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UM10406 の電気的特性と機能

UM10406のメーカーはNXP Semiconductorsです、この部品の機能は「SSL1523 high power factor 5W LED driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 UM10406
部品説明 SSL1523 high power factor 5W LED driver
メーカ NXP Semiconductors
ロゴ NXP Semiconductors ロゴ 




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UM10406 Datasheet, UM10406 PDF,ピン配置, 機能
UM10406
SSL1523 high power factor 5 W LED driver for universal
mains
Rev. 01 — 3 August 2010
User manual
Document information
Info Content
Keywords
SSL1523, SSL152x family, LED driver, mains supply, AC/DC conversion
Abstract
This user manual describes a demonstration (demo) board for a mains
operated non-dimmable 5 W LED driver using the SSL1523 SMPS
controller IC.
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datasheet pdf - http://www.DataSheet4U.net/

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UM10406 pdf, ピン配列
NXP Semiconductors
UM10406
SSL1523 5 W LED driver
1. Introduction
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.
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
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Table 1 shows the specification for the SSL1523 5 W LED driver.
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 the maximum output power is not exceeded
130 V (AC) ± 1 % in the range
210 V (AC) to 254 V (AC)
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)
Efficiency
5W
>80 %
at Vout = +19 V
at Tamb = 25 °C, Vout = +19 V; see graphs
Figure 11 and Figure 12.
Power Factor:
120 V (AC)
230 V (AC)
0.98
0.90
at 5 W output power; 19 V, Vout = +19 V
Switching frequency
90 kHz to 110 kHz
-
UM10406
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 01 — 3 August 2010
© NXP B.V. 2010. All rights reserved.
3 of 21
datasheet pdf - http://www.DataSheet4U.net/


3Pages


UM10406 電子部品, 半導体
NXP Semiconductors
UM10406
SSL1523 5 W LED driver
The input circuit of the converter must be equipped with a filter that is partially capacitive,
in order to address the EMC requirements (see Figure 5). The combination of C1, L1 and
C2 make a filter that blocks most of the disturbance generated by the converter input
current. This filter is designed to have a limited capacitive load, so a good power factor
can be achieved. For this design, two 150 nF capacitors are incorporated, resulting in a
power factor of at least 0.9 for the nominal condition with six LEDs connected at 5 W
output power.
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019aaa135
Fig 4. Mains current (C2), VCC (C1), bulk capacitor input voltage (C3) and the mains voltage (C4)
The board is equipped with a feedback loop to regulate the output current. This feedback
loop senses the LED current over sense resistor R10, and a current mirror is made from
transistors Q10a/Q10b. Using R18, the current level can then be set. The same feedback
loop is also used to provide overvoltage protection. If the LED voltage exceeds 33 V, a
current through R17 and D11, D12 and D13 will start running. The current through the
opto coupler IC2 will pull up the REG pin. At values above 2.7 V, the ‘on time’ of the
internal MOSFET is zero. The feedback loop has a proportional, and partially integrated
action. The gain is critical due to the phase shift caused by the converter and the output
capacitor C10. Increased gain will make the feedback loop intrinsically unstable.
The accuracy of the resulting output current will satisfy the requirements of the majority of
the 5 W LED applications with four to eight LEDs connected in series. The demo board
can be controlled by connecting the floating output of an external opto coupler (TCDT1124
or equivalent) to K4.
The demo board can be switched on and off by switching the external opto coupler.
Controlling the LED current is another option. The LED current can be regulated by
applying a PWM signal to the external input with a frequency up to 1 kHz. The PWM
frequency can be synchronized with the ripple frequency on the buffer capacitor C1 for an
optimal mains input current shape.
UM10406
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 01 — 3 August 2010
© NXP B.V. 2010. All rights reserved.
6 of 21
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部品番号部品説明メーカ
UM10406

SSL1523 high power factor 5W LED driver

NXP Semiconductors
NXP Semiconductors


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