SLTS092B Datasheet, PDF (3/9 Pages) Texas Instruments – 20-W 48-V Input Isolated DC/DC Converter

PT4120 Series
20-W 48-V Input Isolated
DC/DC Converter
Typical Characteristics
PT4121, 3.3 VDC (See Note A)
PT4122, 5.0 VDC (See Note A)
PT4123, 12.0 VDC (See Note A)
Efficiency vs Output Current
90
80
70
60
50
0
1
2
3
4
Iout (A)
Vin
36.0V
48.0V
75.0V
5
Efficiency vs Output Current
90
85
80
75
70
65
60
55
50
0 0.5 1 1.5 2 2.5 3 3.5 4
Iout (A)
Vin
36.0V
48.0V
75.0V
Efficiency vs Output Current
90
85
80
75
70
65
60
55
50
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Iout (A)
Vin
36.0V
48.0V
75.0V
Ripple vs Output Current
12
10
8
6
4
2
0
0
1
2
3
4
Iout (A)
Vin
75.0V
48.0V
36.0V
5
Ripple vs Output Current
16
14
12
10
8
6
4
2
0
0 0.5 1 1.5 2 2.5 3 3.5 4
Iout (A)
Vin
75.0V
48.0V
36.0V
Ripple vs Output Current
70
60
50
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Iout (A)
Vin
75.0V
48.0V
36.0V
Power Dissipation vs Output Current
6
5
4
3
2
1
0
0
1
2
3
4
5
Iout (A)
Vin
75.0V
48.0V
36.0V
Power Dissipation vs Output Current
6
5
4
3
2
1
0
0 0.5 1 1.5 2 2.5 3 3.5 4
Iout (A)
Vin
75.0V
48.0V
36.0V
Power Dissipation vs Output Current
6
5
4
3
2
1
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Iout (A)
Vin
75.0V
48.0V
36.0V
Safe Operating Area, V_in =48V (See Note B)
90
80
Airflow
70
200LFM
60
120LFM
50
60LFM
Nat conv
40
30
20
0
1
2
3
4
5
Iout (A)
Safe Operating Area, V_in =48V (See Note B)
90
80
Airflow
70
200LFM
60
120LFM
50
60LFM
Nat conv
40
30
20
0
1
2
3
4
Iout (A)
Safe Operating Area, V_in =48V (See Note B)
90
80
Airflow
70
200LFM
60
120LFM
50
60LFM
Nat conv
40
30
20
0
0.25 0.5 0.75 1 1.25 1.5 1.75
Iout (A)
Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures
For technical support and more information, see inside back cover or visit www.ti.com