HM9803 80V 0.5A Switching Current Buck PFM LED Constant Current Driver
■The HM9803 is a monolithic high voltage switching regulator with PFM that is specifically designed to operate from a 24V~80V DC supply.
■The HM9803 is a high efficiency LED driver switching regulator. The LED string is driven at DC constant current rather than constant voltage, thus providing constant current output and enhanced reliability.
●Features:
■Wide 24V to 80V Input Voltage Range
■0.2V current sense voltage reference.
■Directly drive 3~8 series 1W LED.
■Excellent line and load regulation.
■High efficiency up to 96%.
■Internal optimize power HV-MOSFET.
■Built in thermal shutdown function.
■Built in UVLO function.
■Built in current limiting function.
■Built in LED open & short protection.
■Built in soft-start circuit.
■Available in SOIC-8 package.
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Switching Current Buck PFM LED Constant Current Driver 、 monolithic high voltage switching regulator 、 LED driver switching regulator |
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[ EBIKE LED Lighting ][ LED Lighting ][ LED LAMP ][ General purpose lighting ] |
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Datasheet |
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Please see the document for details |
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SOIC-8 |
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English Chinese Chinese and English Japanese |
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2021/03/01 |
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Rev 1.2 |
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592 KB |
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