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LC5222S

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Package：SOP8

3D CAD Data

LC5220 series is a non-isolating, simple and efficient LED driver. The high voltage capability allows direct connection to a wide range of supply voltages ranging from 25 to 400 V (recommended). The LC5220 uses constant current mode to drive LEDs. and buck and buck-boost voltage converters can be configured.
A power MOSFET and controller IC are incorporated in one package. Because few external parts are required, the LC5220 is ideal for use in small-size LED light bulbs. Various control requirements can be supported through the REF pin, including peak current control, output on/off, and sleep mode enable.
Moreover, there is a protection circuit for freewheeling diode open, protection for a buck-boost voltage converter open LED load, and a variable overcurrent protection function. These features improve safety for both the LC5220 and the LEDs.

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Features

    ・Buck and buck-boost converter operations
    ・Built-in reference voltage for current setting
    ・SLEEP function
    ・ENABLE function
    ・High breakdown voltage supply input: 250V(Max.)
    ・Built-in constant current control circuit
    Output current can be controlled by REF pin input voltage
    ・Supports external PWM dimming
    ・Protection functions
    Flywheel diode open protection function(OPP): Latch shutdown
    Undervoltage lockout function (UVLO)
    Variable type overcurrent protection function: (OCP): Latch shutdown
    Thermal shutdown function (TSD): Auto restart

Application

    ・LED lighting equipment
    ・Led lights bulbs

Specifications

Type
Circuit Type Buck
Isolated / Non-Isolated Non-Isolated
MOSFET Breakdown Voltage 250 V
On-Resistance 2.20 Ω
Output Power / Output current 0.5A
OCP Latch
OLP Latch / Auto Restart
OVP None
LED Open / Short Protection YES
Dimming Function Analog
Package Weight (Typ.) g

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

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