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RT7320 - High Voltage Programmable Constant-Current LED Driver

Description

The RT7320 is a simple and robust constant-current regulator designed to provide a cost-effective solution for driving high-voltage LEDs in LED lamp applications.

The wide input voltage range (up to 400V) allows flexible LED string design to operate with 110VRMS or 220VRMS AC input voltage.

Features

  • z Programmable Regulated Current : 2.8mA to 78.3mA z AC Input Voltage : 90 to 130VRMS or 200 to 240VRMS z Thermal Regulation Protection z Minimized Start-up Time (.

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Datasheet Details

Part number RT7320
Manufacturer Richtek
File Size 131.73 KB
Description High Voltage Programmable Constant-Current LED Driver
Datasheet download datasheet RT7320 Datasheet

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Full PDF Text Transcription

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® RT7320 High Voltage Programmable Constant-Current LED Driver General Description The RT7320 is a simple and robust constant-current regulator designed to provide a cost-effective solution for driving high-voltage LEDs in LED lamp applications. The wide input voltage range (up to 400V) allows flexible LED string design to operate with 110VRMS or 220VRMS AC input voltage. The RT7320 allows users to set the regulated current level by connecting the pins from I1 to I5 for various LED lamps. Parallel LED strings operation is possible with right regulated current setting on the RT7320. In addition, the RT7320 also provides a thermal regulation protection, instead of traditional thermal shutdown, to suppress the rise of IC junction temperature and prevent LED lamps from flicker.
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