JAHW075F1 Lineage Power, JAHW075F1 Datasheet - Page 9

• Manufacturer Part Number: JAHW075F1
• Description: CONVERTER DC/DC 3.3V 50W OUT
• Manufacturer: Lineage Power
• Series: JAHWr
• Type: Isolated with Remote On/Offr

Specifications of JAHW075F1

• Output: 3.3V
• Number Of Outputs: 1
• Power (watts): 50W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 9-DIP Module
• 1st Output: 3.3 VDC @ 15A
• Size / Dimension: 2.40" L x 2.28" W x 0.50" H (61mm x 57.9mm x 12.7mm)
• Power (watts) - Rated: 50W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 88.6%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

April 2008
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 tan-
Figure 17. Peak-to-Peak Output Noise
Note: All measurements are taken at the module terminals. When
Figure 18. Output Voltage and Efficiency
Lineage Power
BATTERY
Figure 16. Input Reflected-Ripple Test Setup
SUPPLY
η
inductance (L
tery impedance. Measure current as shown above.
talum 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.
RESISTANCE
V
V
=
CONTACT
O
O
(+)
(–)
TO OSCILLOSCOPE
⎛
⎝
[
----------------------------------------------- -
V
[
Measurement Test Setup
Measurement Test Setup
I
V
I
O
I
(+) – V
(+) – V
TEST
COPPER STRIP
1.0 μF
C
ESR < 0.1 Ω
@ 20 °C, 100 kHz
) of 12 µH. Capacitor C
V
V
S
I
I
(+)
(–)
220 μF
O
I
(–)
(–)
12 μH
L
SENSE(+)
SENSE(–)
TEST
]I
]I
10 μF
I
O
V
V
⎞ x 100
⎠
O
O
(+)
(–)
ESR < 0.7 Ω
dc-dc Converters; 36 to 75 Vdc Input, 3.3 Output; 33 W to 66 W
SCOPE
@ 100 kHz
DISTRIBUTION LOSSES
CURRENT
S
I
33 μF
O
PROBE
%
offsets possible bat-
CONTACT AND
RESISTIVE
LOAD
LOAD
8-513 (F).d
8-203 (F).l
V
V
8-749 (F)
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 mod-
ule. For the test configuration in Figure 16, 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. For other highly inductive source
impedances, consult the factory for further application
guidelines.
Output Capacitance
High output current transient rate of change (high di/dt)
loads may require high values of output capacitance to
supply the instantaneous energy requirement to the
load. To minimize the output voltage transient drop dur-
ing this transient, low E.S.R. (equivalent series resis-
tance) capacitors may be required, since a high E.S.R.
will produce a correspondingly higher voltage drop dur-
ing the current transient.
Output capacitance and load impedance interact with
the power module’s output voltage regulation control
system and may produce and ‘unstable’ output condi-
tion for the required values of capacitance and E.S.R..
Minimum and maximum values of output capacitance
and of the capacitor’s associated E.S.R. may be dic-
tated, depending on the modules control system.
The process of determining the acceptable values of
capacitance and E.S.R. is complex and is load-depen-
dant. Lineage provides Web-based tools to assist the
power module end-user in appraising and adjusting the
effect of various load conditions and output capaci-
tances on specific power modules for various load con-
ditions.
1. Access the web at www.lineagepower.com
2. Under Products, click on the DC-DC link
3. Under Design Tools, click on Application Tools Download
4. Various design tools will be found, including tools for determining
§Not available for all codes, Where not available, use minimum values in table
stability of power module systems
above
§
.
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