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MT7897 - TRIAC Dimmable Constant Current LED Driver

Description

MT7897 is a high precision LED constant current controller.

It operates in critical conduction mode (CRM) with zero current switched-on and peak current switched-off.

It’s mainly targeted for BUCK-BOOST LED power systems.

Features

  • to improve the system reliability, including over current protection (OCP), short circuit protection (SCP), adjustable over voltage protection (OVP) and over temp.

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Datasheet Details

Part number MT7897
Manufacturer Maxic Technology
File Size 127.55 KB
Description TRIAC Dimmable Constant Current LED Driver
Datasheet download datasheet MT7897 Datasheet

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Full PDF Text Transcription

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MT7897 TRIAC Dimmable Constant Current LED Driver DESCRIPTION MT7897 is a high precision LED constant current controller. It operates in critical conduction mode (CRM) with zero current switched-on and peak current switched-off. It’s mainly targeted for BUCK-BOOST LED power systems. MT7897 supports high power factor application. The Power Factor (PF) can reach 0.8 or higher. CRM ensures that the MT7897 turns on the internal power MOSFET when the inductor current reaches zero, reducing the power MOSFET switching loss. With critical conduction mode, and line compensation, MT7897 outputs high accuracy LED current, and further achieves excellent line regulation and load regulation. MT7897 embedded with 550V power MOSFET, it can achieve simplified peripheral circuits and low BOM cost.
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