LM5072EVAL National Semiconductor, LM5072EVAL Datasheet - Page 14

• Manufacturer Part Number: LM5072EVAL
• Description: BOARD EVALUATION LM5072
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM5072EVAL

• Main Purpose: Special Purpose DC/DC, Power Over Ethernet
• Outputs And Type: 1, Isolated
• Power - Output: 9.9W
• Voltage - Output: 3.3V
• Current - Output: 3A
• Voltage - Input: 38 ~ 60V
• Regulator Topology: Flyback
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM5072
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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A Note For Using The Efficiency
Optimized EP13 Power
Transformer DA2383
Please note that the DA2383 is a single output transformer.
When using a DA2383 to obtain better efficiency (See Figure
3 for the applicable load and AUX input voltage levels), also
Appendix: LM5072 Evaluation Board Bill of Materials
LED1
ITEM
BR1
BR2
C10
C15
C16
C19
C20
C21
C22
C23
C25
C26
C27
C28
C31
C1
C2
C3
C4
C5
C6
C7
C8
C9
D1
D2
D3
D4
D5
D6
D7
P1
P2
P3
P4
J1
J2
J3
J4
J5
L1
L3
CBRHD-01
CBRHD-01
CRCW08052492F
C0805C681F5GAC
NU
C5750X7R2A475M
NU
EEV-HA2A220P
C3216X5R0J106M
C3216X5R0J106M
C3216X5R0J106M
C3216X5R0J106M
C3216X5R0J106M
EMVY6R3ADA331MF80G
C2012X5R1C105K
C2012X5R1C474K
C0805C473K5RAC
C0805C102K5RAC
C0805C102K5RAC
C0805C331K5RAC
C0805C473K5RAC
C3216X7R2A104K
C4532X7R3D222K
C0805C473K5RAC
S3BB-13
NU
CMR1U-01M
CMHD4448
12CWQ03FN
CMR1U-01M
CMHD4448
RJ-45-8N-B
PJ-102A
PJ-102A
3104-2-00-01-00-00-080
3104-2-00-01-00-00-080
DO3308P-103MLD
DO1813P-331HC
SSL-LXA228GC-TR11
5012K-ND
5012K-ND
5012K-ND
5012K-ND
PART NUMBER
DIODE BRIDGE, SMDIP, CENTRAL
DIODE BRIDGE, SMDIP, CENTRAL
RESISTOR
CAPACITOR, CER, CC0805, KEMET
CAPACITOR, CER, CC2220, TDK
CAPACITOR, AL ELEC, PANASONIC
CAPACITOR, CER, CC1206, TDK
CAPACITOR, CER, CC1206, TDK
CAPACITOR, CER, CC1206, TDK
CAPACITOR, CER, CC1206, TDK
CAPACITOR, CER, CC1206, TDK
CAPACITOR, AL ELEC, CHEMI-ON
CAPACITOR, CER, CC0805, TDK
CAPACITOR, CER, CC0805, TDK
CAPACITOR, CER, CC0805, KEMET
CAPACITOR, CER, CC0805, KEMET
CAPACITOR, CER, CC0805, KEMET
CAPACITOR, CER, CC0805, KEMET
CAPACITOR, CER, CC0805, KEMET
CAPACITOR, CER, CC1206, TDK
CAPACITOR, CER, CC1812, TDK
CAPACITOR, CER, CC0805, KEMET
DIODE, SMB, DIODE INC
DIODE, SMA, CENTRAL
DIODE, SOD123, CENTRAL
SCHOTTKY, TO252, IR
DIODE, SMA, CENTRAL
DIODE, SOD123, CENTRAL
RJ-45 CONNECTOR
POWER JACK
POWER JACK
POST, MILL MAX
POST, MILL MAX
SM INDUCTOR, COILCRAFT
SM INDUCTOR, COILCRAFT
LED,GREEN, LUMEX
TEST POINT, KEYSTONE
TEST POINT, KEYSTONE
TEST POINT, KEYSTONE
TEST POINT, KEYSTONE
14
remember to connect D5’s cathode to DA2383’s pin 9 with a
short jumper wire. This is because the secondary winding of
DA2382 uses Pins 6 through 9 of the transformer bobbin,
unlike DA2257 that only uses of Pins 7 and 8 for the sec-
ondary winding. The maximum converter stage efficiency at
3.3A will be expected to be greater than 84%.
DESCRIPTION
100nF, 100V
4.7µF, 100V
330µF, 6.3V
0.47µF, 16V
125mA, 75V
125mA, 75V
22µF, 100V
330pF, 50V
2.2nF, 2 kV
0.5A, 100V
0.5A, 100V
10µF, 6.3V
10µF, 6.3V
10µF, 6.3V
10µF, 6.3V
10µF, 6.3V
1.0µF, 16V
680p, 50V
47nF, 50V
47nF, 50V
47nF, 50V
3A, 100V
1A, 100V
12A, 30V
1A, 100V
1nF, 50V
1nF, 50V
VALUE
0.33µH
24.9K
10µH