数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

UM0670 数据表(PDF) 21 Page - STMicroelectronics

部件名 UM0670
功能描述  80 W offline LED driver with PFC
PDF  43 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

UM0670 数据表(HTML) 21 Page - STMicroelectronics

Back Button UM0670 Datasheet HTML 17Page - STMicroelectronics UM0670 Datasheet HTML 18Page - STMicroelectronics UM0670 Datasheet HTML 19Page - STMicroelectronics UM0670 Datasheet HTML 20Page - STMicroelectronics UM0670 Datasheet HTML 21Page - STMicroelectronics UM0670 Datasheet HTML 22Page - STMicroelectronics UM0670 Datasheet HTML 23Page - STMicroelectronics UM0670 Datasheet HTML 24Page - STMicroelectronics UM0670 Datasheet HTML 25Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 43 page
background image
Measurement
UM0670
21/43
Doc ID 15327 Rev 2
Figure 16.
Output LED current for different LED voltage (ILED = 700 mA)
Figure 17 shows the output LED current waveform for the output LED current of 1000 mA.
The current ripple is 433 mA and the switching frequency for the modified buck converter is
55 kHz. The input voltage was 230 VAC and 4 LEDs were used as the load (OSTAR LED LE
UW E3B see Section 11: References and related materials: 6). The output LED current
accuracy for the different LED voltages is shown in Figure 18.
Figure 17.
Output LED current waveform (ILED = 1000 mA)
AM00404
VLED v s. ILED for nominal LED current 700 mA
0
100
200
300
400
500
600
700
800
82
101
121
139
LED voltage [V]
LED
current
[mA]
700 mA



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com