OBSOLETE
LC5720S
Package：HSOP8
The LC5720S product is the power IC for LED driver which incorporates a power MOSFET and a controller IC in a package. This product is a DC/DC converter which features are; wide input voltage range, 500kHz operating frequency, and Buck/ Boost/ Buck-Boost converter can be selected with external circuit configuration. LED string current can be set with the external resistor, and LED dimming can be controlled by the digital input signal. The rich set of protection features helps to realize low component counts, and high performance-to-cost power supply.
Features
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l Operation Types: The following converter types are applicable by the external circuit configuration
Buck Converter
Boost Converter
Buck-Boost Converter
l ILED=2.0A
l Fosc=500kHz
l VCS : 100mV±5%
l High Efficiency: η > Typ.90%
l PWM Dimming Frequency: 20kHz(Max)
l Protection Functions
OCP: Pulse-by -pulse
OVP
TSD: Auto Restart
Application
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・DC input LED Lighting
・Indoor/Outdoor LED Lighting
・LED Spotlight
・RGB LED Lighting
Specifications
| Type | Power IC |
|---|---|
| Circuit Type | Buck-Boost |
| Isolated / Non-Isolated | Non-Isolated |
| MOSFET Breakdown Voltage | 50 V |
| On-Resistance | 0.22 Ω |
| Output Power / Output current | 2.0A |
| OCP | Pulse by pulse |
| OLP | Latch / Auto Restart |
| OVP | Auto Restart |
| LED Open / Short Protection | YES |
| Dimming Function | Analog |
| Package Weight (Typ.) | g |
Block Diagram
Pin Configuration Definitions
Questions or Comments?
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