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KA4976-AL Datasheet(PDF) 9 Page - Analog Devices

Part # KA4976-AL
Description  Isolated Switching Regulator
PDF  20 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

KA4976-AL Datasheet(HTML) 9 Page - Analog Devices

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Data Sheet
ADuM3070
Rev. 0 | Page 9 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 4. Switching Frequency (fSW) vs. ROC Resistance
Figure 5. Typical Efficiency at 5 V In to 5 V Out at Various Switching
Frequencies with 1:2 Coilcraft Transformer (JA4631-BL)
Figure 6. Typical Efficiency at 5 V In to 5 V Out at Various Switching
Frequencies with 1:2 Halo Transformer (TGSAD-260V6LF)
Figure 7. 5 V In to 5 V Out Efficiency over Temperature with 1:2 Coilcraft
Transformer (JA4631-BL) at 500 kHz fSW
Figure 8. Single-Supply Efficiency with 1:2 Coilcraft Transformer (JA4631-BL)
at 500 kHz fSW
Figure 9. Typical Efficiency at 3.3 V In to 5 V Out at Various Switching
Frequencies with 1:3 Halo Transformer (TGSAD-290V6LF)
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
0
50
100
150
200
250
300
350
400
450
500
ROC (Ω)
90
80
70
60
50
40
30
20
10
0
0
500
450
400
350
300
250
200
150
100
50
LOAD CURRENT (mA)
fSW = 1MHz
fSW = 700kHz
fSW = 500kHz
fSW = 200kHz
90
80
70
60
50
40
30
20
10
0
0
500
450
400
350
300
250
200
150
100
50
LOAD CURRENT (mA)
fSW = 1MHz
fSW = 700kHz
fSW = 500kHz
fSW = 200kHz
90
80
70
60
50
40
30
20
10
0
0
500
450
400
350
300
250
200
150
100
50
LOAD CURRENT (mA)
TA = –40°C
TA = +25°C
TA = +105°C
90
80
70
60
50
40
30
20
10
0
0
500
450
400
350
300
250
200
150
100
50
LOAD CURRENT (mA)
5V IN TO 5V OUT
5V IN TO 3.3V OUT
3.3V IN TO 3.3V OUT
80
70
60
50
40
30
20
10
0
0
300
250
200
150
100
50
LOAD CURRENT (mA)
fSW = 1MHz
fSW = 700kHz
fSW = 500kHz
fSW = 200kHz



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