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MC34751 データシート(PDF) 3 Page - NXP Semiconductors

部品番号 MC34751
部品情報  SSL1523 high power factor 5 W LED driver for universal
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メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo NXP - NXP Semiconductors

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UM10406
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
User manual
Rev. 01 — 3 August 2010
3 of 21
NXP Semiconductors
UM10406
SSL1523 5 W LED driver
1.
Introduction
1.1 General description
The SSL1523 5 W LED driver is a high performance solution for a professional non-dim-
mable application with multiple high power LEDs, that requires galvanic isolation and a
safe output voltage. It can generate a regulated output current with an output power of up
to 5 W, which is equal to a 25 W incandescent lamp (at 63 Lumen/W). Examples are shelf
lighting, down lighting, LED lighting for bathrooms etc. This device can also be used with
less external components in an application, if some performance compromises can be
accepted. Details of a solution with less external components are given in the application
note AN10925.
2.
Specification
Table 1 shows the specification for the SSL1523 5 W LED driver.
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 that is 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.
Specification
Parameter
Specification
Comment
AC line input voltage
100 V (AC) to 254 V (AC)
board has been optimized for 230 V (AC) or
120 V (AC)
± 10 % variation
Output voltage (LED voltage)
19 V (nominal): 12 V to 25 V
range
-
Output voltage protection
33 V (DC)
-
Output current (LED current)
200 mA up to 250 mA
adjustable with potentiometer
Input voltage/load current dependency
± 1 % in the range 100 V (AC) to
130 V (AC)
± 1 % in the range
210 V (AC) to 254 V (AC)
the maximum output power is not exceeded
Output voltage/load current dependency
± 4 %/Volt in regulated range
the maximum output power is not exceeded;
see graphs Figure 9 and Figure 10.
Current ripple
± 75 mA ± 30 %
at 250 mA
Maximum output power (LED power)
5 W
at Vout = +19 V
Efficiency
>80
%
at Tamb = 25 °C, Vout = +19 V; see graphs
Figure 11 and Figure 12.
Power Factor:
120 V (AC)
0.98
at 5 W output power; 19 V, Vout = +19 V
230 V (AC)
0.90
Switching frequency
90 kHz to 110 kHz
-


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