SSL21081AT Datasheet, PDF (2/22 Pages) NXP Semiconductors – Compact non-dimmable LED driver IC

NXP Semiconductors
SSL21082AT
Mains dimmable LED driver IC
2. Features and benefits
 LED driver IC for driving strings of LEDs or high-voltage LED modules from a rectified
mains supply
 Power-efficient boundary conduction mode operation with:
 No reverse recovery losses in freewheel diode
 Zero-Current Switching (ZCS) for switch turn-on
 Zero-voltage or valley switching for switch turn-off
 Minimal required inductance value and size
 Fast transient response through cycle-by-cycle current control:
 No overshoot or undershoot in the LED current
 Simple high input power factor solution (> 0.9)
 Internal protection features:
 UnderVoltage LockOut (UVLO)
 Leading-Edge Blanking (LEB)
 OverCurrent Protection (OCP)
 Internal OverTemperature Protection (OTP)
 Brownout protection
 Output Short Protection (OSP)
 Mains phase cut dimmable LED driver solution:
 Supports both leading-edge and trailing-edge dimmers
 Easy external temperature protection with a single NTC
 Open output protection using external components
 Compatible with wall switches with built-in indication light during standby
 IC lifetime easily matches or surpasses LED lamp lifetime
 Input current distributed evenly over the phase, reducing required output capacitor
size and bleeder dissipation
3. Applications
The SSL21082AT is intended for mains dimmable compact LED lamps for single mains
input voltages. Mains input voltages include 100 V (AC) and 120 V (AC).
SSL21082AT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 3 October 2013
© NXP B.V. 2013. All rights reserved.
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