HVLED002TR

Overview

The HVLED002TR is a high-performance current mode LED controller IC manufactured by STMicroelectronics, designed for off-line or DC-to-DC fixed frequency applications. It operates within a supply voltage range of 7V to 25V and features an internally trimmed oscillator guaranteed at 250 kHz, with current mode operation capability up to 500 kHz. The device provides one output channel in an 8-SOIC package, supporting a junction temperature range from -40°C to +150°C. It includes undervoltage lockout, a precision reference, and a low-output-stage totem pole driver suitable for N-channel MOSFETs.

Feature Summary

• Implements fixed frequency current mode control schemes for LED drivers using an internally trimmed oscillator.
• Features cycle-by-cycle latching PWM current limiting and undervoltage lockout with hysteresis for robust protection.
• Utilizes a high-current totem pole output stage optimized for driving N-channel MOSFETs with low off-state impedance.

Applications

• Off-line LED lighting driver implementations
• DC-to-DC LED driver topologies
• General-purpose LED illumination systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type, as the TR suffix indicates tape and reel configuration. Ensure compatibility with the required operating temperature range and input voltage specifications before finalizing procurement. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component for designs requiring precise duty cycle control via a trimmed oscillator without internal switching elements. Consider the 8-SOIC package constraints and the requirement for external N-channel MOSFETs. Evaluate the 250 kHz base frequency against thermal and efficiency requirements for the target LED load.

Part Context

The HVLED002 belongs to a family of LED driver controllers focused on non-isolated power conversion. It serves as a core control element in buck-based LED architectures, distinguishing itself by offering current mode regulation rather than voltage regulation. This positions it specifically for constant current LED applications where precise dimming and stability are critical.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official STMicroelectronics resources for potential cross-references or newer generation equivalents that may offer updated packaging or performance characteristics.