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Attributes Table
Application Type LED Driver Evaluation
Core Supported SSL1750
Features and Applications

The SSL1750 is a Switched Mode Power Supply (SMPS) controller IC, suitable for driving LED applications from 25 W up to 250 W. The SSL1750 combines a controller for Power Factor Correction (PFC) and a fly back controller. Its high level of integration allows the design of a cost-effective LED power supply with a very low number of external components.

The SS1750 evaluation board kit includes :

  • SSL1750 (120v)
  • Datasheet
  • Join the ‘green’ Lighting revolution brochure
  • Layer information
  • Product leaflet
  • Application note
  • User manual

 Features :

 Distinctive features :

  • Integrated PFC and flyback controller
  • Universal mains supply operation (70 V to 276 V (AC))
  • High level of integration resulting in a very low external component count and a cost
        effective design

Green features :

  • On-chip start-up current source

PFC green features :

  • Valley/zero voltage switching for minimum switching losses (patented)
  • Frequency limitation to reduce switching losses
  • Burst mode operation if a low load is detected at the flyback output (patented)

Flyback green features :

  • Valley switching for minimum switching losses (patented)
  • Frequency reduction with fixed minimum peak current at low power operation to
        maintain high efficiency at low output power levels

Protection features :

  • Safe restart mode for system fault conditions
  • Continuous mode protection by means of demagnetization detection for both
        converters (patented)
  • Undervoltage protection (foldback during overload)
  • Accurate OverVoltage Protection (OVP) for both converters (adjustable for flyback
  • Open control loop protection for both converters
  • IC overtemperature protection
  • Low and adjustable OverCurrent Protection (OCP) trip level for both converters
  • Soft-(re)start for both converters
  • Soft-stop PFC to minimize audible noise
  • Mains undervoltage protection / brownout protection
  • General purpose input for latched protection, e.g. to be used for system
        OverTemperature Protection (OTP)

 Applications :

The device can be used in all SSL applications that require an efficient and cost-effective
LED power supply solution up to 250 W.

Key applications for the SSL1750 are :

• Indoor LED applications (> 25 W):
    • Spot lights
    • Down lights
    • Other SSL consumer/industrial fixtures
• Outdoor LED applications (> 25 W):
    • Street lighting
    • Area lighting (e.g. car parking)
    • Tunnel lighting