Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
BTCPower
TM
60
50
Rtrim-up (Kohm)
40
30
20
10
0
1
2
3
4
5
6
7
8
9 10
Trim up Vout change %
Rtrim-up(K)
53.0
20.4
12.6
9.1
7.2
5.9
5.0
4.3
3.8
3.4
Vout(v)
2.525
2.550
2.575
2.600
2.625
2.650
2.675
2.700
2.725
2.750
Trim up Vout %
1
2
3
4
5
6
7
8
9
10
Table 1: Rtrim-up resistor values
Fig 5. Trim Up Resistance for reference chart
7.0
6.0
Rtrim-dn (Kohm)
5.0
4.0
3.0
2.0
1.0
0.0
1
2
3
4
5
6
7
8
9 10
Rtrim-dn(K)
5.8
3.2
2.1
1.5
1.2
0.9
0.7
0.6
0.5
0.4
Vout(v)
2.475
2.450
2.425
2.400
2.375
2.350
2.325
2.300
2.275
2.250
Trim down Vout %
1
2
3
4
5
6
7
8
9
10
Trim down Vout change %
Table 2: Rtrim-down resistor values
Fig 6 Trim Down Resistance for reference chart
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
6 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HBO80A-48-2.5 Rev1.2 12-8-03
BTCPOWER [ BROADBAND TELCOM POWER, INC. ]
