TDK Veta iHA48040A033V* User's Manual
Contents
1. Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 1 17 Datasheet DC DC Power Modules Veta iHA48040A033V Half Brick Series 48V Input 3 3V 40A Output Information furnished by TDK Innoveta is believed to be accurate and reliable However TDK Innoveta assumes no responsibility for its use nor for any infringement of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights of TDK Innoveta TDK Innoveta components are not designed to be used in applications such as life support systems wherein failure or malfunction could result in injury or death All sales are subject to TDK Innoveta s Terms and Conditions of Sale which are available upon request Specifications are subject to change without notice TDK logo is a trademark or registered trademark of TDK Corporation TDK Innoveta Inc 3320 Matrix Drive Suite 100 Richardson Texas 75082 Phone 877 498 0099 Toll Free 469 916 4747 Fax 877 498 0143 Toll Free 214 239 3101 support tdkinnoveta com http www tdkinnoveta com Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 2 17 Platform Overview Veta iHA48 Series DC DC Power Modules 48V Input 1 2 28V 60A or 350W Output Half Brick The2. Ratings Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device Engineering estimate Common Input Characteristics Unless otherwise specified specifications apply over all Rated Input Voltage Resistive Load and Temperature conditions Characteristic Min Typ Max Unit Notes amp Conditions Operating Input Voltage 36 48 75 Vdc Turn on Voltage 34 6 36 Vdc Turn off Voltage 30 32 7 Vdc Hysteresis 0 5 1 9 Vdc Input High Voltage Turn off 79 80 Vdc Input High Voltage Turn on 75 77 Vdc Hysteresis 2 Vdc Startup Delay Time from application of input voltage 15 mS Vo 0 to 0 1 Vo nom on off on Io Io max Tc 25 C Startup Delay Time from on off 10 mS Vo 0 to 0 1 Vo nom Vin Vi nom Io Io max Tc 25 C Inrush Transient 0 06 A2s Engineering estimate Electrical Data Input Characteristic Min Typ Max Unit Notes amp Conditions Maximum Input Current 4 5 A Vin 0 to Vin max Io max Vo Vo nom Output Voltage Rise Time 20 mS Io Io max Tc 25 C Vo 0 1 to 0 9 Vo nom Input Reflected Ripple 8 7 mApp See input output ripple measurement figure BW 20 MHz Input Ripple Rejection 58 dB 120Hz Engineering estimate Characteristic Min Max Unit Notes amp Conditions Continuous Input Voltage 0 5 80 Vdc Transient Input Vo
3. Veta iHA48 Series power modules operate over a wide 36 75Vdc input voltage range and provide one regulated dc output voltage that is electrically isolated from the input Its high efficiency and superior thermal performance make the Veta Family of power modules ideally suited for power hungry applications in demanding thermal environments This rugged building block is designed to serve as the core of your high reliability system A wide output voltage trim range and remote sensing are standard features enhancing versatility Standard Features Standard Half Brick footprint High efficiency 83 93 5 typical Wide output trim voltage Up to 60A of true usable current Industry leading output power up to 350W Monotonic start up Monotonic start up into a pre biased output Basic insulation 1500 Vdc Constant switching frequency Auto recovery protection o Input under and over voltage o Current limit o Short circuit o Thermal limit Latched output over voltage protection High reliability open frame surface mount construction Baseplate for improved thermal management UL 60950 US and Canada VDE 0805 CB scheme IEC950 CE Mark EN60950 Multiple patents pending Optional Features Remote on off negative logic Auto recovery output over voltage protection Short Thru hole pins 2 79 mm 0 110 Data Sheet Veta iHA48040A033
4. large number of variables in system design TDK Innoveta recommends that the user verify the module s thermal performance in the end application The critical component should be thermo coupled and monitored and should not exceed the temperature limit specified in the derating curve above It is critical that the thermocouple be mounted in a manner that gives direct thermal contact otherwise significant measurement errors may result Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 12 17 Thermal Management An important part of the overall system design process is thermal management thermal design must be considered at all levels to ensure good reliability and lifetime of the final system Superior thermal design and the ability to operate in severe application environments are key elements of a robust reliable power module A finite amount of heat must be dissipated from the power module to the surrounding environment This heat is transferred by the three modes of heat transfer convection conduction and radiation While all three modes of heat transfer are present in every application convection is the dominant mode of heat transfer in most applications However to ensure adequate cooling and proper operation all three modes should be considered in a final system configuration The open frame design of the power module provides an air p
5. the power module of interest The curves in the figures are shown for natural convection through 3 m s 600 ft min The data for the natural convection condition has been collected at 0 3 m s 60 ft min of airflow which is the typical airflow generated by other heat dissipating components in many of the systems that these types of modules are used in In the final system configurations the airflow rate for the natural convection condition can vary due to temperature gradients from other heat dissipating components Heatsink Usage For applications with demanding environmental requirements such as higher ambient temperatures or higher power dissipation the thermal performance of the power module can be improved by attaching a heatsink or cold plate The iHx platform is designed with a base plate with four M3 X 0 5 through threaded mounting fillings for attaching a heatsink or cold plate The addition of a heatsink can reduce the airflow requirement and ensure consistent operation and extended reliability of the system With improved thermal performance more power can be delivered at a given environmental condition Standard heatsink kits are available from TDK Innoveta for vertical module mounting in two different orientations longitudinal perpendicular to the direction of the pins and transverse parallel to the direction of the pins The heatsink kit contains four M3 x 0 5 steel mounting screws and a precut
6. thermal interface pad for improved thermal resistance between the power module and the heatsink The screws should be installed using a torque limiting driver set between 0 35 and 0 55 Nm 3 5 in lbs During heatsink assembly the base plate to heatsink interface must be carefully managed A thermal pad may be required to reduce mechanical assembly related stresses and improve the thermal connection Please contact TDK Innoveta Engineering for recommendations on this subject The system designer must use an accurate estimate or actual measurement of the internal airflow rate and temperature when doing the heatsink thermal analysis For each application a review of the heatsink fin orientation should be completed to verify proper fin alignment with airflow direction to maximize the heatsink effectiveness With respect to TDK Innoveta standard heatsinks contact TDK Innoveta for the latest performance data Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 14 17 Operating Information Over Current Protection The power modules have current limit protection to protect the module during output overload and short circuit conditions During overload conditions the power modules may protect themselves by entering a hiccup current limit mode The modules will operate normally once the output current returns to the specified operating r
7. 040207 877 498 0099 8 17 Electrical Characteristics continued iHA48040A033V 001 Current Limit 0 1 2 3 4 5 10 15 20 25 30 35 40 45 50 Output Current A Output Voltage V Vin 36V Vin 48V Vin 75V Ta 25 Deg C iHA48040A033V 001 Typical Output Current Limit Characteristics vs Input Voltage at Ta 25 degrees iHA48040A033V 001 Typical Output Ripple at nominal Input voltage and full load with external capacitors 47uF 1uF 0 1uF at Ta 25 degrees Input Current Vs Input Voltage 0 1 2 3 4 5 30 35 40 45 50 55 60 65 70 75 Input Voltage V Input Current A Io_min 4 02A Io_mid 20 12A Io_max 40 04A Ta 25 Deg C Output Voltage Vs Input Voltage 0 1 2 3 4 30 32 34 36 38 Input Voltage V Output Voltage V Io_min 4 02A Io_mid 20 12A Io_max 40 04A Ta 25 Deg C Vin decreasing turn off Vin increasing turn on iHA48040A033V 001 Typical Input Current vs Input Voltage Characteristics at Ta 25 degrees iHA48040A033V 001 Typical Output Voltage vs Input Voltage Turn on Turn off Characteristics low voltage at Ta 25 degrees Output Voltage Vs Input Voltage 0 1 2 3 4 76 78 80 Input Voltage V Output Voltage V Vin decreasing turn on Vin increasing turn off Change of Vout Trim Down Resistor Kohm Change of Vout Trim Up Resistor
8. 101 support tdkinnoveta com http www tdkinnoveta com Feature Set On Off Logic Omit pin3 Output OVP Output OCP OTP Threaded Inserts Pin Length 00 Positive No Latching Auto Recovery Auto Recovery Yes 0 145 01 Negative No Latching Auto Recovery Auto Recovery Yes 0 145 02 Positive Yes Auto Recovery Auto Recovery Auto Recovery Yes 0 145 03 Negative Yes Auto Recovery Auto Recovery Auto Recovery Yes 0 145 04 Positive No Latching Auto Recovery Auto Recovery Yes 0 110 05 Negative No Latching Auto Recovery Auto Recovery Yes 0 110 06 Positive Yes Auto Recovery Auto Recovery Auto Recovery Yes 0 110 07 Negative Yes Auto Recovery Auto Recovery Auto Recovery Yes 0 110 Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 4 17 Mechanical Specification Unless otherwise specified tolerances are x x 0 5 mm x xx 0 02 in x xx 0 25 mm x xxx 0 010 in Recommended Hole Pattern top view Pin Assignment PIN FUNCTION PIN FUNCTION 1 Vin 7 Trim 2 On Off 8 Sense 3 Case Omit optional 9 Vout 4 Vin 5 Vout 6 Sense Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 5 17 Absolute Maximum
9. 33V 001 Efficiency 70 75 80 85 90 95 0 4 8 12 16 20 24 28 32 36 40 Output Current A Efficiency Vin 36V Vin 48V Vin 75V Ta 25 Deg C iHA48040A033V 001 Power Dissipation 0 2 4 6 8 10 12 14 0 4 8 12 16 20 24 28 32 36 40 Output Current A Power Dissipation W Vin 36V Vin 48V Vin 75V Ta 25 Deg C iHA48040A033V 001 Typical Efficiency vs Output Current at Ta 25 degrees iHA48040A033V 001 Typical Power Dissipation vs Output current at Ta 25 degrees iHA48040A033V 001 Load Regulation 3 3006 3 3008 3 301 3 3012 3 3014 3 3016 3 3018 3 302 4 8 12 16 20 24 28 32 36 40 Output Current A Output Voltage V Vin 36V Vin 48V Vin 75V Ta 25 Deg C iHA48040A033V 001 Typical Output Voltage vs Load Current at Ta 25 degrees iHA48040A033V 001 Typical startup characteristic from on off at full load Upper trace on off signal lower trace output voltage iHA48040A033V 001 Typical startup characteristic from input voltage application at full load Upper trace input voltage lower trace output voltage iHA48040A033V 001 Typical transient response Load step from 50 to 75 of full load with 0 1A uS Lower trace output current upper trace output voltage Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet
10. 77 498 0099 16 17 Input Output Ripple and Noise Measurements 100KHz Voutput Cext 1 2 12uH 1 2 esr lt 0 7 Battery 100KHz RLoad 1 2 esr lt 0 1 Vinput 220uF 1 2 Ground Plane 33uF 1 2 The input reflected ripple is measured with a current probe and oscilloscope The ripple current is the current through the 12uH inductor The capacitor Cin shall be at least 100uF 100V One 470uF or two 220uF 100V capacitors in parallel are recommended The output ripple measurement is made approximately 9 cm 3 5 in from the power module using an oscilloscope and BNC socket The capacitor Cext is located about 5 cm 2 in from the power module its value varies from code to code and is found on the electrical data page for the power module of interest under the ripple amp noise voltage specification in the Notes amp Conditions column Safety Considerations All TDK Innoveta products are certified to regulatory standards by an independent Certified Administrative Agency laboratory UL 1950 3rd edition US amp Canada and other global certifications are typically obtained for each product platform Various safety agency approvals are pending on the iHx product family For safety agency approval of the system in which the DC DC power module is installed the power module must be installed in compliance with the creepage and clearance requirements of the safety agency The i
11. Kohm 3 31 33K 3 57 16K 5 18K 5 34 57K 10 8K 10 17 63K e g trim up 5 57 34 5 1 5 1 2 225 1 3 3 k Rup iHA48040A033V 001 Typical Output Voltage vs Input Voltage Turn on Turn off Characteristics high voltage at Ta 25 degrees iHA48040A033V 001 Calculated resistor values for output voltage adjustment Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 9 17 Electrical Characteristics continued 0 1 10 100 1000 0 10 20 30 40 Decrease in Output Voltage Trim R esistance k 10 100 1000 10000 0 2 4 6 8 10 Increase in Output Voltage Trim R esistance k iHA48040A033V 001 Trim down curve for output voltage adjustment iHA48040A033V 001 Trim up curve for output voltage adjustment Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 10 17 Thermal Performance 10 20 30 40 25 35 45 55 65 75 85 95 105 115 Ambient Temperature oC Output Current A NC 0 3 m s 60 LFM 0 5 m s 100 LFM 1 0 m s 200 LFM 1 5 m s 300 LFM IMS LIMIT iHA48040A033V 001 maximum output current vs ambient temperature at nominal input voltage for airflow rates natural convec
12. V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 3 17 Ordering information Product Identifier Package Size Platform Input Voltage Output Current Power Output Units Main Output Voltage of Outputs Safety Class Feature Set i H A 48 060 A 033 V 0 00 TDK Innoveta Half Brick Veta 36 75V 60 Amps 033 3 3V Single 00 Standard OVP Over Voltage Protection OCP Over Current Protection OTP Over Temperature Protection Product Offering Code Input Voltage Output Voltage Output Current Maximum Output Power Efficiency iHA48060A012V 000 36V to 75V 1 2V 60A 72W 83 iHA48060A015V 000 36V to 75V 1 5V 60A 90W 86 iHA48060A018V 000 36V to 75V 1 8V 60A 108W 86 5 iHA48060A025V 000 36V to 75V 2 5V 60A 150W 89 iHA48060A033V 000 36V to 75V 3 3V 60A 198W 90 iHA48040A033V 000 36V to 75V 3 3V 40A 132W 90 iHA48060A050V 000 36V to 75V 5 0V 60A 300W 90 iHA48040A050V 000 36V to 75V 5 0V 40A 200W 91 iHA48025A120V 000 36V to 75V 12 0V 25A 300W 91 5 iHA48013A240V 000 36V to 75V 24 0V 12 5A 300W 91 iHA48011A280V 000 36V to 75V 28 0V 11A 308W 91 iHA48016A280V 000 40V to 60V 28 0V 16A 450W 93 5 TDK Innoveta Inc 3320 Matrix Drive Suite 100 Richardson Texas 75082 Phone 877 498 0099 Toll Free 469 916 4747 Fax 877 498 0143 Toll Free 214 239 3
13. ange There is a typical delay of 2mS from the time an overload condition appears at the module output until the hiccup mode will occur Output Over Voltage Protection The power modules have a control circuit independent of the primary control loop that reduces the risk of over voltage appearing at the output of the power module during a fault condition If there is a fault in the primary regulation loop the over voltage protection circuitry will cause the power module to shut down The module remains off unless either the input power is recycled or the on off switch is toggled The iHA Veta family also offers a hiccup over voltage protection once it detects that the output voltage has reached the level indicated in the Electrical Data section for the power module of interest When the condition causing the over voltage is corrected the module will operate normally Thermal Protection When the power modules exceed the maximum operating temperature the modules may turn off to safeguard the power unit against thermal damage The module will auto restart as the unit is cooled below the over temperature threshold Remote On Off The power modules have an internal remote on off circuit The user must supply an open collector or compatible switch between the Vin pin and the on off pin The maximum voltage generated by the power module at the on off terminal is 15V The maximum allowable leakage current of the switch is 50uA The switch
14. ath to individual components This air path improves convection cooling to the surrounding environment which reduces areas of heat concentration and resulting hot spots Test Setup The thermal performance data of the power module is based upon measurements obtained from a wind tunnel test with the setup shown in the wind tunnel figure This thermal test setup replicates the typical thermal environments encountered in most modern electronic systems with distributed power architectures The electronic equipment in networking telecom wireless and advanced computer systems operates in similar environments and utilizes vertically mounted PCBs or circuit cards in cabinet racks The power module is mounted on a 0 062 inch thick 6 layer 2oz layer PCB and is vertically oriented within the wind tunnel Power is routed on the internal layers of the PCB The outer copper layers are thermally decoupled from the converter to better simulate the customer s application This also results in a more conservative derating The cross section of the airflow passage is rectangular with the spacing between the top of the module and a parallel facing PCB kept at a constant 0 5 in The power module s orientation with respect to the airflow direction can have a significant impact on the unit s thermal performance Thermal Derating For proper application of the power module in a given thermal environment output current derating cu
15. erating product qualification and design reviews Early failures are screened out by both burn in and an automated final test The MTBF is calculated to be greater Cin Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 17 17 than 2M hours using the Telcordia TR 332 calculation method Improper handling or cleaning processes can adversely affect the appearance testability and reliability of the power modules Contact TDK Innoveta technical support for guidance regarding proper handling cleaning and soldering of TDK Innoveta s power modules Quality TDK Innoveta s product development process incorporates advanced quality planning tools such as FMEA and Cpk analysis to ensure designs are robust and reliable All products are assembled at ISO certified assembly plants Warranty TDK Innoveta s comprehensive line of power solutions includes efficient high density DC DC converters TDK Innoveta offers a three year limited warranty Complete warranty information is listed on our web site or is available upon request from TDK Innoveta Information furnished by TDK Innoveta is believed to be accurate and reliable However TDK Innoveta assumes no responsibility for its use nor for any infringement of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under an
16. esistor should be chosen according to the following equation 2 100 down down R k where 100 nom desired nom down V V V The current limit set point does not increase as the module is trimmed down so the available output power is reduced Sense Trim Sense Vout Rup Vout Circuit to increase output voltage With a resistor between the trim and sense terminals the output voltage is adjusted up To adjust the output voltage up a percentage of Vout Vo from Vo nom the trim resistor should be chosen according to the following equation up up ref nom up V V R 1 1 2 k where 100 nom nom desired up V V V and The value of Vref is found in the Electrical Data section for the power module of interest Trim up and trim down curves are found in the Electrical Characteristics section for the power module of interest The maximum power available from the power module is fixed As the output voltage is trimmed up the maximum output current must be decreased to maintain the maximum rated power of the module As the output voltage is trimmed the output over voltage set point is not adjusted Trimming the output voltage too high may cause the output over voltage protection circuit to be triggered Remote Sense The power modules feature remote sen
17. ltage 100 Vdc 100mS max Isolation Voltage 1500 Vdc Storage Temperature 55 125 C Operating Temperature Range Tc 40 115 C Maximum base plate temperature Measured at the location specified in the thermal measurement figure Flatness 0 006 In Bare component side of metal board shall be convex Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 6 17 Electrical Data continued Operating at Tc 25 C unless otherwise specified Output Characteristic Min Typ Max Unit Notes amp Conditions Output Voltage Initial Setpoint 3 25 3 3 3 35 Vdc Vin Vin nom Io Io max Output Voltage Tolerance 3 2 3 4 Vdc Over all rated input voltage load and temperature conditions to end of life Efficiency 91 5 Vin Vin nom Io Io max Line Regulation 2 6 mV Vin Vin min to Vin max Load Regulation 6 10 mV Io Io min to Io max Temperature Regulation 10 30 mV Tc Tc min to Tc max Output Current 0 40 A At loads less than 25 of Io max the module will continue to regulate the output voltage but the output ripple may increase Output Current Limiting Threshold 40 6 46 60 A Vo 0 9 Vo nom Tc lt Tc max Short Circuit Current 60 A Vo 0 25V 40 55 mVpp Output Ripple and Noise Voltage 10 15 mVrms Measured across one 47
18. must be capable of maintaining a low signal Von off lt 1 2V while sinking 1mA It is recommended that the power module be kept off for at least 100mS each time it is turned off The standard on off logic is positive logic The power module will turn on if terminal 2 is left open and will be off if terminal 2 is connected to terminal 4 An optional negative logic is available The power module will turn on if terminal 2 is connected to terminal 4 and it will be off if terminal 2 is left open On Off Vin Vin An On Off Control Circuit Output Voltage Adjustment The output voltage of the power module may be adjusted by using an external resistor connected between the Vout trim terminal pin 7 and either the Sense or Sense terminal If the output voltage adjustment feature is not used pin 7 should be left open Care should be taken to avoid injecting noise into the power module s trim pin A small 0 01uF capacitor between the power module s trim pin and Sense pin may help avoid this Trim Vout Sense Vout Sense Rdown Circuit to decrease output voltage With a resistor between the trim and Sense terminals the output voltage is adjusted down To adjust the output voltage down a Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 15 17 percentage of Vout Vo from Vo nom the trim r
19. rent vs maximum allowable IMS Temperature at nominal input voltage with airflow from input to output Example To estimate the maximum temperature at which an iHA48040A033V Module can provide full load with 0 5 m s 100 lfm of airflow at nominal line 48V using a 1 2 heatsink with the best orientation one must first look at the Power Dissipation vs input voltage and Output Current plot From this plot it can be seen that the iHA dissipates 11 5W of power Pd at full load From the Case to Ambient Thermal Resistance vs Airflow Rate curve Rca is 2 4oC W From the Output Current vs maximum allowable IMS Temperature plot for the best orientation heatsink application it can be seen that the maximum allowable IMS temperature at the thermal measurement location Tc is 112oC From the governing equation for the overall thermal resistance of the module Tc Ta Pd x Rca the maximum ambient temperature Ta is determined to be 84oC Complete thermal de rating and maximum IMS temperature curves without or with a heatsink or 1 are available upon request from TDK Innoveta Please note that the Power Dissipation curve is for Tamb 25oC At higher temperatures power dissipation may be higher Consult with TDK Innoveta if operating at high ambient temperatures The thermal curves provided are based upon measurements made in TDK Innoveta s experimental test setup that is described in the Thermal Management section Due to the
20. rves are provided as a design guideline in the Thermal Performance section for the power module of interest The module temperature should be measured in the final system configuration to ensure proper thermal management of the power module For thermal performance verification the module temperature should be measured at the location indicated in the thermal measurement location figure in the Thermal Performance section for the power module of interest In all conditions the power module should be operated below the maximum operating temperature shown on the derating curve For improved design margins and enhanced system reliability the power module may be operated at temperatures below the maximum rated operating temperature AIRFLOW Air Velocity and Ambient Temperature Measurement Location A I R F L O W 12 7 0 50 Module Centerline Air Passage Centerline Adjacent PCB 76 3 0 Wind Tunnel Test Setup Figure Dimensions are in millimeters inches Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 13 17 Heat transfer by convection can be enhanced by increasing the airflow rate that the power module experiences The maximum output current of the power module is a function of ambient temperature TAMB and airflow rate as shown in the thermal performance figures on the thermal performance page for
21. se to compensate for the effect of output distribution drops The output voltage sense range defines the maximum voltage allowed between the output power terminals and output sense terminals and it is found on the electrical data page for the power module of interest If the remote sense feature is not being used the Sense terminal should be connected to the Vo terminal and the Sense terminal should be connected to the Vo terminal The output voltage at the Vo and Vo terminals can be increased by either the remote sense or the output voltage adjustment feature The maximum voltage increase allowed is the larger of the remote sense range or the output voltage adjustment range it is not the sum of both As the output voltage increases due to the use of the remote sense the maximum output current must be decreased for the power module to remain below its maximum power rating EMC Considerations TDK Innoveta power modules are designed for use in a wide variety of systems and applications For assistance with designing for EMC compliance please contact TDK Innoveta technical support Input Impedance The source impedance of the power feeding the DC DC converter module will interact with the DC DC converter To minimize the interaction a 200 1000uF input electrolytic capacitor should be present Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 8
22. solation is basic insulation For applications requiring basic insulation care must be taken to maintain minimum creepage and clearance distances when routing traces near the power module As part of the production process the power modules are hi pot tested from primary and secondary at a test voltage of 1500Vdc The case pin is considered a primary pin for the purpose of hi pot testing When the supply to the DC DC converter is less than 60Vdc the power module meets all of the requirements for SELV If the input voltage is a hazardous voltage that exceeds 60Vdc the output can be considered SELV only if the following conditions are met 1 The input source is isolated from the ac mains by reinforced insulation 2 The input terminal pins are not accessible 3 One pole of the input and one pole of the output are grounded or both are kept floating 4 Single fault testing is performed on the end system to ensure that under a single fault hazardous voltages do not appear at the module output To preserve maximum flexibility the power modules are not internally fused An external input line normal blow fuse with the maximum rating stipulated in the Electrical Data section is required by safety agencies A lower value fuse can be selected based upon the maximum dc input current and maximum inrush energy of the power module Reliability The power modules are designed using TDK Innoveta s stringent design guidelines for component d
23. tion 0 3 m s 60lfm to 3 0m s 600lfm with airflow from output to input 10 20 30 40 25 35 45 55 65 75 85 95 105 115 Ambient Temperature oC Output Current A NC 0 3 m s 60 LFM 0 5 m s 100 LFM 1 0 m s 200 LFM 1 5 m s 300 LFM 2 0 m s 400 LFM IMS LIMIT 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 0 0 5 1 1 5 2 2 5 3 Airflow m s Case to Ambient Thermal Resistance CA oC W NO HS 1 4 HS 1 2 HS 1 HS iHA48040A033V 001 maximum output current vs ambient temperature at nominal input voltage for airflow rates natural convection 0 3 m s 60lfm to 3 0m s 600lfm with airflow from input to output iHA48040A033V 001 Case to Ambient Thermal Resistance vs Airflow rate Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 11 17 Thermal Performance continued 0 5 10 15 20 25 30 35 40 107 108 109 110 111 112 113 114 Temperature oC Output Current A 1 4 HS 1 2 HS 1 HS 0 5 10 15 20 25 30 35 40 105 106 107 108 109 Temperature oC Output Current A 1 4 HS 1 2 HS 1 HS iHA48040A033V 001 with heatsink maximum Output Current vs maximum allowable IMS Temperature at nominal input voltage with airflow from output to input iHA48040A033V 001 with heatsink maximum Output Cur
24. uF one 1uF and one 0 1uF ceramic capacitors see input output ripple measurement figure BW 20MHz Output Voltage Adjustment Range 50 110 Vo nom Output Voltage Sense Range 10 Vo nom Dynamic Response Recovery Time Transient Voltage 0 25 100 mS mV di dt 0 1A uS Vin Vin nom load step from 50 to 75 of Io max For applications with large step load changes and or high di dt load changes please contact TDK Innoveta for support Output Voltage Overshoot during startup 0 mV Io Io max Switching Frequency 300 kHz Fixed Output Over Voltage Protection 4 0 V All line load and temperature conditions External Load Capacitance 50 60000 uF Isolation Capacitance 2000 pF All line load and temperature conditions Isolation Resistance 10 M All line load and temperature conditions Vref 1 225 V Required for trim calculation Engineering Estimate Contact TDK Innoveta for applications that require additional capacitance Caution The power modules are not internally fused An external input line normal blow fuse with a maximum value of 10A is required see the Safety Considerations section of the data sheet Data Sheet Veta iHA48040A033V 3 3V 40A Output Half Brick Series 2007 TDK Innoveta Inc iHA Datasheet 040207 877 498 0099 7 17 Electrical Characteristics iHA48040A0
25. y patent or patent rights of TDK Innoveta TDK Innoveta components are not designed to be used in applications such as life support systems wherein failure or malfunction could result in injury or death All sales are subject to TDK Innoveta s Terms and Conditions of Sale which are available upon request Specifications are subject to change without notice TDK logo is a trademark or registered trademark of TDK Corporation TDK Innoveta Inc 3320 Matrix Drive Suite 100 Richardson Texas 75082 Phone 877 498 0099 Toll Free 469 916 4747 Fax 877 498 0143 Toll Free 214 239 3101 support tdkinnoveta com http www tdkinnoveta com
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