LYT0004D-TL

LED Driver IC Overview

The LYT0004D-TL is an LED lighting driver IC from the LYTSwitch-0 series by Power Integrations. It operates with a wide input voltage range of 85 VAC to 308 VAC and supports a maximum power supply voltage of 308 V. The device delivers an output current of 139 mA at a fixed operating frequency of 66 kHz. It features a maximum quiescent supply current of 173 uA and functions within a temperature range of -40°C to +150°C. The component is housed in an SO-8C-7 package and utilizes SMD/SMT installation.

LED Driver IC Feature Summary

• Integrates high-voltage switched capacitor technology for compact design
• Provides constant current regulation for LED loads
• Includes internal startup circuitry to reduce external component count

LED Driver IC Applications

• LED lighting drivers
• General purpose isolated power supplies

LED Driver IC Procurement Notes

Verify the specific suffix TL indicates reel packaging when ordering. Confirm the SO-8C-7 package variant matches your PCB footprint requirements. Check RoHS compliance documentation for regulatory adherence. Ensure the 139 mA output specification aligns with your LED string configuration. Validate the 66 kHz switching frequency against EMI constraints.

LED Driver IC Selection Notes

Select this component for applications requiring integrated high-voltage switching and constant current control. The LYTSwitch-0 series is suitable for low-power LED drivers where minimal external components are desired. Consider the 173 uA supply current for standby power efficiency requirements. The wide input voltage range supports universal AC line operation without additional sensing circuits.

LED Driver IC Part Context

This part belongs to the LYTSwitch-0 family, which combines a high-voltage MOSFET with a controller in a single package. The series is designed for offline flyback converters. The LYT0004D-TL specifically targets LED lighting applications with its constant current output capability. It replaces discrete solutions by integrating protection features and timing controls.

LED Driver IC Replacement Considerations

LYT0002D-TL offers a lower output current option within the same series. LYT0006D-TL provides higher output current capacity. Verify pin compatibility and thermal performance when substituting these variants.