Lineage Power 5
Data Sheet LAW005-Series Power Modules; dc-dc Converters:
April 2008 36 Vdc to 75 Vdc Input; 5 W
Test Configurations
1-0304
Note: Input reflected-ripple current is measured with a simulated
source impedance of 12 µH. Capacitor Cs offsets possible
battery impedance. Current is measured at the input of the
module.
Figure 1. Input Reflected-Ripple Test Setup
1-0305
Note: Use a 0.1 µF ceramic capacitor. Scope measurement should
be made using a BNC socket. Position the load between
50.8 mm and 76.2 mm (2 in. and 3 in.) from the module.
Figure 2. Peak-to-Peak Output Noise
Measurement Test Setup
1-0306
Note: All measurements are taken at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
Figure 3. Output Voltage and Efficiency
Measurement Test Setup
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, and VDE
0805 (IEC60950).
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:
nThe input source is to be provided with reinforced
insulation from any other hazardous voltages, includ-
ing the ac mains.
nOne VI pin and one VO pin are to be grounded, or
both the input and output pins are to be kept floating.
nThe input pins of the module are not operator acces-
sible.
nAnother 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.
Note: Do not ground either of the input pins of the
module without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pins and ground.
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 maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
Feature Description
Output Overvoltage Protection (single output mod-
ules only)
Output overvoltage protection is not a feature on dual
output modules. For single output modules, the output
overvoltage protection consists of a Transient Voltage
Suppressor (TVS) diode across the output terminals.
During an ouput overvoltage fault condition, this diode
protection clamps the output within the voltages shown
in Table 5
TO OSCILLOSCOPE
CS 220 µF
IMPEDANCE < 0.1 Ω
@ 20 ˚C, 100 kHz
VI(+)
VI(-)
LTEST
BATTERY
12 µH
VO (+)
VO (–)
RESISTIVE
LOAD
SCOPE0.1 µF
COPPER STRIP
VI(+)
VI(-)
VO(+)
VO(-)
IIIO
SUPPLY
CONTACT RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
ηVO+()–VO(–)[]IO
VI+()–VI(–)[]II
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