SSL8516BT - Flyback power supply controller IC with PFC and burst mode for LED lighting

SSL8516BT是NXP恩智浦公司的一款交流供电LED驱动器IC - 高功率产品，SSL8516BT是Flyback power supply controller IC with PFC and burst mode for LED lighting，本站介绍了SSL8516BT的封装应用图解、特点和优点、功能等，并给出了与SSL8516BT相关的NXP元器件型号供参考。

SSL8516BT - Flyback power supply controller IC with PFC and burst mode for LED lighting - 交流供电LED驱动器IC - 高功率 - 照明驱动器和控制器IC - 恩智浦

产品描述

The SSL8516BT combines a controller for Power Factor Correction (PFC) and a flybackcontroller. Its high level of integration enables cost-effective LED lightingapplication power supply design using a very low number of external components.

The specially built-in green functions provide high efficiency at all power levels. Athigh power levels, the flyback operates in QR mode or DCM with valley detection. Atmedium power levels, the flyback controller switches to Frequency Reduction (FR) modeand limits the peak current to an adjustable minimum value. In low-power mode, the PFCswitches off to maintain high efficiency. At very low power levels, when the flybackswitching 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 isminimized to further optimize efficiency. Valley switching is used in all operatingmodes.

产品特性和优势

Integrated PFC and flyback controller
Universal mains supply operation between 90 V (AC) to 305 V (AC)
High level of integration, results in cost-effective designs with very lowexternal component counts
On-chip start-up current source
Power-down functionality for very low standby power
Valley/Zero-Voltage Switching (ZVS) for minimum switching losses
Frequency limitation reduces switching losses
PFC switched off when a low-load is detected at the flyback output
Valley/Zero-Voltage Switching (ZVS) for minimum switching losses
Frequency limitation reduces switching losses
PFC switched off when a low-load is detected at the flyback output
Valley switching for minimum switching losses
Frequency reduction with adjustable minimum peak current at low-power operationmaintains high-efficiency at low output power levels
Burst mode operation at very low-power levels for high-efficiency operation
Safe restart mode for system fault conditions
UnderVoltage Protection (UVP)
Accurate OverVoltage Protection (OVP)
Mains voltage independent OverPower Protection (OPP)
Open control loop protection for both converters
OverTemperature Protection (OTP)
Low and adjustable OverCurrent Protection (OCP) trip level for bothconverters
General-purpose input for latched protection

产品应用

Industrial high-bay and low-bay lighting
Commercial interior lighting
Parking garage and interior lighting
Street lighting

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