SRSB-40U05LG Bel Fuse Inc, SRSB-40U05LG Datasheet - Page 5

• Manufacturer Part Number: SRSB-40U05LG
• Description: CONV DC/DC 8A 5.0VDC SMD
• Manufacturer: Bel Fuse Inc
• Series: xRSB-40Ur
• Type: Isolated with Remote On/Off and UVLOr

Specifications of SRSB-40U05LG

• Output: 5V
• Number Of Outputs: 1
• Power (watts): 40W
• Mounting Type: Surface Mount
• Voltage - Input: 18 ~ 75V
• Package / Case: 8-DIP SMD Module, 1/16 Brick
• 1st Output: 5 VDC @ 8A
• Size / Dimension: 1.30" L x 0.90" W x 0.45" H (33mm x 22.9mm x 11.34mm)
• Power (watts) - Rated: 40W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 87%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: SRSB-40U05L

Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: kΩ). The Trim Down resistor should be
connected between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim pin
and the Vout. Only one of the resistors should be used for any given application.
1) Trim Equations for Vo=1.2 V
Vo_req=Desired (trimmed) output voltage [V]
2) Trim Equations for Vo=1.5 V - 12 V
Vo_req=Desired (trimmed) output voltage [V]
Note:
Note:
R
R
R
R
trimup
trimup
trimdown
trimdown
ISOLATED DC/DC CONVERTERS
24 Vdc/48 Vdc Input 1.2 Vdc - 12 Vdc / 18 A - 3.5 A Outputs, 1/16 Brick
=
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
=
(
100
=
(
delta
delta
=
100
delta
511
delta
+
511
+
delta
. 0
=
=
delta
6125
. 1
−
(
(
Vo
Vo
−
225
10
)
10
⋅
Vo
.
)
_
_
⋅
22
⋅
delta
.
⋅
Vo
22
req
req
Vo
Vo
delta
⋅
. 5
⋅
11
511
−
−
Vo
−
Vo
313
−
)
)
626
×
×
100
−
100
10
−
[ ]
.
[ ]
10
22
%
%
Vo=1.202 V
.
22
Module
Module
GND
GND
Vo
Trim
Vo
Trim
Rtrimdown
Rtrimup