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UM10468
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 1 — 30 August 2011
3 of 27
NXP Semiconductors
UM10468
SSL2108X buck evaluation board
1. Introduction
The SSL2108X is a family of high-voltage Integrated Circuits (IC), designed to drive
non-dimmable retrofit LED lamps in general lighting applications. The product family
consists of four ICs with different configurations which are shown in
[1]
SO12 package variants have more fused leads for lower thermal resistance and can be used when a higher
output power is needed.
Main benefits of the product family are:
•
Small Printed-Circuit Board (PCB) footprint providing a compact solution
•
High-efficiency (up to 95 %)
•
Ease of integration
•
Low electronic Bill Of Material (BOM)
The SSL2108X provides accurate output control with more than 5 % LED current
accuracy. The ICs can operate using Pulse-Width Modulation (PWM) dimming and have
many protection features including easy external temperature feedback.
The SSL2108X driver family is the high performance solution for the next generation of
retrofit LED lamps. These ICs provide a high efficiency, high-power factor solution in a
small form factor.
Remark:
Unless otherwise stated all voltages are in V (DC).
WARNING
Lethal voltage and fire ignition hazard
The non-insulated high voltages that are present when operating this product, constitute a
risk of electric shock, personal injury, death and/or ignition of fire.
This product is intended for evaluation purposes only. It shall be operated in a designated test
area by personnel qualified according to local requirements and labor laws to work with
non-insulated mains voltages and high-voltage circuits. This product shall never be operated
unattended.
Table 1.
SSL2108X type number overview
Type
Package
V
mains
range
(V (AC))
Internal MOSFET
characteristics
Adjustable brownout
protection
SSL21081
SO8
100 to 120
300 V; 2
no
SSL21082
SO12
yes
SSL21083
SO8
100 to 230
600 V; 5
no
SSL21084
SO12
yes