SSL8516T datasheet(2/33 Pages) NXP

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SSL8516T

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Product data sheet

Rev. 1 — 5 May 2014

2 of 33

NXP Semiconductors

SSL8516T

Greenchip PFC and flyback controller

Features and benefits

2.1 Distinctive features

 Integrated PFC and flyback controller

 Universal mains supply operation between 90 V (AC) to 305 V (AC)

 Fixed boost PFC with accurate maximum output voltage (NXP Semiconductors

patented)

 High level of integration, results in cost-effective designs with very low external

component counts

 Adjustable PFC switch off delay

 External PFC switch on and switch off override

 Accurate PFC switch on and switch off control (NXP Semiconductors patent pending)

2.2 Green features

 On-chip start-up current source

 Power-down functionality for very low standby power

2.3 PFC green features

 Valley/Zero-Voltage Switching (ZVS) for minimum switching losses

(NXP Semiconductors patented)

 Frequency limitation reduces switching losses

 PFC switched off when a low-load is detected at the flyback output

2.4 Flyback green features

 Valley switching for minimum switching losses (NXP Semiconductors patented)

 Frequency reduction with adjustable minimum peak current at low-power operation

maintains high-efficiency at low output power levels

2.5 Protection features

 Safe restart mode for system fault conditions

 Continuous mode protection using demagnetization detection for both converters

(NXP Semiconductors patented)

 UnderVoltage Protection (UVP) (foldback during overload)

 Accurate OverVoltage Protection (OVP) for both converters (adjustable for flyback

converter)

 Mains voltage independent OverPower Protection (OPP)

 Open control loop protection for both converters. The open-loop protection on the

flyback converter is safe restart

 OverTemperature Protection (OTP)

 Low and adjustable OverCurrent Protection (OCP) trip level for both converters

 General-purpose input for latched protection, for use with system OverTemperature

Protection (OTP)

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