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PTB48500 Datasheet(PDF) 4 Page - Texas Instruments

Part No. PTB48500
Description  Dual-Output, 48-V Input Isolated DC/DC Converter for xDSL
Download  14 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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PTB48500 Datasheet(HTML) 4 Page - Texas Instruments

 
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For technical support and further information visit http://power.ti.com
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:
Load current is increased proportionally from both outputs, up to the respective maximum value of each output.
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 1 oz. copper.
Typical Characteristics
PTB48500A Characteristic Data (See Note A)
Efficiency vs Load Current
(See Note B)
Power Dissipation vs Load Current
(See Note B)
Safe Operating Area PTB48500A (See Note C)
VIN =48 VDC (See Note B)
Cross Regulation,
∆∆∆∆∆Vox vs Ioy @Iox =1 A & VIN =48 V
20
30
40
50
60
70
80
90
0
5
10
15
20
25
30
Total Output Power (W)
400LFM
200LFM
100LFM
Nat Conv
Airflow
50
60
70
80
90
100
0
2468
10
12
Io
1 + Io2 (A)
48 V
36 V
75 V
V
IN
0
2
4
6
8
10
024
68
10
12
Io
1 + Io2 (A)
48 V
36 V
75 V
V
IN
PTB48500
Dual-Output, 48-V Input Isolated
DC/DC Converter for xDSL
-6
-4
-2
0
2
4
6
012
345
67
Io
1 : Io2 (A)
Vo
1 vs Io2
Vo2 vs Io1
SLTS218B - SEPTEMBER 2003 - REVISED NOVEMBER 2004


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