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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 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：-
- Frequency：1.35MHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- 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 MPQ2483DQ-AEC1-LF-P is a single-output DC-DC LED driver IC from Monolithic Power Systems, designed for automotive backlighting applications. It integrates an internal switch and supports both buck and boost topologies within a wide input voltage range of 4.5V to 55V. The device delivers a programmable output current up to 2.5A with a fixed switching frequency of 250kHz. It features analog and PWM dimming capabilities and operates across an extended junction temperature range of -40°C to +125°C. Qualified under AEC-Q100 standards, it utilizes a compact 10-VFDFN package with exposed pad.
Feature Summary
- Supports buck and boost converter topologies for flexible LED string configurations
- Integrates internal power MOSFET switch to minimize external component count
- Enables precise brightness control through combined analog and PWM dimming interfaces
- Complies with AEC-Q100 automotive reliability qualification standards
Applications
- Automotive LCD panel backlighting
- Wide input voltage LED lighting systems
- Buck-boost LED driver circuits in vehicles
Procurement Notes
Verify the specific suffix 'DQ' against the official datasheet to confirm pinout and thermal pad configuration. Ensure the ordering part number matches the exact tape-and-reel quantity specified by the manufacturer. Confirm that the AEC-Q100 grade aligns with your vehicle's thermal and reliability requirements before finalizing procurement.
Selection Notes
Select this component when a single-channel driver with integrated switching capability is required for automotive environments. It is suitable for designs needing operation from low battery voltages up to high transient loads. Consider the 250kHz frequency for inductor size trade-offs and verify that the 2.5A current limit meets the target LED array specifications.
Part Context
This part belongs to the MPQ2483 family of automotive-grade LED drivers. It shares functional similarities with other MPS buck-boost drivers but is distinct in its specific voltage ratings and packaging. The 'LF' designation indicates lead-free compliance, while 'P' denotes the specific package variant used in production.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing electrical parameters and pin assignments with alternative MPS or third-party LED drivers.
