DFA20E24S12 POWER ONE, DFA20E24S12 Datasheet - Page 4

• Manufacturer Part Number: DFA20E24S12
• Description: CONVERTER DC-DC 20W 24V/12V SGL
• Manufacturer: POWER ONE
• Series: DFA20r
• Type: Isolatedr

Specifications of DFA20E24S12

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 20W
• Mounting Type: Through Hole
• Voltage - Input: 18 ~ 36V
• Package / Case: 7-DIP Module
• 1st Output: 12 VDC @ 1.7A
• Size / Dimension: 2.02" L x 2.02" W x 0.45" H (51.3mm x 51.3mm x 11.4mm)
• Power (watts) - Rated: 20W
• Operating Temperature: -50°C ~ 100°C
• Efficiency: 85%
• Approvals: CE, cUL, EN, TUV, UL
• Output Power: 20W
• Output Current: 1.7A
• Input Voltage: 24V
• Output Voltage: 12V
• Screening Level: Industrial
• Product Length (mm): 51.31mm
• Product Height (mm): 11.43mm
• Product Depth (mm): 51.31mm
• Mounting Style: Through Hole
• Pin Count: 7
• Product: Isolated
• Input Voltage Range: 18 V to 36 V
• Output Voltage (channel 1): 12 V
• Output Current (channel 1): 1700 mA
• Isolation Voltage: 700 V
• Package / Case Size: DIP
• Output Type: Isolated
• Brand/series: DFA20 Series
• Configuration: Encapsulated
• Current, Output: 1700 mA
• Dimensions: 2.02 in. W x 2.02 in. H
• Operation: Switching
• Power, Output: 20 W
• Primary Type: DC-DC Converter
• Special Features: Remote On/Off, Trim
• Temperature, Operating, Maximum: +85 °C
• Temperature, Operating, Minimum: -40 °C
• Voltage, Input: 36 VDC
• Voltage, Output: 12 VDC
• Voltage, Output, Accuracy: 12 VDC (Typ.)
• Extended Range Input (2: 1)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Not Compliant
• Other names: 179-1038

NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components
in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective
divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date
manufactured. Specifications are subject to change without notice.
MCD10079 Rev. 1.3, 15-Jun-10
Typical Performance: (Tc=25˚C, Vin=Nom VDC, Rated Load)
120
100
90
85
80
75
70
65
60
80
60
40
20
85
80
75
70
65
90
85
80
75
70
65
0
0
0
0
0
LINE = 48VDC
LINE = 9VDC
LINE = 18VDC
LINE = 18VDC
LINE = 24VDC
LINE = 36VDC
LINE = 12VDC
OUTPUT VOLTAGE Vs. OUTPUT LOAD
10
10
LINE = 36VDC
10
20
48 VOLT EFFICIENCY Vs. LOAD
12 VOLT EFFICIENCY Vs. LOAD
24 VOLT EFFICIENCY Vs. LOAD
20
20
20
40
30
30
30
OUTPUT LOAD (%)
CURRENT LIMIT MODE >
40
40
40
LINE = 72VDC
LOAD (%)
LOAD (%)
LOAD (%)
60
50
50
50
80
60
60
60
70
70
70
100
80
80
80
120
90 100
90 100
90 100
140
85
80
75
70
65
90
85
80
75
70
90
85
80
75
70
65
60
12 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
24 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
48 VOLT EFFICIENCY Vs. LINE INPUT VOLTAGE
18
36
NOTES ON USING THE CURVES
1)
2)
9
DFA20 Single-Output DC-DC Series Data Sheet
10
20
40
50% FULL LOAD
50% FULL LOAD
The input currents are for 20 watts of output power. For
±5 volt output models the current is approximately 15% less.
The efficiency curves are for 12 volt output models. To use for other models, adjust as follows:
11
22
44
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100% FULL LOAD
100% FULL LOAD
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
±5 volt models subtract approximately 3%.
±15volt models add approximately 1%.
12
24
48
13
26
52
100% FULL LOAD
50% FULL LOAD
14
28
56
15
30
60
16
32
64
17
34
68
18
36
72
12 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
24 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
48 VOLT INPUT CURRENT Vs. LINE INPUT VOLTAGE
2.0
1.5
1.0
0.5
0.0
1.0
0.8
0.6
0.4
0.2
0.0
4
3
2
1
0
0
0
0
2
10
5
4
10
20
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
6
15
30
www.power-one.com
8
2 0
4 0
100% LOAD
100% LOAD
50% LOAD
50% LOAD
10
50% LOAD
2 5
50
100% LOAD
12
30
60
14
35
70
16
18
40
80