JW030B-M Lineage Power, JW030B-M Datasheet - Page 13

• Manufacturer Part Number: JW030B-M
• Description: CONVERTER DC/DC 12V 30W OUT
• Manufacturer: Lineage Power
• Series: JW030r
• Type: Isolated with Remote On/Offr

Specifications of JW030B-M

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 30W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 9-DIP Module
• 1st Output: 12 VDC @ 2.5A
• Size / Dimension: 2.40" L x 2.28" W x 0.50" H (61mm x 57.9mm x 12.7mm)
• Power (watts) - Rated: 30W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 83%
• Approvals: CE, CSA, UL, VDE
• Output Power: 30W
• Output Current: 3A
• Input Voltage: 48V
• Output Voltage: 12V
• Screening Level: Industrial
• Product Length (mm): 61mm
• Product Height (mm): 12.7mm
• Product Depth (mm): 57.9mm
• Mounting Style: Through Hole
• Pin Count: 9
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Not Compliant

March 26,2008
Feature Descriptions
Output Voltage Set-Point Adjustment
(Trim)
Output voltage trim allows the user to increase or
decrease the output voltage set point of a module. This
is accomplished by connecting an external resistor
between the TRIM pin and either the SENSE(+) or
SENSE(–) pins. With an external resistor between the
TRIM and SENSE(–) pins (R
set point (V
lowing equation determines the required external-resis-
tor value to obtain an output voltage change of %ý.
For example, to lower the output voltage by 30%, the
external resistor value must be:
With an external resistor connected between the TRIM
and SENSE(+) pins (R
point (V
equations determine the required external-resistor
value to obtain an output voltage change of %ý.
JW030A-M, B-M, C-M:
For example, to increase the output voltage of the
JW030B-M by 5%, the external resistor value must be:
JW030D-M, F-M, G-M:
For example, to increase the output voltage of the
JW030D-M by 5%, the external resistor must be:
Lineage Power
R
R
R
R
R
R
adj-down
adj-down
adj-up
adj-up
adj-up
adj-up
O, adj
=
=
=
=
=
=
⎛
⎝
⎛
⎝
⎛
⎝
⎛
⎝
O, adj
12.0
---------- - 1
) increases (see Figure 26). The following
V
----------------- - 1
V
------------------- 1
-------------- - 1
1.235
2.5
⎛
⎝
⎛
⎝
1.235
1 %ý
---------------- -
O
1 0.3
---------------- -
O, nom
2.5
2
,
–
%ý
0.3
) decreases (see Figure 25). The fol-
–
nom
–
–
–
⎞ 1
⎠
–
⎞ 10 kΩ
⎠
⎞ 10 kΩ
⎠
⎛
⎝
⎞ 1
⎠
-------------------- -
⎞ 1
⎠
⎛
⎝
adj-up
⎞ 1
⎠
-------------------- -
⎛
⎝
+
0.05
⎛
⎝
------------------ -
------------------ -
+
0.05
0.05
+
%ý
), the output voltage set
+
%Δ
0.05
adj-down
%Δ
=
%Δ
(continued)
⎞ 10 kΩ
⎠
23.33 kΩ
⎞ 10 kΩ
⎠
⎞ 10 kΩ
⎠
⎞ 10 kΩ
⎠
), the output voltage
=
=
798 kΩ
130 kΩ
The combination of the output voltage adjustment and
sense range and the output voltage given in the Fea-
ture Specifications table cannot exceed 110% of the
nominal output voltage between the V
terminals.
The JW030-Series Power Modules have a fixed cur-
rent-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.
Figure 25. Circuit Configuration to Decrease
Figure 26. Circuit Configuration to Increase Output
Output Overvoltage Protection
The output overvoltage clamp consists of control cir-
cuitry, independent of the primary regulation loop, that
monitors the voltage on the output terminals. The con-
trol loop of the clamp has a higher voltage set point
than the primary loop (see Feature Specifications
table). This provides a redundant voltage-control that
reduces the risk of output overvoltage.
V
ON/OFF
CASE
V
V
ON/OFF
CASE
V
I
I
I
I
(+)
(–)
(+)
(–)
Output Voltage
Voltage
SENSE(+)
SENSE(+)
36 Vdc to 75 Vdc Inputs; 30 W
SENSE(–)
SENSE(–)
V
V
TRIM
TRIM
V
V
O
O
O
O
(+)
(+)
(–)
(–)
R
adj-down
R
adj-up
O
(+) and V
R
R
LOAD
LOAD
O
8-748(C)b
8-715(C)b
(–)
13