Hi-Rel DC/DC CONVERTER MGDM-04 : 4W POWER Hi-Rel Grade Single, Bi & Triple Outputs Metallic Case - 1.500 VDC Isolation • 28 Vdc input compliant with MIL-STD-704 D/E • Low profile : 0,3‘’ (7.5mm) • Nominal power of 4W without derating • Wide temperature range : -40°C/+105°C case • Soft start • Galvanic isolation 1.500 VDC • Integrated LC EMI filter 1-General • Permanent short circuit protection • Standard pin out DIL24 9 pins • Inhibit function • No optocoupler for high reliability The MGDM-04 series is a full family of high performance and low profile DC/DC power modules designed for aerospace, military and high-end industrial applications. These modules use a high frequency fixed switching technic at 480KHz providing excellent reliability, low noise characteristics, high power density and a low profile package. Standard models are available with nominal input voltages as 5, 12 or 28 volts in range of 4,5-5,5 , 9-36 or 16-40 volts. The series include single, bi and triple output voltage choices of 3.3, 5, 12, 15, +/-5, +/-12 or +/-15 volts. No external heatsink is required for the MGDM-04 series to supply 4W output power over the case temperature range of -40°C up to 105°C. All the modules are designed with LC network filters to minimize reflected input current ripple and output voltage ripple. The modules include a soft-start, a permanent short circuit protection and an output overvoltage protection to ensure efficient module protections. The soft-start allows current limitation and eliminates inrush current during start-up. The short circuit protection completely protects the module against short-circuits of any duration by a shut-down and restores to normal when the overload is removed. The design has been carried out with surface mount components and is manufactured in a fully automated process to guarantee high quality. Each module is tested and burned in with a GAIA Converter automated test equipment before and after encapsulation. The modules are potted with a bi-component thermal conductive compound and packaged in a metallic case to ensure the module’s integrity under high environmental conditions. 2-Product Selection Single output model : MGDS-04- (/T) and/or (/S) Bi output model : MGDB-04- (/T) and/or (/S) Triple output model : MGDT-04- (/T) and/or (/S) (/T) : option for -55°C start up operating temperature. (/S) : option for screening and serialization Input Voltage Range Permanent Transient C : 4,5-5,5 VDC H : 9-36 VDC J : 16-40 VDC n/a 40 VDC/100 ms* 50 VDC/100 ms* Output B : 3.3 VDC C : 5 VDC or +/-5VDC E : 12 VDC or +/-12VDC F : 15 VDC or +/-15VDC CF : 5 VDC and +/-15 VDC * Consult factory for details REDEFINING THE SOURCE OF POWER © Gaia Converter FC97-008.08/06 Revision N For locations, phone, fax, E-Mail see back cover 4 Hi-Rel Grade MGDM-04 Series 2- Product Selection (continued) Input range 4,5-5,5 4,5-5,5 4,5-5,5 4,5-5,5 4,5-5,5 4,5-5,5 4,5-5,5 VDC VDC VDC VDC VDC VDC VDC Output Current Reference Options 3,3 VDC 5 VDC 12 VDC 15 VDC +/- 5 VDC +/- 12 VDC +/- 15 VDC 1A 800 mA 330 mA 260 mA +/- 400 mA +/- 165 mA +/- 130 mA MGDS-04-C-B MGDS-04-C-C MGDS-04-C-E MGDS-04-C-F MGDB-04-C-C MGDB-04-C-E MGDB-04-C-F /T /T /T /T /T /T /T , , , , , , , /S /S /S /S /S /S /S 9-36 9-36 9-36 9-36 9-36 9-36 9-36 VDC VDC VDC VDC VDC VDC VDC 3,3 VDC 5 VDC 12 VDC 15 VDC +/- 5 VDC +/- 12 VDC +/- 15 VDC 1A 800 mA 330 mA 260 mA +/- 400 mA +/- 165 mA +/- 130 mA MGDS-04-H-B MGDS-04-H-C MGDS-04-H-E MGDS-04-H-F MGDB-04-H-C MGDB-04-H-E MGDB-04-H-F /T /T /T /T /T /T /T , , , , , , , /S /S /S /S /S /S /S 16-40 16-40 16-40 16-40 16-40 16-40 16-40 16-40 VDC VDC VDC VDC VDC VDC VDC VDC 3,3 VDC 5 VDC 12 VDC 15 VDC +/- 5 VDC +/- 12 VDC +/- 15 VDC 5 & +/-15 VDC 1A 800 mA 330 mA 260 mA +/- 400 mA +/- 165 mA +/- 130 mA 500 & +/-50 mA MGDS-04-J-B MGDS-04-J-C MGDS-04-J-E MGDS-04-J-F MGDB-04-J-C MGDB-04-J-E MGDB-04-J-F MGDT-04-J-CF /T /T /T /T /T /T /T /T , , , , , , , , /S /S /S /S /S /S /S /S 4 Converter Selection Chart MGDS - 04 - J - C / T Number of Outputs : S : single output B : bi ouput T : triple output Input voltage range : C : 4,5-5,5 VDC H : 9-36 VDC J : 16-40 VDC Output voltage : See table page 1 Option : /T : -55°C start up operation /S : screening and serialization (consult application note «screening grades») © Gaia Converter FC97-008.08/06 Revision N 2 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 3- Electrical Specifications Data are valid at +25°C, unless otherwise specified. Parameter Input Nominal input voltage Permanent input voltage range (Ui) Transient input voltage Start up input voltage Start up time Reflected ripple current Input current in short circuit mode (Average) No load input current Input current in inhibit mode Output Output voltage Set Point accuracy Output power Output current 3,3V output 5V output 12V output 15V output Ripple output voltage * 3,3V and 5V output 12V output 15V output Line regulation Load regulation ** Efficiency Maximum admissible Capacity load 3,3V and 5V output 12V and 15V output Conditions Limit or typical Units Full temperature range Nominal Full temperature range Single Output MGDS-04 04 - C 04 - H 04 - J VDC 5 20 28 Min. - Max. VDC 4,5-5,5 9-36 16-40 Full load (consult factory) Full load Ui nominal Nominal output Full load : resistive Ui nominal, full load at switching freq. BW = 20MHz Ui nominal Short-circuit Ui nominal No load Maximum Minimum VDC/S VDC / 4,3 40/0,1 8,5 50/0,1 15,5 Maximum ms 200 200 200 Maximum mApp 50 50 30 Maximum mA 50 30 30 Maximum mA 50 30 30 inhibit Maximum mA 5 5 5 Full temperature range Ui min. to max. 75% load Nominal Nominal Nominal Nominal VDC VDC VDC VDC 3,3 5 12 15 3,3 5 12 15 3,3 5 12 15 Maximum % +/- 2 +/- 2 +/- 2 Maximum W 4 4 4 Full temperature range Ui min. to max. Maximum Maximum Maximum Maximum mA mA mA mA 1.000 800 330 260 1.000 800 330 260 1.000 800 330 260 Ui nominal Full load BW = 20MHz Maximum Maximum Maximum mVpp mVpp mVpp 40 50 60 40 50 60 40 50 60 Maximum % +/- 0,5 +/- 0,5 +/- 0,5 Maximum % +/- 2 +/- 2 +/- 2 Typical % Maximum Maximum µF µF Ambient temperature : +25°c Ui nominal, 75% load Full temperature range Ui min. to max. Ui min. to max. Full load Ui nominal 25% to full load Ui nominal Full load Ui nominal Full load Per output 4 see on page 6 1.000 47 1.000 47 1.000 47 Note * : The ripple output voltage is the periodic AC component imposed on the output voltage, an aperiodic and random component (noise) has also to be considered. This noise can be reduced by adding an external capacitor (typically 10nF/rated voltage depending on isolation requirement) connected between the pin Gin and the pin Gout of the converter. This capacitor should be layed-out as close as possible from the converter. Note ** : For load regulation characteristics from 0% to full load, please see page 6. © Gaia Converter FC97-008.08/06 Revision N 3 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 3- Electrical Specifications (continued) Data are valid at +25°C, unless otherwise specified. Parameter Input Nominal input voltage Permanent input voltage range (Ui) Transient input voltage Start up input voltage Start up time Reflected ripple current Input current in short circuit mode (Average) No load input current Input current in inhibit mode Output Output voltage Set Point accuracy Output power Output current +/- 5V output +/- 12V output +/- 15V output Ripple output voltage * 5V output 12V output 15V output Line regulation Load regulation ** Cross load output regulation Efficiency Maximum admissible Capacity load 5V output 12V and 15V output Conditions Limit or typical Units Full temperature range Nominal Full temperature range Bi Output MGDB-04 04 - C 04 - H 04 - J VDC 5 20 28 Min. - Max. VDC 4,5-5,5 9-36 16-40 Full load (consult factory) Full load Ui nominal Nominal output Full load : resistive Ui nominal, full load at switching freq. BW = 20MHz Ui nominal Short-circuit Ui nominal No load Maximum Minimum VDC/S VDC / 4,3 40/0,1 8,5 50/0,1 15,5 Maximum ms 200 200 200 Maximum mApp 50 50 30 Maximum mA 50 30 30 Maximum mA 50 30 30 inhibit Maximum mA 5 5 5 Full temperature range Ui min. to max. 75% load Ambient temperature : +25°c Ui nominal, 75% load Full temperature range Ui min. to max. Nominal Nominal Nominal VDC VDC VDC +/- 5 +/- 12 +/- 15 +/- 5 +/- 12 +/- 15 +/- 5 +/- 12 +/- 15 Maximum % +/- 2 +/- 2 +/- 2 Maximum W +/- 2 +/- 2 +/- 2 Full temperature range Ui min. to max. Maximum Maximum Maximum mA mA mA +/- 400 +/- 165 +/- 130 +/- 400 +/- 165 +/- 130 +/- 400 +/- 165 +/- 130 Ui nominal Full load BW = 20MHz Maximum Maximum Maximum mVpp mVpp mVpp 40 50 60 40 50 60 40 50 60 Maximum % +/- 0,5 +/- 0,5 +/- 0,5 Maximum % +/- 2 +/- 2 +/- 2 Maximum % +/- 0,5 +/- 0,5 +/- 0,5 Typical % Maximum Maximum µF µF Ui min. to max. Full load Ui nominal 25% to full load Ui nominal + Vout nominal load - Vout from 25% to full load Ui nominal Full load Ui nominal Full load Per output 4 see on page 6 470 22 470 22 470 22 Note * : The ripple output voltage is the periodic AC component imposed on the output voltage, an aperiodic and random component (noise) has also to be considered. This noise can be reduced by adding an external capacitor (typically 10nF/rated voltage depending on isolation requirement) connected between the pin Gin and the pin Gout of the converter. This capacitor should be layed-out as close as possible from the converter. Note ** : For load regulation characteristics from 0% to full load, please see page 6. © Gaia Converter FC97-008.08/06 Revision N 4 For locations, phone, fax, E-Mail see back cover Hi-Rel Grade MGDM-04 Series 3- Electrical Specifications (continued) Data are valid at +25°C, unless otherwise specified. Parameter Input Nominal input voltage Permanent input voltage range (Ui) Transient input voltage Start up input voltage Triple Output Conditions Limit or typical Units Full temperature range Nominal VDC 28 Full temperature range Min. - Max. VDC 16-40 Maximum Minimum VDC/S VDC 50/0,1 15,5 Maximum ms 200 Maximum mApp 30 Maximum mA 30 Maximum mA 30 Maximum mA 5 Nominal VDC 5 & +/- 15 Maximum % +/- 2 Maximum W 2 & +/- 1 Maximum mA 500 & +/- 50 Maximum Maximum mVpp mVpp Full load (consult factory) Full load Ui nominal Start up time Nominal output Full load : resistive Ui nominal, full load at switching Reflected ripple current freq. BW = 20MHz Input current in short circuit Ui nominal mode (Average) Short-circuit Ui nominal No load input current No load Input current in inhibit inhibit mode Output Full temperature range Output voltage Ui min. to max. 75% load Ambient temperature : +25°c Set Point accuracy Ui nominal, 75% load Full temperature range Output power Ui min. to max. MGDT-04- J Output current 5V & +/- 15V output Full temperature range Ui min. to max. Ripple output voltage * 5V output 15V output Ui nominal Full load BW = 20MHz Ui min. to max. Full load Ui nominal 25% to full load Ui nominal + Vout nominal load - Vout from 25% to full load Ui nominal Full load Maximum % +/- 0,5 Maximum % +/- 2 Maximum % +/- 0,5 Typical % 80 Ui nominal Full load Per output Maximum Maximum µF µF 220 47 Line regulation Load regulation ** Cross load output regulation Efficiency Maximum admissible Capacity load 5V output 15V output 4 40 60 Note * : The ripple output voltage is the periodic AC component imposed on the output voltage, an aperiodic and random component (noise) has also to be considered. This noise can be reduced by adding an external capacitor (typically 10nF/rated voltage depending on isolation requirement) connected between the pin Gin and the pin Gout of the converter. This capacitor should be layed-out as close as possible from the converter. Note ** : For load regulation characteristics from 0% to full load, please see page 6. © Gaia Converter FC97-008.08/06 Revision N 5 For locations, phone, fax, E-Mail see back cover Hi-Rel Grade MGDM-04 Series 3- Electrical Characteristics (continued) Figure 2 : Typical efficiency versus load at nominal input 83 80 80 80 77 77 77 74 71 input 5V 74 71 2 3 Output Power (W) 4 2 3 Output Power (W) 4 1 80 80 80 77 77 input 9V input 18V 71 Efficiency (%) 83 Efficiency (%) 83 74 74 input 18V 71 3 Output Power (W) 80 81 Efficiency (%) 84 input 40V input 16V 3 1 4 2 3 Output Power (W) (MGDS-04-H-C module) Figure 8 : Typical efficiency versus load at various input 83 77 2 Output Power (W) (MGDS-04-H-B module) Figure 7 : Typical efficiency versus load at various input 71 71 65 1 4 4 4 (MGDS-04-H-E module) Figure 9 : Typical efficiency versus load at various input 84 81 input 40V 78 Efficiency (%) 2 74 input 18V input 36V 65 65 1 input 9V 74 68 68 68 4 (MGDS-04-C-F module) 77 input 36V input 36V 3 Figure 6 : Typical efficiency versus load at nominal input 83 input 9V 2 Output Power (W) (MGDS-04-C-E module) Figure 5 : Typical efficiency versus load at various input Figure 4 : Typical efficiency versus load at various input input 5V 71 65 1 (MGDS-04-C-C module) 74 68 65 1 input 28V 75 input 16V 72 78 input 40V 75 input 28V 72 input 28V 69 68 66 65 1 2 3 Output Power (W) 66 1 4 2 3 Output Power (W) (MGDS-04-J-C module) Figure 10 : Typical load regulation characteristics at nominal input 4 1 16,4 13,2 16,2 Output voltage (VDC) 13,4 5,5 5,2 5,1 5 13 12,8 12,6 12,4 12,2 100 200 300 400 500 Output Current (mA) © Gaia Converter FC97-008.08/06 Revision N 600 700 800 (MGDS-04-J-C module) 16 15,8 15,6 15,4 15,2 14,8 11,8 0 4 (MGDS-04-J-F module) 15 12 4,9 3 Figure 12 : Typical load regulation characteristics at nominal input 5,6 5,3 2 Output Power (W) (MGDS-04-J-E module) Figure 11 : Typical load regulation characteristics at nominal input 5,4 input 16V 69 Output voltage (VDC) Efficiency (%) input 5V 68 65 Efficiency (%) Efficiency (%) 83 68 Output voltage (VDC) Figure 3 : Typical efficiency versus load at nominal input 83 Efficiency (%) Efficiency (%) Figure 1 : Typical efficiency versus load at nominal input 0 50 100 150 Output Current (mA) 200 250 300 350 (MGDS-04-J-E module) 0 50 100 Output Current (mA) 150 200 250 300 (MGDS-04-J-F module) 6 For locations, phone, fax, E-Mail see back cover Hi-Rel Grade MGDM-04 Series 4- Switching Frequency Parameter Conditions Limit or typical Specifications Switching frequency Full temperature range Ui min. to max. No load to full load Nominal, fixed 480 KHz for single & bi output models 400 KHz for triple output models Parameter Conditions Limit or typical Specifications Electric strength test voltage Input to output Minimum 1.500 VDC / 1 min Electric strength test voltage between outputs (for dual and triple outputs) Output to output Minimum No isolation Isolation resistance 500 VDC Minimum 100 MOhm 5- Isolation 6- Protection Functions Characteristics Protection Device Recovery Limit or typical Specifications Output short circuit protection (SCP) Hiccup circuitry with auto-recovery Automatic recovery Permanent See section 11 / Maximum Maximum Maximum Maximum For 3.3v : 4v For 5v : 6v For 12v : 14v For 15v : 17v Output overvoltage protection (OVP) Zener clamp 4 7- Reliability Data Characteristics Mean Time Between Failure (MTBF) According to MIL-HDBK-217F Mean Time Between Failure (MTBF) According to IEC-62380-TR © Gaia Converter FC97-008.08/06 Revision N Conditions Temperature Specifications Ground fixed (Gf) Case at 40°C Case at 85°C 1.650.000 Hrs 645.000 Hrs Airborne, Inhabited, Cargo (AIC) Case at 40°C Case at 85°C 900.000 Hrs 350.000 Hrs Avionics Military Cargo / Consult factory 7 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 8- Electromagnetic Interference Electromagnetic Interference requirements according to MIL-STD-461C/D/E standards can be easily achieved as indicated in the following section. The following table resumes the different sections covered by these standards. MIL-STD-461C Standard MIL-STD-461D/E Standard Conducted emission (CE) : Low frequency High frequency CE 01 CE 03 CE 101 CE 102 compliant module stand-alone compliant with additionnal filter Conducted susceptibility (CS) : Low frequency High frequency CS 01 CS 02 CS 101 CS114 compliant with additionnal filter compliant with additionnal filter Radiated emission (RE) : Magnetic field Electrical field RE 01 RE 02 RE 101 RE 102 compliant module stand-alone compliant module stand-alone Radiated susceptibility (RS) : Magnetic field Electrical field RS 01 RS 03 RS 101 RS 103 compliant module stand-alone compliant module stand-alone Standard Requirements Applicability H, J input module Compliance with GAIA Converter Module & common mode capacitance H, J input module see EMI datasheet 4 8-1 Module Compliance with MIL-STD-461C/D/E Standards To meet the latest US military standards MIL-STD-461D/E (and also the MIL-STD-461C) requirements and in particular the conducted noise emission CE102 (and also CE03) requirements, Gaïa Converter can propose a stand-alone ready-to-use EMI filter module. This EMI filter module has to be used together with a common mode noise capacitance C c (10nF/rated voltage depending on isolation requirement) connected between Gin and Gout. EMI Filter module reference : FGDM-2A-50V. Please consult EMI filter datasheet for further details. VI Vo EMI input Filter GI Go Vo VI MGDM-series GI Go Cc © Gaia Converter FC97-008.08/06 Revision N 8 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 9- Thermal Characteristics Conditions Limit or typical Performances Operating ambient temperature range at full load Characteristics Ambient temperature * Minimum Maximum - 40°C + 85°C Operating case temperature range at full load Case temperature Minimum Maximum - 40°C +105°C Storage temperature range Non functionning Minimum Maximum - 55°C + 125°C Thermal resistance Rth case to ambient in free air natural convection Typical 20°C /W Note * : The upper temperature range depends on configuration, the user must assure a max. case temperature of + 105°C. The MGDM-04 series operating case temperature must not exceed 105°C. The maximum ambient temperature admissible for the DC/DC converter corresponding to the maximum operating case temperature of 105°C depends on the ambient airflow, the mounting/orientation, the cooling features and the power dissipated. To calculate a maximum admissible ambient temperature the following method can be used. Knowing the maximum case temparature Tcase = 105°C of the module, the power used Pout and the efficiency h: • determine the power dissipated by the module Pdiss that should be evacuated : h - 1) Pdiss = Pout(1/h • determine the maximum ambient temperature : Ta = 105°C - Rth x Pdiss where Rth is the thermal resistance from the case to ambient. 4 The previous thermal calculation shows two areas of operation : • a normal operation area in a free natural ambient convection (grey area in this following graph), • an area with cooling features (air flow or heatsink) ensuring a maximum case temperature below the maximum operating case temperature of 105°C (white area in the following graph). Power (W) 100% Additionnal cooling operation area 75% 50% Natural convection operation area 25% 10 20 30 40 50 60 70 80 90 100 110 Temperature (˚C) Full load ambient temperature without derating : 85˚C Maximum case temperature : 105˚C Maximum storage temperature : 125˚C © Gaia Converter FC97-008.08/06 Revision N 9 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 10- Environmental Qualifications The modules have been subjected to the following environmental qualifications. Characteristics Conditions Severity Test procedure Duration Temperature / status of unit Test D : 1.000 Hrs @ 105°C case, unit operating @ 125°C ambient, unit not operating MIL-STD-202G Method 108A Altitude Altitude level C Duration Climb up Stabilization Status of unit 40.000 ft@-55°C 30 min. 1.000 ft/min to 70.000 f@-55°C, 30 min. unit operating MIL-STD-810E Method 500.3 Humidity cyclic Number of cycle Cycle duration Relative humidity variation Temperature variation Status of unit 10 Cycle I : 24 Hrs 60 % to 88 % 31°C to 41°C unit not operating MIL-STD-810E Method 507.3 Humidity steady Damp heat Temperature Duration Status of unit 93 % relative humidity 40°C 56 days unit not operating MIL-STD-202G Method 103B Salt atmosphere Temperature Concentration NaCl Duration Status of unit 35°C 5% 48 Hrs unit not operating MIL-STD-810E Method 509.3 Temperature cycling Number of cycles Temperature change Transfert time Steady state time Status of unit 200 -40°C / +85°C 40 min. 20 min. unit operating MIL-STD-202A Method 102A Temperature shock Number of shocks Temperature change Transfert time Steady state time Status of unit 100 -55°C / +105°C 10 sec. 20 min. unit not operating MIL-STD-202G Method 107G Climatic Qualifications Life at high temperature 4 Mechanical Qualifications Vibration (Sinusoidal) Number of cycles Frequency / amplitude Frequency / acceleration Duration Status of unit 10 cycles in each axis 10 to 60 Hz / 0.7 mm 60 to 2000 Hz / 10 g 2h 30 min. per axis unit not operating MIL-STD-810D Method 514.3 Shock (Half sinus) Number of shocks Peak acceleration Duration Shock form Status of unit 3 shocks in each axis 100 g 6 ms 1/2 sinusoidal unit not operating MIL-STD-810D Method 516.3 Bump (Half sinus) Number of bumps Peak acceleration Duration Status of unit 2000 bumps in each axis 40 g 6 ms unit not operating MIL-STD-810D Method 516.3 © Gaia Converter FC97-008.08/06 Revision N 10 For locations, phone, fax, E-Mail see back cover Hi-Rel Grade MGDM-04 Series 11- Description of Protections 11-1 Output Short Circuit Protection (SCP) The short circuit protection device protects the module against short circuit of any duration and restores the module to normal operation when the short circuit is removed. It operates in «hiccup» mode by testing periodically if an overload is applied (typically every 200ms recovery time). The overload detection threshold is typically 200% of maximum current with a detection time lower than 5ms. Vo (%) 100 detection time x time recovery time recovery time 11-2 Output Overvoltage Protection (OVP) The output overvoltage protection device protects external components against high voltage or possible overvoltages which can be supplied by the module (i.e in case of internal failure). It consists of a zener diode clamping the output voltage; under worst case conditions this zener diode will short-circuit. The output voltage protection is not designed to withstand externally applied output overvoltages to protect the module itself. 4 12- Description of Functions 12-1 On/Off Function The control pin 20 (On/Off) can be used for applications requiring On/Off operation. By using an open collector command with a transistor Q referenced to the common terminal (Gi) : • A logic pulled low (<0.2V@1mA, referenced to Gi) on pin 20 disables the converter • No connection or high impedance on pin 20 enables the converter. On/Off Command By releasing the On/Off function, the converter will restart within the start-up time specifications given in table page 3. For further details please consult ‘’Logic On/Off’’ Application Note. © Gaia Converter FC97-008.08/06 Revision N GI 11 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 13- Application Notes 13-1 Connection of Outputs in Series Any of the bi output converters can be configured to produce an output of 10V (+/-5 output models), 24V (+/-12V output models), or 30V (+/-15V output models) by connecting the load across the output (+) and the output (-) with either output grounded, and leaving the common pin floating. VI +Vo Go GI -Vo VI Vo GI Go 2 x Vo 13-2 Connection of Modules in Series The output of single output units can be connected in series without any precautions to provide higher output voltage level. Nevertheless, GAIA Converter recommends to protect each individual output by a low power shottky diode rated with the maximum current of the converter to avoid reverse polarity at any output. Reverse polarity may occur at start up if the output voltages do not rise at the same time. 2 x Vo VI Vo 4 GI Go VI Vo 13-3 Connection of Modules in Parallel Several converters with equal output voltage can be connected in parallel to increase power. Nevertheless some cares have to be taken in particular as the output voltage of each converter is slightly different, when paralleling, the converter with the highest output voltage will source the most current. However the GAIA Converter modules are designed with a “soft’’ output voltage versus current characteristic. This causes the output voltage of each converter to automatically adjust downward as its current increases so each converter very approximately shares the total output current. It is important that each converter has approximately the same impedance between their output and the common load. © Gaia Converter FC97-008.08/06 Revision N Vo GI Go VI Vo GI Go 12 For locations, phone, fax, E-Mail see back cover MGDM-04 Series Hi-Rel Grade 14- Dimensions Dimension are given in mm (inches). Tolerance : +/- 0,2 mm (+/- 0.01 “) unless otherwise indicated. Weight : 10 grams (0.3 Ozs) max. 32,00 19,30 (1.25") (0.75") 7,00 7,50 (0.25") (0.31") 5 min (0,20") 10,15 2,54 (0.40") (0.10") 1,90 (0.07") 15,24 27,94 (0.60") (1.10") Pin dimensions : O 0,53 mm (0.02 ”) Metallic case black anodized coating solder plated pin For triple output models outline dimensions are : 35 mm (1.4’’) x 20 mm (0.8’’) x 10,50 mm (0.4’’) 15- Product Marking Upper face : Company logo, location of manufacturing. Side face : Module reference, option, date code : year and week of manufacturing. 4 16- Connections 12 11 13 14 13 11 10 20 2 1 23 24 Single output model 2 1 15 13 14 15 20 20 23 24 Bi output model 12 11 2 1 23 24 Triple output model Pin 1 2 10 11 12 13 14 15 20 23 24 Single + Input (Vi) + Input (Vi) / Common (Go) Common (Go) Output (Vo) Output (Vo) / On/Off - Input (Gi) - Input (Gi) Bi + Input (Vi) + Input (Vi) Common (Go) Common (Go) / Output - (-Vo) / Output + (+Vo) On/Off - Input (Gi) - Input (Gi) Triple + Input (Vi) + Input (Vi) / Common (Go) Common (Go) Output 2- (-V2) Output 1 (V1) Output 2+(+V2) On/Off - Input (Gi) - Input (Gi) Bottom view © Gaia Converter FC97-008.08/06 Revision N 13 For locations, phone, fax, E-Mail see back cover International Headquarters GAÏA Converter - France ZI de la Morandière 33185 LE HAILLAN - FRANCE Tel. : + (33)-5-57-92-12-80 Fax : + (33)-5-57-92-12-89 North American Headquarters GAÏA Converter Canada, Inc 4038 Le Corbusier LAVAL, QUEBEC - CANADA H7L 5R2 Tel. : (514)-333-3169 Fax : (514)-333-4519 Represented by : Information given in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed for the consequence of its use nor for any infringement of patents or other rights of third parties which may result from its use. These products are sold only according to GAIA Converter general conditions of sale, unless otherwise confirmed by writing. Specifications subject to change without notice. Printed in France by GAIA Converter FC97-008.08/06 Revision N Graphisme : Philippe Clicq For more detailed specifications and applications information, contact :