SP7685ER-L/TR

Overview

The SP7685ER-L/TR is a single-channel LED lighting driver IC manufactured by MaxLinear. It utilizes a buck-boost charge pump topology to regulate current for high-power LEDs. The device operates within an input voltage range of 2.7 V to 5.5 V and supports PWM dimming. It provides a high-level output current of up to 2 A and a low-level output current of 400 mA, delivering approximately 1 W of output power. The component is housed in a 10-pin DFN (3x3 mm) package and functions as a DC-DC switched capacitor regulator.

Feature Summary

• Integrates a buck-boost charge pump topology for efficient LED current regulation across varying input voltages.
• Supports Pulse Width Modulation (PWM) dimming for precise brightness control applications.
• Provides stable drive current suitable for driving single high-power LEDs such as 1W sources.

Applications

• Mobile phone LED flashlights
• Compact LED lighting circuits requiring small form factors
• High-power LED drivers using Luxeon I or PWF1 type light sources

Procurement Notes

Verify the specific suffix 'L/TR' against official MaxLinear documentation to confirm packaging and revision details. Note that this component may be subject to discontinuation; consult the latest End-of-Life notifications and distributor availability status before finalizing design-in decisions.

Selection Notes

Select this component for designs requiring a compact solution for driving single high-power LEDs from low-voltage sources. Ensure the application input voltage remains within the 2.7 V to 5.5 V range. Consider the 10-DFN package constraints for thermal management and PCB layout requirements.

Part Context

The SP7685 belongs to the MaxLinear SP7685 series of LED drivers. It is part of the company's portfolio focusing on power management and interface solutions acquired through entities like Exar. This specific model targets portable electronics where space efficiency and high current density are critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing circuit designs if considering alternative components due to the product's discontinued status.

FAQ

What is the maximum output current capability of the SP7685ER-L/TR?

The device supports a high-level output current of up to 2 A and a low-level output current of 400 mA.

Does the SP7685ER-L/TR support dimming functionality?

Yes, the IC supports Pulse Width Modulation (PWM) dimming for controlling LED brightness.