SSL4101 SSL4101T -- GreenChip III+ SMPS control IC Frequency limitation to reduce switching losses.
2.1 Distinctive features
Integrated PFC and flyback controller.
True universal mains supply operation: 70 V (AC) to 305 V (AC).
High level of integration, resulting in a very low external component count and a cost-effective design.
2.2 Green features
On-chip start-up current source.2.3 PFC green features
Valley/zero voltage switching for minimum switching losses (NXP Semiconductors patented).
Frequency limitation to reduce switching losses.
PFC is 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 fixed minimum peak current at low power operation to maintain high efficiency at low output power levels.
2.5 Protection features
Safe restart mode for system fault conditions.
Continuous mode protection by means of 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).
Open control loop protection for both converters. The open loop protection on the flyback converter is safe restart.
IC OverTemperature Protection (OTP).
Low and adjustable OverCurrent Protection (OCP) trip level for both converters.
General purpose input for latched protection, e.g. to be used for system
OverTemperature Protection (OTP).
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