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SSL8516BT

Silergy
Part Number SSL8516BT
Manufacturer Silergy
Description Greenchip PFC and flyback controller
Published May 25, 2020
Detailed Description SSL8516BT Greenchip PFC and flyback controller Rev. 1 — 26 May 2015 Product data sheet 1. General description The Gree...
Datasheet PDF File SSL8516BT PDF File

SSL8516BT
SSL8516BT

Overview
SSL8516BT Greenchip PFC and flyback controller Rev.
1 — 26 May 2015 Product data sheet 1.
General description The GreenChip is the latest generation of green Switched Mode Power Supply (SMPS) controller ICs.
The SSL8516BT combines a controller for Power Factor Correction (PFC) and a flyback controller.
Its high level of integration enables cost-effective LED lighting application power supply design using a very low number of external components.
The PFC operates in Quasi-Resonant (QR) or Discontinuous Conduction Mode (DCM), with valley switching.
The specially built-in green functions provide high efficiency at all power levels.
At high power levels, the flyback operates in QR mode or DCM with valley detection.
At medium power levels, the flyback controller switches to Frequency Reduction (FR) mode and limits the peak current to an adjustable minimum value.
In low-power mode, the PFC switches off to maintain high efficiency.
At very low power levels, when the flyback switching frequency drops to below 25 kHz, the flyback converter switches to burst mode.
During the non-switching phase of the burst mode, the internal IC supply current is minimized to optimize efficiency further.
Valley switching is used in all operating modes.
The advanced burst mode ensures high efficiency at low power and good standby power performance while minimizing audible transformer noise.
The SSL8516BT is a Multi-Chip Module (MCM), containing two chips.
The proprietary high-voltage BCD800 process makes direct start-up possible from the rectified universal mains voltage in an effective and green way.
The second low voltage Silicon-On-Insulator (SOI) is used for accurate, high-speed protection functions and control.
The SSL8516BT enables easy design of highly efficient and reliable LED lighting application power supplies between 25 W and 300 W.
LED drivers in particular benefit from the high level of integration.
The IC meets the lighting class C requirements on mains current harmonics as sp...


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