HW025FG Lineage Power, HW025FG Datasheet - Page 10

• Manufacturer Part Number: HW025FG
• Description: CONVR DC/DC 2.5/3.3V 25W OUT T/H
• Manufacturer: Lineage Power
• Series: HWr
• Type: Isolated with Remote On/Offr

Specifications of HW025FG

• Output: 3.3V, 2.5V
• Number Of Outputs: 2
• Power (watts): 25W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 9-DIP Module
• 1st Output: 3.3 VDC @ 4A
• 2nd Output: 2.5 VDC @ 4A
• Size / Dimension: 2.26" L x 2.14" W x 0.29" H (57.4mm x 54.4mm x 7.4mm)
• Power (watts) - Rated: 25W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 83%
• Approvals: CE, CSA, UL, VDE
• Product: Isolated
• Output Power: 13 W
• Input Voltage Range: 36 V to 75 V
• Output Voltage (channel 1): 3.3 V
• Output Current (channel 1): 4 A
• Output Voltage (channel 2): 2.5 V
• Output Current (channel 2): 4 A
• Isolation Voltage: 1.5 KV
• Package / Case Size: DIP
• Output Type: Isolated
• Output Voltage: 3.3 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: No

HW025 Dual Positive Output-Series Power Modules: dc-dc Converters:
36 Vdc to 75 Vdc Input, Dual Positive Outputs; 25W
Test Configurations
Note: Measure input reflected-ripple current with a simulated source
Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or
Figure 16. Peak-to-Peak Output Noise Measurement
Note: All measurements are taken at the module terminals. When
Figure 17. Output Voltage and Efficiency
10
10
BATTERY
Figure 15. Input Reflected-Ripple Test Setup
COM
inductance (L
tery impedance. Measure current as shown above.
tantalum capacitor. Scope measurement should be made using
a BNC socket. Position the load between 51 mm and 76 mm
(2 in. and 3 in.) from the module.
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
V
V
SUPPLY
RESISTANCE
O1
O2
CONTACT
OSCILLOSCOPE
=
Test Setup
Measurement Test Setup
J
-------------------------------------------------------------------------- - x 100
2
I
COPPER STRIPS
I
TO
1
TEST
1.0 F
1.0 F
V
) of 12 µH. Capacitor C
C
ESR < 0.1
@ 20 ºC 100 kHz
V
S
V
V
O J
I
(+) – V
I
I
220 F
(+)
(–)
(+)
12 H
L
TEST
–
COM
V
V
I
10 F
10 F
V
(–) I
O1
O2
COM
DISTRIBUTION LOSSES
I
I
I
SCOPE
O
O J
CONTACT AND
CURRENT
S
PROBE
offsets possible bat-
LOAD
LOAD
R
R
LOAD1
LOAD2
8-2736 (F)
8-3299 (F)
8-3300 (F)
V
V
%
I
I
(+)
(–)
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
module. For the test configuration in Figure 15,
a 33 µF electrolytic capacitor (ESR < 0.7
mounted close to the power module helps ensure
stability of the unit. For other highly inductive source
impedances, consult the factory for further application
guidelines.
Safety Considerations
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, VDE 0805
(EN60950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75Vdc), for the module’s output to be considered as
meeting the requirements for 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 these units is to be provided with
a maximum 3 A normal-blow fuse in the
ungrounded lead.
The input source is to be provided with reinforced
insulation from any other hazardous voltages,
including the ac mains.
One V
or both the input and output pins are to be kept
floating.
The input pins of the module are not operator
accessible.
Another SELV reliability test is conducted on the
whole system (combination of supply source and
subject module), as required by the safety agencies,
to verify that under a single fault, hazardous voltages
do not appear at the module’s output.
module without grounding one of the output pins.
This may allow a non-SELV voltage to appear
between the output pins and ground.
IN
pin and one V
OUT
pin are to be grounded,
Data Sheet
April 2008
at 100 kHz)
Lineage Power