PT4240 Series
10-W Low-Profile 24V-Input
Isolated DC/DC Converter
PT4243, V =5.0VDC (See Note A)
PT4244, V =12.0VDC (See Note A)
PT4242, V =3.3VDC (See Note A)
o
o
o
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
90
90
85
80
75
70
65
60
90
VIN
VIN
VIN
80
70
60
50
80
70
60
50
36.0V
36.0V
30.0V
24.0V
18.0V
36.0V
30.0V
24.0V
18.0V
30.0V
24.0V
18.0V
0
0.4
0.8
1.2
1.6
2
0
0.5
1
1.5
2
2.5
3
0
0.2
0.4
0.6
0.8
1
Iout (A)
Iout (A)
Iout (A)
Output Ripple vs Output Current
Output Ripple vs Output Current
Output Ripple vs Output Current
70
60
50
40
30
20
10
0
50
40
30
20
10
0
120
100
80
60
40
20
0
VIN
VIN
VIN
18.0V
24.0V
30.0V
36.0V
18.0V
24.0V
30.0V
36.0V
18.0V
24.0V
30.0V
36.0V
0
0.5
1
1.5
2
2.5
3
0
0.4
0.8
1.2
1.6
2
0
0.2
0.4
0.6
0.8
1
Iout (A)
Iout (A)
Iout (A)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
2.5
2
3
2.5
2
2.5
2
VIN
VIN
VIN
36.0V
24.0V
30.0V
18.0V
18.0V
24.0V
30.0V
36.0V
18.0V
1.5
1
1.5
1
24.0V
30.0V
36.0V
1.5
1
0.5
0
0.5
0
0.5
0
0
0.4
0.8
1.2
1.6
2
0
0.5
1
1.5
2
2.5
3
0
0.2
0.4
0.6
0.8
1
Iout (A)
Iout (A)
Iout (A)
Safe Operating Area @Vin =24V (Note B)
Safe Operating Area @Vin =24V (Note B)
Safe Operating Area @Vin =24V (Note B)
90.0
90.0
90.0
80.0
80.0
80.0
Airflow
Airflow
Airflow
70.0
60.0
50.0
40.0
30.0
20.0
70.0
60.0
50.0
40.0
30.0
20.0
70.0
60.0
50.0
40.0
30.0
20.0
200LFM
120LFM
60LFM
Nat conv
60LFM
200LFM
120LFM
60LFM
120LFM
200LFM
Nat conv
Nat conv
0.0
0.4
0.8
1.2
1.6
2.0
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Iout (A)
Iout (A)
Iout (A)
Note A: All Characteristic data in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the converter.
Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.
For technical support and more information, see inside back cover or visit www.ti.com
TI [ TEXAS INSTRUMENTS ]
