0RCY-C2T030 Datasheet, PDF (3/6 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
48 Vdc Input 3.3 Vdc /30 A Output
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between
the Trim pin and GND pin. The Trim Up resistor should be connected between the Trim pin and the Vout pin. Only
one of the resistors should be used for any given application.
Rtrimdown= ⁵¹¹ −10.22[kΩ]
delta
Rtrimup = ^{(100+ delta) ⋅Vo ⋅ 5.11− 626} −10.22[kΩ]
1.225⋅ delta
Note:
delta = ^{(Vo _ req − Vo)} ×100 [%]
Vo
Vo_req=Desired (trimmed) output voltage [V]
Output voltage Vo=3.3 V
Vout
Module Trim
Rtrimdown
GND
Vout
Module Trim
Rtrimup
GND
Efficiency Data
94%
92%
90%
88%
86%
84%
82%
80%
78%
76%
74%
72%
70%
3.00
Efficiency Curve
7.50 15.00 22.50
Output Current (A)
30.00
36 V
48 V
75 V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com