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SSL5021BTS - Compact low-ripple buck LED driver IC

Features


  • Driving LED strings from a rectified mains supply, low-ripple (< ±5 %)
  • Small electronic Bill of Materials (BOM) enabling a compact solution and a small, single layer Printed-Circuit Board (PCB) footprint
  • Excellent line and load regulation and LED output current accuracy (< ±3 %)
  • Efficient BCM operation with:
    • No reverse recovery losses in freewheel diode
    • Zero Current Switching (ZCS) and valley switching
    • Minimal inductance value and size required
    • High efficiency (up to 93 %)
    • Ultra low IC current during operation (< 150 μA)
  • Many auto-recovery protections:
    • UnderVoltage LockOut (UVLO)
    • Cycle-by-cycle OverCurrent Protection (OCP)
    • Internal OverTemperature Protection (OTP)
    • Output Overvoltage Protection (OVP)
    • Output Short Protection (OSP)
    • Thermal foldback protection via a single PTC or NTC resistor


Typical Application


Description

The SSL5021BTS is part of a new range of LED driver ICs for non–isolated, non-dimmable LED solutions. Complementing NXP’s broad GreenChip SSL family of products, the new IC supports LED lighting applications ranging from 5W lamp power like Candela shape up to 25W lamp power like integrated Fixtures/Luminaires, TLED and PAR lamp shapes.

Applications


  • Low cost non-dimmable, non-isolated retrofit LED lamps up to 25 W
  • Low cost non-dimmable, non-isolated driver modules for LED lighting up to 25 W

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