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SSL21083T

Silergy
Part Number SSL21083T
Manufacturer Silergy
Description Compact non-dimmable LED driver
Published May 25, 2020
Detailed Description SSL21083T Compact non-dimmable LED driver IC Rev. 6 — 4 October 2013 Product data sheet 1. General description The SSL...
Datasheet PDF File SSL21083T PDF File

SSL21083T
SSL21083T

Overview
SSL21083T Compact non-dimmable LED driver IC Rev.
6 — 4 October 2013 Product data sheet 1.
General description The SSL21083T is a high-voltage Integrated Circuit (IC) for driving LED lamps in general mains non-dimmable lighting applications.
The main benefits are: • Small Printed-Circuit Board (PCB) footprint; compact solution • High efficiency (up to 95 %) • Ease of integration • Low electronic Bill Of Material (BOM) The IC incorporates a 600 V MOSFET.
The IC works as boundary conduction mode converters, typically in buck configuration.
It has been designed to start up directly from the HV supply by an internal high-voltage current source.
Thereafter, the dV/dt supply is used with capacitive coupling from the drain or any other auxiliary supply.
This function provides full flexibility in the application design.
The IC consumes 1.
3 mA of supply current with an internal clamp limiting the supply voltage.
The IC provides accurate output current control with LED current accuracy within 5 %.
The IC can be operated using Pulse-Width Modulation (PWM) current regulation.
It has many protection features including easy LED temperature feedback.
2.
Features and benefits  LED driver ICs for driving LED strings from a rectified mains supply  High-efficiency switch mode buck driver product family:  drivers with integrated 600 V (DC) power switches  Controller with power-efficient boundary conduction mode of operation with:  No reverse recovery losses in freewheel diode  Zero Current Switching (ZCS) for turn-on of switch  Zero voltage or valley switching for turn-on of switch  Minimal required inductance value and size  Direct PWM current regulation possible  Fast transient response through cycle-by-cycle current control:  Negligible AC mains ripple at LED current and minimal total capacitor value  No over or undershoots in the LED current Silergy Corp.
SSL21083T Compact non-dimmable LED driver IC  Internal protections:  UnderVoltage LockOut (UVLO)  Leading-Ed...


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