108975459 Lineage Power, 108975459 Datasheet - Page 8

• Manufacturer Part Number: 108975459
• Description: Module DC-DC 1-OUT 5V 6.6A 6-Pin SMT Tray
• Manufacturer: Lineage Power
• Type: Step Downr

Specifications of 108975459

• Package: 6SMT
• Output Current: 6.6 A
• Output Voltage: 5 V
• Input Voltage: 24 V
• Number Of Outputs: 1

Data Sheet
October 5, 2009
Test Configurations
Figure 13. Input Reflected Ripple Current Test Setup.
Figure 14. Output Ripple and Noise Test Setup.
Figure 15. Output Voltage and Efficiency Test Setup.
LINEAGE
Efficiency
NOTE: All voltage measurements to be taken at the module
TO OSCILLOSCOPE
NOTE: Measure input reflected ripple current with a simulated
R
R
V
V
NOTE: All voltage measurements to be taken at the module
distribution
distribution
O
O
(+)
( – )
POWER
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
source inductance (L
possible battery impedance. Measure current as shown
above.
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
R
R
contact
contact
η =
@ 20°C 100kHz
E.S.R.<0.1Ω
C
COPPER STRIP
1uF .
S
12μH
L
V
220μF
TEST
IN
V
V
Vin+
Vin-
O
IN
TEST
. I
. I
GROUND PLANE
) of 12μH. Capacitor C
O
IN
10uF
Vout+
Vout-
V
x 100 %
O
33μF
SCOPE
18-36Vdc Input; 3.3V & 5Vdc Output; 6.6A - 10A Output Current
CURRENT PROBE
R
R
contact
contact
Vin+
S
Vin-
RESISTIVE
LOAD
offsets
R
R
distribution
distribution
R
LOAD
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance source. A highly inductive source
impedance can affect the stability of the power module.
For the test configuration in Figure 13, a 33μF
electrolytic capacitor (ESR<0.7Ω at 100kHz), mounted
close to the power module helps ensure the stability of
the unit. 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 60950-1-3, CSA C22.2 No. 60950-00, and VDE
0805:2001-12 (IEC60950-1).
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:
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.
For input voltages exceeding –60 Vdc but less than or
equal to –75 Vdc, these converters have been evaluated
to the applicable requirements of BASIC INSULATION
between secondary DC MAINS DISTRIBUTION input
(classified as TNV-2 in Europe) and unearthed SELV
outputs."All flammable materials used in the
manufacturing of these modules are rated 94V-0 and
UL60950 A.2 for reduced thicknesses. The input to
these units is to be provided with a maximum 3A fast-
acting fuse in the unearthed lead."
HC006/010 Series DC-DC Power Module:
The input source is to be provided with reinforced
insulation from any other hazardous voltages, including
the ac mains.
One V
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, or both
8