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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 10QFN
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- 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：-
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Overview
The MPQ2483DQ-LF-Z is a programmable frequency WLED driver IC from Monolithic Power Systems. It features a Buck-Boost topology with a single output capable of delivering up to 2.5 A. The device operates within an input voltage range of 4.5 V to 55 V and supports a switching frequency of 250 kHz. Designed for automotive-grade applications, it offers analog and PWM dimming capabilities. The component is housed in a QFN-10 package and functions reliably across a temperature range of -40°C to +125°C.
Feature Summary
- Integrates Buck-Boost topology for versatile LED driving configurations
- Supports both analog and PWM dimming control methods
- Includes comprehensive fault protection mechanisms
Applications
- Automotive white LED lighting systems
- General illumination applications requiring wide input voltage ranges
- Backlighting solutions compatible with automotive standards
Procurement Notes
Verify the current lifecycle status before integration, as this component is marked as Not Recommended for New Designs (NRND). Confirm that the QFN-10 package dimensions align with existing PCB footprints. Ensure supply chain availability accounts for potential long lead times associated with end-of-life products. Validate RoHS compliance documentation for regulatory adherence.
Selection Notes
Select this driver for designs requiring a single-channel solution with high input voltage tolerance up to 55 V. The integrated Buck-Boost architecture simplifies circuit design by handling varying LED string voltages without complex external components. Consider the 2.5 A output capability when sizing thermal management solutions for continuous operation at maximum load conditions.
Part Context
This part belongs to the MPQ2483 series of LED lighting drivers manufactured by Monolithic Power Systems. It is specifically engineered for automotive-grade environments, ensuring reliability under harsh operating conditions. The series focuses on providing efficient power conversion with minimal external component count, supporting various LED configuration topologies.
Replacement Considerations
MPQ2483DQ-LF-Z is designated as Not Recommended for New Designs. No direct public substitute part numbers are confirmed in the provided documentation. Evaluate alternative MPS LED driver families or consult manufacturer resources for suitable replacements.
