PTB48580A Datasheet, PDF (6/13 Pages) Texas Instruments – Dual Complementary-Output DC/DC Converter for DSL

PTB48580B
Dual Complementary-Output
DC/DC Converter for DSL
Not Recommended for New Designs
Typical Characteristics
SLTS240 DECEMBER 2004
PTB48580B Characteristic Data @V_IN =48 V (See Notes A)
Safe Operating Area PTB48580B (See Note C)
Efficiency vs Load Current (See Note B)
90
80
70
60
50
40
0
0.25
0.5
0.75
1
1.25
|±I_O| – Balanced Output Current – A
Power Dissipation vs Load Current (See Note B)
5
4
3
2
1
0
0
0.25
0.5
0.75
1
1.25
|±I_O| – Balanced Output Current – A
Cross Regulation, ∆|+V_O| vs |–I_O|, with |+I_O| = 0.6 A
300
200
100
0
-100
-200
-300
0
0.25
0.5
0.75
1
1.25
|–I_O| – Output Current – A
Cross Regulation, ∆|–V_O| vs |+I_O|, with |–I_O| = 0.6 A
300
200
100
0
-100
-200
-300
0
0.25
0.5
0.75
1
1.25
|+I_O| – Output Current – A
Balanced Load, V_I =48 VDC (See Note B)
90
80
70
Airflow
60
200LFM
100LFM
50
Nat conv
40
30
20
0
0.25
0.5
0.75
1
1.25
|±I_O| – Balanced Output Current – 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: Under a balanced load, current flowing out of +V_o is equal to that flowing into –V_o.
Note C: 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 2 oz. copper.
For technical support and further information visit http://power.ti.com