OBSOLETE
LC5523D
The LC5520 series is the power IC for non-isolated LED driver applications with commercial power supply. It provides constant output current control for driving LEDs. The buck or buck-boost topology is selectable by peripheral circuit structure.
It includes various functions, and this design allows the achievement of highly cost-effective LED lighting power supply systems by reducing external component count and minimizing PCB area.
Design Support
Features
-
・Isolated type
・Built-in ON time control circuit
・Built-in soft start circuit
・Built-in bias assist function
・Built-in leading edge blanking function
・Built-in maximum ON time control circuit
・Protection functions
Overcurrent protection (OCP): Pulse by pulse
Overvoltage protection (OVP): Auto restart (VCC, OCP. OVP pin)
Overload protection (OLP): Auto restart
Thermal shutdown (TSD): Latch shutdown
Application
-
・LED lighting equipment
・Led lights bulbs
Specifications
| Type | |
|---|---|
| Circuit Type | Flyback |
| Isolated / Non-Isolated | Isolated |
| MOSFET Breakdown Voltage | 650 V |
| On-Resistance | 1.90 Ω |
| Output Power / Output current | 16W |
| OCP | Pulse by pulse |
| OLP | Auto Restart |
| OVP | Auto Restart |
| LED Open / Short Protection | NO |
| Dimming Function | PWM |
| Package Weight (Typ.) | 0.51 g |
Block Diagram
Pin Configuration Definitions
Physical Dimensions
Questions or Comments?
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