LC5223D

Overview

The LC5223D is an AC/DC offline switcher LED driver IC manufactured by Sanken Electric USA Inc. It features a single output capable of delivering up to 800mA and supports PWM dimming. The device utilizes buck and boost topologies with an internal switch, operating within a supply voltage range of 25V to 200V. Designed for surface mount or through-hole applications in an 8-DIP package, it functions reliably across a temperature range of -40°C to 105°C.

Feature Summary

• Integrates high-voltage capability for direct connection to wide-range supply voltages without isolation
• Supports PWM dimming for precise light control
• Combines step-down (buck) and step-up (boost) converter topologies in a single chip

Applications

• Non-isolated LED lighting systems
• AC/DC offline LED drivers
• General illumination fixtures requiring simple topology

Procurement Notes

Verify component status as the LC5223D may be discontinued or subject to limited availability. Confirm package type accuracy against specific design requirements. Ensure compatibility with existing PCB footprints and thermal management strategies. Check for alternative lead times if current stock is insufficient. Validate RoHS compliance and environmental classifications for target markets.

Selection Notes

Select this component for non-isolated applications requiring high input voltage tolerance. Consider the 800mA output limit when designing LED strings. Evaluate thermal performance given the operating temperature range. Compare against similar models like LC5222S for lower current needs. Ensure system design accommodates the specific buck-boost topology constraints.

Part Context

Part of the LC5220 series, which offers non-isolating, simple, and efficient LED driving solutions. The series is characterized by high voltage capability allowing direct connection to various supply voltages. This family targets cost-sensitive and space-constrained lighting designs where isolation is not required.

Replacement Considerations

LC5222S is a related model offering 400mA output in an 8-SOP package. Verify pinout compatibility and current handling differences before substitution. LC5223D is the primary variant for 800mA DIP applications.