC-Q100 qualification standards for your target automotive application tier. Cross-reference the datasheet revision date to confirm compatibility with your design specifications.
Selection Notes
Select this component when designing circuits requiring high input voltage tolerance up to 55V for automotive environments. It is suitable for applications needing precise current regulation via a single-channel driver. Consider the QFN-10 footprint constraints and thermal dissipation requirements associated with the 2.5A output capability. Verify that the fixed 250kHz switching frequency aligns with your electromagnetic interference filtering strategy.
Part Context
This part belongs to the MPQ2483 series of Monolithic Power Systems, specifically tailored for automotive LED drivers. It shares functional similarities with other members like the MPQ2483ADS but differs in package type. The series focuses on providing robust performance for regulated LED currents in demanding vehicular conditions while maintaining compact form factors.
Replacement Considerations
Direct substitutes include the MPQ2483ADS-AEC1-LF-Z, which offers identical electrical characteristics but utilizes a SOIC-14 package instead of QFN-10. Designers must adjust PCB footprints accordingly when swapping between these package variants. No alternative pinouts or functional changes are introduced by the package difference.
