QW030A Lineage Power, QW030A Datasheet - Page 7

• Manufacturer Part Number: QW030A
• Description: CONVERTER DC/DC 5V 30W OUT
• Manufacturer: Lineage Power
• Series: QWr
• Type: Isolated with Remote On/Offr

Specifications of QW030A

• Output: 5V
• Number Of Outputs: 1
• Power (watts): 30W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 8-DIP Module
• 1st Output: 5 VDC @ 6A
• Size / Dimension: 2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
• Power (watts) - Rated: 30W
• Operating Temperature: -40°C ~ 105°C
• Efficiency: 86%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: No RoHS Version Available

April 2002
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power mod-
ule. If the input source inductance exceeds 4 µH, a
33 µF electrolytic capacitor (ESR < 0.7 Ω at 100 kHz)
mounted close to the power module helps ensure sta-
bility of the unit.
Safety Considerations
QW
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL 60950, CSA C22.2 No. 60950-00, and VDE
0805 (EN60950-1).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module’s output to be considered
meeting the requirements of safety extra-low voltage
(SELV), all of the following must be true:
I
I
I
I
Note: Do not ground either of the input pins of the
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
The input to the QW030 is to be provided with a maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
The input to the QC030 is to be provided with a maxi-
mum 10 A normal-blow fuse in the ungrounded lead.
Tyco Electronics Corp.
The input source is to be provided with reinforced
insulation from any hazardous voltages, including the
ac mains.
One V
both the input and output pins are to be kept floating.
The input pins of the module are not operator acces-
sible.
Another SELV reliability test is conducted on the
whole system, as required by the safety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module’s output.
Modules
module without grounding one of the output pins.
This may allow a non-SELV voltage to appear
between the output pin and ground.
I
pin and one V
O
pin are to be grounded, or
(continued)
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
Feature Descriptions
Overcurrent Protection
To provide protection in a fault (output overload) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output-current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
Remote On/Off
Two remote on/off options are available. Positive logic
remote on/off turns the module on during a logic-high
voltage on the remote ON/OFF pin, and off during a
logic low. Negative logic remote on/off, device code suf-
fix “1,” turns the module off during logic-high voltage
and on during a logic low.
To turn the power module on and off, the user must
supply a switch to control the voltage between the
on/off terminal and the V
switch may be an open collector or equivalent (see
Figure 4). A logic low is V
maximum I
should maintain a logic-low voltage while sinking 1 mA.
During a logic high, the maximum V
the power module is 15 V. The maximum allowable
leakage current of the switch at V
If not using the remote on/off feature, do one of the
following:
For positive logic, leave the ON/OFF pin open.
For negative logic, short the ON/OFF pin to V
Figure 4. QC/QW030-Series Remote On/Off
Implementation
on/off
during a logic low is 1 mA. The switch
V
I
on/off
on/off
+
-
I
(–) terminal (V
on/off
V
V
REMOTE
ON/OFF
I
I
(+)
(-)
= –0.7 V to 1.2 V. The
on/off
on/off
= 15 V is 50 µA.
on/off
generated by
). The
I
(–).
8-758(C).a
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