MP4601EF-LF-P

Overview

The MP4601EF-LF-P is a single-output LED lighting driver IC from Monolithic Power Systems, designed for partial power WLED applications in TV backlighting. It supports both boost and buck topologies with an input voltage range of 4.5 V to 75 V. The device features a switch current capacity of 2.5 A and operates at a frequency of 280 kHz. It is housed in a 16-TSSOP-EP package and functions within a temperature range of -20°C to +85°C.

Feature Summary

• Supports both step-down (buck) and step-up (boost) DC-DC converter topologies for flexible LED driving configurations.
• Enables precise light control through integrated analog and PWM dimming capabilities.
• Designed specifically for partial power White LED (WLED) backlighting applications in television displays.

Applications

• TV backlighting systems
• Partial power WLED driver circuits
• Buck and boost LED regulation modules

Procurement Notes

Verify the specific suffix (LF-P vs LF-Z) to confirm packaging type, as distribution listings may vary between reel and cut tape formats. Confirm that the component meets RoHS standards if required by your assembly process. Note that this part is designated as NRND (Not Recommended for New Designs); ensure that existing supply chains can support long-term production needs or consider alternative future-proof solutions.

Selection Notes

Select this component when a single-channel driver capable of handling high input voltages up to 75 V is required for TV backlighting. It is suitable for designs needing both buck and boost functionality within one IC. Ensure the thermal management strategy accommodates the TSSOP-EP package limitations for the intended power dissipation levels.

Part Context

This IC belongs to the MPS LED driver family focused on display backlighting. It serves as a specialized solution for partial power architectures, distinguishing itself from full-power drivers by its specific integration for WLED strings in consumer electronics like televisions.

Replacement Considerations

MPS recommends the MP4603 for new designs. Verify pin compatibility and electrical specifications before substituting with other MPS models or competitors' parts.

FAQ

What dimming methods are supported by the MP4601EF-LF-P?

The device supports both analog and PWM dimming methods for controlling LED brightness.

Is this component suitable for new design projects?

No, it is marked as NRND (Not Recommended for New Designs). MPS recommends using the MP4603 for new implementations.