900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




NXP Semiconductors Electronic Components Datasheet

SSL21084AT Datasheet

Mains dimmable LED driver

No Preview Available !

SSL21084AT
Mains dimmable LED driver IC
Rev. 6 — 3 October 2013
Product data sheet
1. General description
The SSL21084AT is a high-voltage Integrated Circuit (IC) for driving retrofit LED lamps in
general lighting applications. It enables the implementation of a very compact low-cost
system solution. The IC has an integrated internal HV switch and work as Boundary
Conduction Mode (BCM) buck converter.
The SSL21084AT is supplied by a start-up bleeder resistor, a dV/dt supply using
capacitive coupling from the drain or any other auxiliary supply. The IC supply current is
low. An internal clamp limits the supply voltage.
The IC has accurate output current control and can be operated using Pulse-Width
Modulation (PWM) dimming. In addition, several protection features are available such as
easy external temperature feedback.
The main benefits of this IC include:
Small Printed-Circuit Board (PCB) footprint and compact solution
High efficiency (up to 90 %) for non-dimmable high power factor solutions
High power factor (>0.9)
Ease of integration and many protection features
Low electronic Bill Of Materials (BOM)
Mains phase-cut dimmable using external components
Highly flexible IC for use in buck, buck/boost mode
Single inductor used for non-isolated configurations because of internal
demagnetization detection and dV/dt supply
The SSL21084AT is designed to start up directly from the HV supply using an internal
high-voltage current source. An internal clamp limits the supply voltage.


NXP Semiconductors Electronic Components Datasheet

SSL21084AT Datasheet

Mains dimmable LED driver

No Preview Available !

NXP Semiconductors
SSL21084AT
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 SSL21084AT is intended for mains dimmable compact LED lamps for single mains
input voltages. Mains input voltages include 100 V (AC), 120 V (AC) and 230 V (AC).
SSL21084AT
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.
2 of 21


Part Number SSL21084AT
Description Mains dimmable LED driver
Maker NXP
PDF Download

SSL21084AT Datasheet PDF






Similar Datasheet

1 SSL21084AT Mains dimmable LED driver
NXP





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy