PTB48540 Datasheet, PDF (4/12 Pages) Texas Instruments – 10-W Power-Over-Ethernet Isolated Power Module Assembly

PTB48540 Series
10-W Power-Over-Ethernet Isolated
Power Module Assembly
Typical Characteristics
SLTS224B – APRIL 2004 – REVISED JULY 2004
PTB48540B; V_o =3.3 V (See Note A) PTB48540A; V_o =5 V (See Note A)
PTB48540C; V_o =12 V (See Note A)
Efficiency vs Load Current
100
90
80
70
60
50
0
0.5
1
1.5
2
2.5
Iout - Amps
VIN
42 V
48 V
57 V
3
Efficiency vs Load Current
100
90
80
70
60
50
0
0.4
0.8
1.2
1.6
Iout - Amps
VIN
42 V
48 V
57 V
2
Efficiency vs Load Current
100
90
80
70
60
50
0
0.2
0.4
0.6
0.8
Iout - Amps
VIN
42 V
48 V
57 V
Output Ripple vs Load Current
100
80
VIN
60
42 V
48 V
40
57 V
20
0
0
0.5
1
1.5
2
2.5
3
Iout - Amps
Output Ripple vs Load Current
100
Output Ripple vs Load Current
100
80
80
VIN
60
42 V
60
48 V
40
57 V
40
20
20
0
0
0.4
0.8
1.2
1.6
2
Iout - Amps
0
0
0.2
0.4
0.6
0.8
Iout - Amps
VIN
42 V
48 V
57 V
Power Dissipation vs Load Current
3
2.5
2
1.5
1
0.5
0
0
0.5
1
1.5
2
2.5
3
Iout - Amps
VIN
42 V
48 V
57 V
Power Dissipation vs Load Current
2.5
2
VIN
1.5
42 V
48 V
1
57 V
0.5
0
0
0.4
0.8
1.2
1.6
2
Iout - Amps
Power Dissipation vs Load Current
2.5
2
VIN
1.5
42 V
48 V
1
57 V
0.5
0
0
0.2
0.4
0.6
0.8
Iout - Amps
Safe Operating Area (See Note B)
90
80
Airflow
70
400LFM
60
200LFM
50
100LFM
Nat conv
40
30
20
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Iout (A)
Safe Operating Area (See Note B)
90
80
Airflow
70
400LFM
60
200LFM
50
100LFM
Nat conv
40
30
20
0.0
0.4
0.8
1.2
1.6
2.0
Iout (A)
Safe Operating Area (See Note B)
90
80
Airflow
70
400LFM
60
200LFM
50
100LFM
Nat conv
40
30
20
0.0
0.2
0.4
0.6
0.8
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. Derating limits apply to
modules soldered directly to a 4 in. × 4 in. double-sided PCB with 1 oz. copper.
For technical support and further information visit http://power.ti.com