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OB2262
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Part Number OB2262
Description 15W Adapter Module Design
Page 4 Pages


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OB2262 Application Note
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15W Adapter Module Design
with OB2262
(Preliminary Release)
Key Features
ƒ Low component count
ƒ Standby Power 0.2W
ƒ Audio noise free operation
ƒ OCP with line compensation
Version
v.1.0
Date Revision History
2005-6-23 Preliminary Release
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OB2262 Application Note
Index
1 Adaptor Module Specification ..................................................................................................................... 3
1.1. Input Characteristic .......................................................................................................................... 3
1.2. Output Characteristic........................................................................................................................ 3
1.3. Performance Spec............................................................................................................................. 4
1.4. Protection Features ........................................................................................................................... 4
1.5. Environmental .................................................................................................................................. 4
1.6. Dielectric withstand (Hi-pot) test ..................................................................................................... 4
www.DataSheet4U.com1.7. Insulation.......................................................................................................................................... 4
2 Adaptor Module Information ....................................................................................................................... 5
2.1 Schematic ......................................................................................................................................... 5
2.2 PCB Garber File ............................................................................................................................... 6
2.3 BOM................................................................................................................................................. 7
3 Performance Evaluation ............................................................................................................................... 9
3.1 Input Characteristics....................................................................................................................... 10
3.2 Output Characteristics .................................................................................................................... 10
3.3 Protections...................................................................................................................................... 20
3.4 Brownout/Brownout recovery test ................................................................................................. 21
3.5 EMI Test ......................................................................................................................................... 22
3.5.1 Conducted EMI Test................................................................................................................... 22
3.5.2 Radiation EMI Test..................................................................................................................... 30
Figures
Figure 1 Measured ripple& noise waveform@90Vac/60HZ, no load. ........................................................11
Figure 2 Measured ripple& noise waveform@90Vac/60HZ, full load. .................................................. 12
Figure 3 Measured ripple& noise waveform@264Vac/50HZ, no load ...................................................... 12
Figure 4 Measured ripple& noise waveform@264Vac/50HZ, full load .................................................... 13
Figure 5 Measured overshoot waveform@90Vac/60HZ, full load............................................................. 14
Figure 6 Measured overshoot waveform@264Vac/50HZ, full load........................................................... 15
Figure 7 Output voltage waveform of under Dynamic test@264Vac/50HZ,full load................................ 15
Figure 8 Output voltage waveform under Dynamic test@90Vac/60HZ with full load .............................. 16
Figure 9 Turn on delay time measured waveform@90Vac/60HZ,full load................................................ 17
Figure 10 Turn on delay time measured waveform@240Vac/50HZ,full load ........................................... 17
Figure 11 Hold on delay time measured waveform@100Vac/60HZ,full load ........................................... 18
Figure 12 Rise time measured waveform@100Vac/60HZ,full load........................................................... 18
Figure 13 Rise time measured waveform@240Vac/50HZ,full load........................................................... 19
Figure 14 Fall time measured waveform@100Vac/60HZ,full load ........................................................... 19
Figure 15 Fall time measured waveform@240Vac/50HZ,full load ........................................................... 20
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OB2262 Application Note
Table 1 Input characteristic at full load ...................................................................................................... 10
Table 2 Standby power at no load .............................................................................................................. 10
Table 3 Standby power at no load with output LED .................................................................................. 10
Table 4 Line Regulation & Load Regulation ............................................................................................. 10
Table 4 Over shoot/under shoot measurement results ................................................................................ 13
Table 5 Output voltage under dynamic test ................................................................................................ 15
Table 6 Turn-on delay /hold-up/Rise/Fall time measurement results ......................................................... 16
Table 7 OCP value vs. input voltage .......................................................................................................... 20
Table 8 Brownout/Brownout recovery test results ..................................................................................... 21
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1 Adaptor Module Specification
Model Num: OBPD15W-L120A
Rev. A0
1.1. Input Characteristic
ƒ AC input voltage rating
ƒ AC input voltage range
ƒ AC input frequency
ƒ Max. In-rush current
(At cold Start )
ƒ Input Current
ƒ Leakage Current
100VAC to 240VAC
90VAC to 264VAC
47HZ to 63HZ
30 A for 100VAC/50HZ at full load
75 A for 240VAC/50HZ at full load
0.45A (rms) max. @ full load, 100VAC/60HZ
0.23A (rms) max. @ full load, 240VAC/50HZ
0.25mA Max.
1.2. Output Characteristic
ƒ Output Voltage
ƒ Output Tolerance
ƒ Min. load current
ƒ Max. load current
ƒ Line Regulation
ƒ Load Regulation
ƒ Ripple & Noise
+12.0V
+/-0.6V
0A
1.25A
1%
5%
50 mV
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OB2262 Application Note
Note: Ripple & Noise is measured with 20MHZ bandwidth limited (peak to peak value) at the
end of a 12-inch twisted wire terminated with a 10uF capacitor in parallel with a 0.1uF
ceramic capacitor.
1.3. Performance Spec
ƒ Total Output Power
ƒ Standby Power
ƒ Efficiency
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ƒ Hold up Time
ƒ Turn on Delay Time
ƒ Switching frequency
15W Typical
< 0.3W @ 240Vac/50HZ, no load.
75min. @ 90Vac/60HZ with full load
10m sec. min. @ 100Vac/60HZ with full load
1 sec. max. @ 100Vac/60HZ with full load
20K HZ~100K HZ Free-Running.
1.4. Protection Features
ƒ Short circuit Protection
ƒ Over Voltage Protection
ƒ Over Current Protection
Output shut down (Auto recovery)
Output shut down when output voltage exceeds 15V
Output shut down (Auto restart)
1.5. Environmental
ƒ Operating Temperature
ƒ Operating Humidity
ƒ Storage Temperature
ƒ Storage Humidity
0to + 40
20 % to 90 % R. H.
-40 to 85
0 % to + 90 % R. H.
1.6. Dielectric withstand (Hi-pot) test
ƒ Input to Output
3000Vac 1 min.
1.7. Insulation
ƒ Input to Output
DC 500V 10M ohm min.
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OB_DOC_AN_2262A1



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