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Evaluation Procedure
(DEP-003)
The IPM- C Series POL converters
The IPM Series, single output, non-isolated
point of load DC/DC converters, are the latest
offering from a world leader in power systems
technology and manufacturing ― Delta
Electronics,
Inc.
They
3V~5.5V (IPM04C) or an 8V~14V (IPM12C)
source and provide a programmable output
voltage of 0.8V to 3.3V(IPM04C) or 0.8V to
5V(IPM12C). With creative design technology
and optimization of component placement,
these
converters
possess
electrical and thermal performance, as well
as offering extremely high reliability under
highly stressful operating conditions. All
models are protected against abnormal
input/output voltage and current conditions.
This document guides the user through the
evaluation procedure to qualify a POL module.
The data shown in this Evaluation Procedure
is for the SIP and SMT Package Type POL
evaluation
board.
Please
appropriate technical data sheet for detailed
performance and technical information for the
specific POL units.
Evaluation Procedure
EP_IPMC_04292005
operate
from
a
outstanding
refer
to
the
1
IPM Series
1.0 Purpose
This document guides the user in performing
electronic measurements on an IPM POL (point
of load) DC/DC converter using the Delta
Evaluation Board.
2.0 Relevant Documentation
The documentation and background information
listed below is relevant to this evaluation
procedure:
․ Applicative date sheets for IPM Series unit
under evaluation.
․ Power Module Evaluation Board Schematic.
․ Power Module Evaluation Board Layout.
․ General Test and Safety Procedures.
Delta Electronics, Inc.
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Related Manuals for Delta Electronics IPM- C Series
Summary of Contents for Delta Electronics IPM- C Series
- Page 1 Evaluation Procedure (DEP-003) The IPM- C Series POL converters The IPM Series, single output, non-isolated point of load DC/DC converters, are the latest offering from a world leader in power systems technology and manufacturing ― Delta Electronics, Inc. They operate 3V~5.5V (IPM04C) or an 8V~14V (IPM12C)
-
Page 2: Equipment Required
3.0 Equipment Required ․ DC Power Supply 0 - 20 V @ 0 - 20A (Agilent 6574A 0 -60V/0 - 35A or equivalent). ․Oscilloscope (Tektronix TDS 460A or equivalent) 4 Channel 400 MHz, equipped with a x1 scope probe, a x10 scope probe, and two BNC cables (length less than 20 inches/500mm) ․Digital multimeters, one with 20A range and ideally all with 4 1/2 digit resolution... - Page 3 Evaluation Board. Set function of DMM1 to DCA to measure the input current. 4.2 Connect one wire from the “-” lead of the power supply (Item 3.1) to the “Vin-“ pin of the Evaluation Board. Note: Use stranded leads at least equivalent to 14 AWG for all connections in sections 4.1 and 4.2.
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Page 4: Tests Performed
6.0 Tests Performed The following tests are performed at room temperature (+25 C). Input Characteristics Input Voltage Range. Under-Voltage Locko No Load Input Current 6.2 O utput Characteristics Line Regulation. Load Regulation. Output Regulation Output Voltage Se t-Point Adjustment Range. 6.3 D ynamic Characteristics Maximum Output Voltage Deviation (due to step change in load). - Page 5 SW3 is us ed for the trim-down or trim-up setting of the Output Voltage. For IPM, if the converter requires a trim up, set SW3 to the Trim-up position. If the converter requires a trim down, set SW3 to the Trim-down position. For normal operating, turn off the SW3. SW4 and SW5 are used for the Output Voltage Set-Point Adjustment by externa resistors.
- Page 6 7.2 Initial Power Up 1) Turn the power supply ON, set the current limit on power supply (refer to specification of either converter) and increase the input voltage (use DMM2 to monitor the voltage) until it reaches the desired value.
- Page 7 8.2 Output Characteristics 8.2.1 Line Regulation Line Regulation Deviation is defined as the change in output voltage caused by varying the input voltage over a specif ied range while the output load and temperature remain constant. Test 1) Turn on the fan. 2 Set the output power to the desired operating point.
- Page 8 .2.4 Output Voltage Set-Point Adjustment Range (Trim) utput Voltage Set-Point Adjustment can be carried out by using an external resistor or external voltage source to increase or decrease the output voltag e data sheet for the detailed specification). Refer all trim voltage require 7.1-7, 7.1.8, and refer all the design numbers to Evaluation Board Schematic.
- Page 9 For I M04C series o implement Trim-up by using an external resistor, R TRIM pin and groun d. For IPM04C0A0R06A, Please refer to the IPMR table for the desired Vout. The value of R can be calculated by the following equation and the datasheet can trim-up also be referred for further information.
- Page 10 (2) Output Voltage Set-Point Adjustment by using an external voltage source For IPM12C series Output voltage of IPM12C is programmable while applying a voltage between the TRIM and GND pins. The following equation can be used to determine the value of Vtrim needed for a desired output voltage Vo: Vtrim = 0.7439 –...
- Page 11 8.3 Dynamic Characteristics 8.3.1 Output Voltage Deviation Output Voltage Deviation is defined as the response of the converter to a sudden step change in the output load current. The output voltage deviation is characterized by two parameters: Maximum Output Voltage Deviation and Response Time (please refer to the data sheet for the detailed specification).
- Page 12 Test (Turn on the module by using the external switch) 1) Turn on the fan. 2) Turn on the input power supply and set it to the desired operating point. 3) Set channel 1 on the oscilloscope to be DC coupled and to the appropriate range for the input voltage.
- Page 13 7) Use the following formulas to calculate the efficiency: Efficiency= (Pout/Pin) × 100(%) Pin = Iin × Vin Pout = Iout × Vout For IPM12C series The following graph shows the efficiency results of the IPM12C0A0R04A converter measured at different operating points, the output voltage was set at 5V. For IPM04C series The following graph shows the efficiency results of the IPM04C0A0R06A converter measured at different operating points, the output voltage was set at 3.3V.
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Page 14: Appendix A- Evaluation Board Schematic
Appendix A- Evaluation Board Schematic... -
Page 15: Appendix B - Evaluation Board Layout (Top View)
Appendix B - Evaluation Board Layout (Top View) -
Page 16: Appendix C - Evaluation Board Layout (Bottom View)
Appendix C - Evaluation Board Layout (Bottom View) CONTACT: www.delta.com.tw/dcdc USA: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: DCDC@delta-corp.com WARRANTY Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon request from Delta.