LW020A8 Lineage Power, LW020A8 Datasheet - Page 10

• Manufacturer Part Number: LW020A8
• Description: CONVERTER DC/DC 5V 20W OUT
• Manufacturer: Lineage Power
• Series: LW020r
• Type: Isolated with Remote On/Offr

Specifications of LW020A8

• Output: 5V
• Number Of Outputs: 1
• Power (watts): 20W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 8-DIP Module
• 1st Output: 5 VDC @ 4A
• Size / Dimension: 2.00" L x 2.00" W x 0.39" H (50.8mm x 50.8mm x 9.9mm)
• Power (watts) - Rated: 20W
• Operating Temperature: -40°C ~ 110°C
• Efficiency: 81%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

36 Vdc to 75 Vdc Inputs; 20 W
Feature Descriptions
Remote On/Off
The module has internal capacitance to reduce noise at the ON/OFF pin. Additional capacitance is not generally
needed and may degrade the start-up characteristics of the module.
Output Voltage Adjustment
Output voltage trim allows the user to increase or decrease the output voltage set point of a module. This is accom-
plished by connecting an external resistor between the TRIM pin and either the V
nal resistor between the TRIM and V
external resistor between the TRIM pin and V
The following equations determine the required external resistor value to obtain an output voltage change of ý%:
The adjusted output voltage cannot exceed 110% of the nominal output voltage between the V
minal.
The modules have a fixed current-limit set point. Therefore, as the output voltage is adjusted down, the available
output power is reduced. In addition, the minimum output current is a function of the output voltage. As the output
voltage is adjusted down, the minimum required output current can increase.
10
R
R
LW020G
LW020F
LW020A
LW020B
LW020C
Device
adj-down
adj-up
=
=
------------------ - b
d
c d
--------------------------------------------------- - b
•
[
a
Δ
15.40
21.50
(continued)
14.0
14.0
4.02
%
•
a
(
–
1
Δ%
–
kΩ
Δ%
51.10
51.10
16.90
15.40
16.90
(continued)
)
b
–
1
Figure 14. Remote On/Off Implementation
]
O
–
(+) pins (R
7.02
5.19
2.01
1.58
1.76
kΩ
c
O
(–) pin (R
adj-down
V
12.24
I
2.70
9.80
on/off
on/off
2.0
2.0
+
-
d
), the output voltage set point (V
adj-up
V
V
REMOTE
ON/OFF
I
I
(+)
(-)
), V
–5% V
O, adj
246.5 k¾
356.3 k¾
110.9 k¾
75.3 k¾
19.3 k¾
increases.
O
R
adj-down
O
(+) or V
O, adj
O
(–) pins. With an exter-
) decreases. With an
+5% V
O
(+) and V
88.9 k¾
52.8 k¾
23.3 k¾
16.0 k¾
18.2 k¾
Lineage Power
O
April 2008
R
adj-up
O
(–) ter-
8-758(C).a