V36SE12004 FEATURES High efficiency: 88% @ 12V/4.2A, 48Vin 86% @ 12V/3.5A, 24Vin Size: 33.0x22.8x8.7mm (1.30”x0.90”x0.34”) Industry standard 1/16th brick size & pinout Input UVLO OTP and output OCP, OVP (default is auto-recovery) Output voltage trim: -20%, +10% Monotonic startup into normal and pre-biased loads Delphi Series V36SE, 1/16th Brick DC/DC Power Modules: 18~75Vin, up to 50W 2250V isolation and basic insulation No minimum load required SMD and Through-hole versions ISO 9001, TL 9000, ISO 14001, QS 9000, OHSAS 18001 certified manufacturing facility UL/cUL 60950-1 (US & Canada) Recognized OPTIONS SMD pins Brick, 18~75V Positive remote On/Off wide input, single output, isolated DC/DC converter, is the OTP and output OVP, OCP mode The Delphi Series V36SE, 1/16 th latest offering from a world leader in power systems (Auto-restart or latch) technology and manufacturing ― Delta Electronics, Inc. This product family provides up to 50 watts of power in the th industry standard 1/16 brick form factor (1.30”x0.90”) and pinout. With creative design technology and optimization of component placement, these converters possess outstanding electrical and thermal performance, as well as extremely high reliability under highly stressful operating conditions. For the 12V output module, it delivers 50W (4.2A) output with 36 to 75V input and APPLICATIONS delivers 40W (3.5A) output while the input is 18 to 36V to Optical Transport the same module. Typical efficiency of the 12V/4.2A Data Networking module is greater than 88%. All modules are protected Communications from Servers abnormal input/output voltage, current, and temperature conditions. For lower power needs, but in a similar small form factor, please check out Delta S48SP (36W or 10A) and S36SE (17W or 5A) series standard DC/DC modules. DS_ V36SE12004 _12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P1 TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.) PARAMETER NOTES and CONDITIONS V36SE12004(Standard) Min. ABSOLUTE MAXIMUM RATINGS Input Voltage Continuous Transient (100ms) Operating Temperature Storage Temperature Input/Output Isolation Voltage INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage Maximum Input Current No-Load Input Current Off Converter Input Current Inrush Current (I2t) Input Reflected-Ripple Current Input Voltage Ripple Rejection OUTPUT CHARACTERISTICS Output Voltage Set Point Output Voltage Regulation Over Load Over Line Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise Peak-to-Peak RMS Operating Output Current Range Operating Output Current Range Output Over Current Protection DYNAMIC CHARACTERISTICS Output Voltage Current Transient Positive Step Change in Output Current Negative Step Change in Output Current Settling Time (within 1% Vout nominal) Turn-On Transient Start-Up Time, From On/Off Control Start-Up Time, From Input Maximum Output Capacitance (note1) EFFICIENCY 100% Load 100% Load 60% Load ISOLATION CHARACTERISTICS Input to Output Isolation Resistance Isolation Capacitance FEATURE CHARACTERISTICS Switching Frequency ON/OFF Control, Negative Remote On/Off logic Logic Low (Module On) Logic High (Module Off) ON/OFF Control, Positive Remote On/Off logic Logic Low (Module Off) Logic High (Module On) ON/OFF Current (for both remote on/off logic) Leakage Current (for both remote on/off logic) Output Voltage Trim Range Output Voltage Remote Sense Range Output Over-Voltage Protection GENERAL SPECIFICATIONS MTBF Weight Over-Temperature Shutdown 100ms Refer to figure 19 for measuring point Typ. -40 -55 Max. Units 80 100 122 125 2250 Vdc Vdc Vdc °C °C Vdc 18 48 75 Vdc 16 15 0.5 17 16 1 18 17 1.8 3.9 Vdc Vdc Vdc A mA mA A2s mA dB 100% Load, 18Vin 20 8 1 P-P thru 12µH inductor, 5Hz to 20MHz 120 Hz Vin=48V, Io=Io.max, Tc=25°C Io=Io, min to Io, max Vin=36V to 75V Tc=-40°C to 85°C Over sample load, line and temperature 5Hz to 20MHz bandwidth Full Load, 1µF ceramic, 10µF tantalum Full Load, 1µF ceramic, 10µF tantalum Vin=18V-36V Vin=36V-75V Output Voltage 10% Low 10 50 11.88 12.00 12.12 Vdc ±12 ±12 11.64 ±3 ±3 ±120 12.00 12.36 mV mV mV V 150 40 3.5 4.2 140 mV mV A A % 100 25 0 0 110 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs 25% Io.max to 50% Io.max 50% Io.max to 25% Io.max 400 400 500 mV mV µs 30 30 ms ms µF Full load; 5% overshoot of Vout at startup 2200 Vin=48V Vin=24V Vin=48V 88.0 86.0 88.0 % % % 2250 1000 Vdc MΩ pF 440 KHz 10 Von/off Von/off Von/off Von/off Ion/off at Von/off=0.0V Logic High, Von/off=15V Pout ≦ max rated power,Io ≦ Io.max Pout ≦ max rated power,Io ≦ Io.max Over full temp range; % of nominal Vout Io=80% of Io, max; Ta=25°C, airflow Refer to figure 19 for measuring point 2 2 -20 120 3.0 12.1 129 0.8 18 V V 0.8 18 1 50 10 10 150 V V mA µA % % % M hours grams °C Note1: For applications with higher output capacitive load, please contact Delta DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P2 ELECTRICAL CHARACTERISTICS CURVES 90 8 88 7 86 6 EFFICIENCY (%) 1 POWER DISSIPATION(W) 1 18V in 84 24Vin 82 80 18Vin 48Vin 78 76 75Vin 20 48V in 5 4 75V in 3 2 1 74 10 24V in 30 40 50 60 70 80 90 100 OUTPUT CURRENT(A%) 0 10 20 30 40 50 60 70 80 90 100 OUTPUT CURRENT(A % ) Figure 1: Efficiency vs. load current for minimum, nominal, and maximum input voltage at 25°C 18V~36V, Iomax is 3.5A, 36V~75VIN, Iomax is 4.2A Figure 2: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at 25°C. 18V~36V, Iomax is 3.5A, 36V~75VIN, Iomax is 4.2A 3.20 2.90 INPUT CURRENT (A) 2.60 2.30 2.00 1.70 1.40 1.10 0.80 0.50 15 20 25 30 35 40 45 50 55 60 65 70 7 INPUT VOLTA GE (V) Figure 3: Typical full load input characteristics at room temperature DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P3 ELECTRICAL CHARACTERISTICS CURVES For Negative Remote On/Off Logic Figure 4: Turn-on transient at full rated load current (resistive load) (10 ms/div). Vin=48V. Top Trace: Vout, 5.0V/div; Bottom Trace: ON/OFF input, 2V/div Figure 5: Turn-on transient at zero load current (10 ms/div). Vin=48V. Top Trace: Vout: 5.0V/div, Bottom Trace: ON/OFF input, 2V/div Figure 6: Output voltage response to step-change in load current (50%-25%-50% of Io, max; di/dt = 0.1A/µs; Vin is 24v). Load cap: 10µF tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div, 200us/div), Bottom Trace: Iout (1A/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module Figure 7: Output voltage response to step-change in load current (50%-25%-50% of Io, max; di/dt = 0.1A/µs; Vin is 48v). Load cap: 10µF tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div, 200us/div), Bottom Trace: Iout (1A/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P4 ELECTRICAL CHARACTERISTICS CURVES Figure 8: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Current. Note: Measured input reflected-ripple current with a simulated source Inductance (LTEST) of 12 µH. Capacitor Cs offset possible battery impedance. Measure current as shown above Figure 9: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage (Vin=48v) with 12µH source impedance and 33µF electrolytic capacitor (200 mA/div, 1us/div) Copper Strip Vo(+) 10u SCOPE 1u RESISTIVE LOAD Vo(-) Figure 10: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage (vin=48v) and rated load current (20 mA/div, 1us/div) Figure 11: Output voltage noise and ripple measurement test setup 13 12 OUTPUT VOLTAGE(V) 11 10 9 8 7 6 5 4 3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 LOAD CURRENT(A) Figure 12: Output voltage ripple at nominal input voltage (vin=48v) and rated load current (Io=4.2A) (50 mV/div, 1us/div).Load capacitance: 1µF ceramic capacitor and 10µF tantalum capacitor. Bandwidth: 20 MHz. Scope measurements should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module DS_ V36SE12004_12252012 Figure 13: Output voltage vs. load current showing typical current limit curves and converter shutdown points (Vin=48v) E-mail: [email protected] http://www.deltaww.com/dcdc P5 DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules and affect the stability. A low ac-impedance input source is recommended. If the source inductance is more than a few µH, we advise adding a 10 to 100 µF electrolytic capacitor (ESR < 0.7 Ω at 100 kHz) mounted close to the input of the module to improve the stability. Layout and EMC Considerations Delta’s DC/DC power modules are designed to operate in a wide variety of systems and applications. For design assistance with EMC compliance and related PWB layout issues, please contact Delta’s technical support team. An external input filter module is available for easier EMC compliance design. Application notes to assist designers in addressing these issues are pending release. Safety Considerations The power module must be installed in compliance with the spacing and separation requirements of the end-user’s safety agency standard, i.e., UL60950-1, CAN/CSA-C22.2, No. 60950-1 and EN60950-1+A11 and IEC60950-1, if the system in which the power module is to be used must meet safety agency requirements. Basic insulation based on 75 Vdc input is provided between the input and output of the module for the purpose of applying insulation requirements when the input to this DC-to-DC converter is identified as TNV-2 or SELV. An additional evaluation is needed if the source is other than TNV-2 or SELV. When the input source is SELV circuit, the power module meets SELV (safety extra-low voltage) requirements. If the input source is a hazardous voltage which is greater than 60 Vdc and less than or equal to 75 Vdc, for the module’s output to meet SELV requirements, all of the following must be met: DS_ V36SE12004_12252012 The input source must be insulated from the ac mains by reinforced or double insulation. The input terminals of the module are not operator accessible. If the metal baseplate is grounded, one Vi pin and one Vo pin shall also be grounded. A SELV reliability test is conducted on the system where the module is used, in combination with the module, to ensure that under a single fault, hazardous voltage does not appear at the module’s output. When installed into a Class II equipment (without grounding), spacing consideration should be given to the end-use installation, as the spacing between the module and mounting surface have not been evaluated. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. This power module is not internally fused. To achieve optimum safety and system protection, an input line fuse is highly recommended. The safety agencies require a normal-blow fuse with 5A maximum rating to be installed in the ungrounded lead. A lower rated fuse can be used based on the maximum inrush transient energy and maximum input current. Soldering and Cleaning Considerations Post solder cleaning is usually the final board assembly process before the board or system undergoes electrical testing. Inadequate cleaning and/or drying may lower the reliability of a power module and severely affect the finished circuit board assembly test. Adequate cleaning and/or drying is especially important for un-encapsulated and/or open frame type power modules. For assistance on appropriate soldering and cleaning procedures, please contact Delta’s technical support team. E-mail: [email protected] http://www.deltaww.com/dcdc P6 FEATURES DESCRIPTIONS Over-Current Protection The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will automatically shut down, and enter hiccup mode or latch mode, which is optional. For hiccup mode, the module will try to restart after shutdown. If the over current condition still exists, the module will shut down again. This restart trial will continue until the over-current condition is corrected. Remote On/Off The remote on/off feature on the module can be either negative or positive logic. Negative logic turns the module on during a logic low and off during a logic high. Positive logic turns the modules on during a logic high and off during a logic low. Remote on/off can be controlled by an external switch between the on/off terminal and the Vi(-) terminal. The switch can be an open collector or open drain. For negative logic if the remote on/off feature is not used, please short the on/off pin to Vi(-). For positive logic if the remote on/off feature is not used, please leave the on/off pin floating. For latch mode, the module will latch off once it shutdown. The latch is reset by either cycling the input power or by toggling the on/off signal for one second. Vi(+) Vo(+) Sense(+) Over-Voltage Protection ON/OFF The modules include an internal output over-voltage protection circuit, which monitors the voltage on the output terminals. If this voltage exceeds the over-voltage set point, the module will shut down, and enter in hiccup mode or latch mode, which is optional. For hiccup mode, the module will try to restart after shutdown. If the over voltage condition still exists, the module will shut down again. This restart trial will continue until the over-voltage condition is corrected. For latch mode, the module will latch off once it shutdown. The latch is reset by either cycling the input power or by toggling the on/off signal for one second. Over-Temperature Protection The over-temperature protection consists of circuitry that provides protection from thermal damage. If the temperature exceeds the over-temperature threshold the module will shut down, and enter in hiccup mode or latch mode, which is optional. Sense(-) Vi(-) Figure 14: Remote on/off implementation Remote Sense Remote sense compensates for voltage drops on the output by sensing the actual output voltage at the point of load. The voltage between the remote sense pins and the output terminals must not exceed the output voltage sense range given here: [Vo(+) – Vo(–)] – [SENSE(+) – SENSE(–)] ≤ 10% × Vout This limit includes any increase in voltage due to remote sense compensation and output voltage set point adjustment (trim). For hiccup mode, the module will try to restart after shutdown. If the over temperature condition still exists, the module will shut down again. This restart trial will continue until the over-temperature condition is corrected. For latch mode, the module will latch off once it shutdown. The latch is reset by either cycling the input power or by toggling the on/off signal for one second. Vo(-) Vi(+) Vo(+) Sense(+) Sense(-) Contact Resistance Vi(-) Vo(-) Contact and Distribution Losses Figure 15: Effective circuit configuration for remote sense operation DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P7 FEATURES DESCRIPTIONS (CON.) If the remote sense feature is not used to regulate the output at the point of load, please connect SENSE(+) to Vo(+) and SENSE(–) to Vo(–) at the module. The output voltage can be increased by both the remote sense and the trim; however, the maximum increase is the larger of either the remote sense or the trim, not the sum of both. When using remote sense and trim, the output voltage of the module is usually increased, which increases the power output of the module with the same output current. Care should be taken to ensure that the maximum output power does not exceed the maximum rated power. Output Voltage Adjustment (TRIM) To increase or decrease the output voltage set point, connect an external resistor between the TRIM pin and either the SENSE(+) or SENSE(-). The TRIM pin should be left open if this feature is not used. Figure 17: Circuit configuration for trim-up (increase output voltage) If the external resistor is connected between the TRIM and SENSE (+) the output voltage set point increases (Fig. 19). The external resistor value required to obtain a percentage output voltage change △% is defined as: Rtrim − up = 5 . 11 Vo (100 + ∆ ) 511 − − 10 . 2 (K Ω ) 1.225 ∆ ∆ Ex. When Trim-up +10% (12V×1.1=13.2V) Rtrim − up = 5.11 × 12 × (100 + 10) 511 − − 10.2 = 489.3(KΩ ) 1.225 × 10 10 The output voltage can be increased by both the remote sense and the trim, however the maximum increase is the larger of either the remote sense or the trim, not the sum of both. Figure 16: Circuit configuration for trim-down (decrease output voltage) If the external resistor is connected between the TRIM and SENSE (-) pins, the output voltage set point decreases (Fig. 18). The external resistor value required to obtain a percentage of output voltage change △% is defined as: When using remote sense and trim, the output voltage of the module is usually increased, which increases the power output of the module with the same output current. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power. 511 Rtrim − down = − 10 .2 (K Ω ) ∆ Ex. When Trim-down -10% (12V×0.9=10.8V) 511 Rtrim − down = − 10 . 2 (K Ω ) = 40 .9 (K Ω ) 10 DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P8 THERMAL CONSIDERATIONS THERMAL CURVES Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. Thermal Testing Setup Delta’s DC/DC power modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment. This type of equipment commonly uses vertically mounted circuit cards in cabinet racks in which the power modules are mounted. The following figure shows the wind tunnel characterization setup. The power module is mounted on a test PWB and is vertically positioned within the wind tunnel. The space between the neighboring PWB and the top of the power module is constantly kept at 6.35mm (0.25’’). Figure 19: Temperature measurement location * The allowed maximum hot spot temperature is defined at 122℃. Output Current (A) V36SE12004 (standard) Output Current vs. Ambient Temperature and Air Velocity @Vin=24V (Either Orientation) 3.5 Natural Convection 3.0 100LFM 2.5 200LFM 300LFM 2.0 400LFM 1.5 1.0 PWB FACING PWB 0.5 MODULE 0.0 25 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 20: Output current vs. ambient temperature and air velocity @ Vin=24V (Either Orientation) AIR VELOCITY AND AMBIENT TEMPERATURE MEASURED BELOW THE MODULE Output Current (A) V36SE12004 (standard) Output Current vs. Ambient Temperature and Air Velocity @Vin=48V (Either Orientation) 4.2 50.8 (2.0”) Natural Convection 3.6 AIR FLOW 100LFM 3.0 200LFM 2.4 300LFM 12.7 (0.5”) 1.8 400LFM Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches) 1.2 Figure 18: Wind tunnel test setup 0.6 Thermal Derating 0.0 25 Heat can be removed by increasing airflow over the module. To enhance system reliability, the power module should always be operated below the maximum operating temperature. If the temperature exceeds the maximum module temperature, reliability of the unit may be affected. DS_ V36SE12004_12252012 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (℃) Figure 21: Output current vs. ambient temperature and air velocity @ Vin=48V (Either Orientation) E-mail: [email protected] http://www.deltaww.com/dcdc P9 PICK AND PLACE LOCATION RECOMMENDED PAD LAYOUT (SMD) SURFACE-MOUNT TAPE & REEL DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P10 LEADED (Sn/Pb) PROCESS RECOMMEND TEMPERATURE PROFILE Temperature (°C ) 250 200 150 Ramp-up temp. 0.5~3.0°C /sec. 2nd Ramp-up temp. Peak temp. 1.0~3.0°C /sec. 210~230°C 5sec. Pre-heat temp. 140~180°C 60~120 sec. Cooling down rate <3°C /sec. 100 Over 200°C 40~50sec. 50 0 60 120 Time ( sec. ) 180 240 300 Note: The temperature refers to the pin of V36SE, measured on the pin +Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMPERATURE PROFILE Temp. Peak Temp. 240 ~ 245 ℃ 217℃ Ramp down max. 4℃/sec. 200℃ 150℃ Preheat time 100~140 sec. Time Limited 90 sec. above 217℃ Ramp up max. 3℃/sec. 25℃ Time Note: The temperature refers to the pin of V36SE, measured on the pin +Vout joint. DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P11 MECHANICAL DRAWING Surface-mount module Pin No. 1 2 3 4 5 6 7 8 Name +Vin ON/OFF -Vin -Vout -SENSE TRIM +SENSE +Vout DS_ V36SE12004_12252012 Through-hole module Function Positive input voltage Remote ON/OFF Negative input voltage Negative output voltage Negative remote sense Output voltage trim Positive remote sense Positive output voltage E-mail: [email protected] http://www.deltaww.com/dcdc P12 PART NUMBERING SYSTEM V Type of Product V - 1/16 Brick 36 S Input Number of Voltage Outputs 36 S - Single 18V~75V E 120 04 N R Product Series Output Voltage Output Current ON/OFF Logic Pin Length/Type E - Regular 120 - 12V 04 - 4.2A F N- Negative K - 0.110” P- Positive M - SMD N - 0.145" R - 0.170” A Option Code Space - RoHS 5/6 F - RoHS 6/6 (Lead Free) A-Standard Functions MODEL LIST MODEL NAME INPUT OUTPUT EFF @ 100% LOAD V36SE12004NKFA 18V~75V 3.9A 12V 3.5A (18~36Vin) & 4.2A(36~75Vin) 86.0% @ 24Vin, 88.0% @ 48Vin V36SE12004NMFA 18V~75V 3.9A 12V 3.5A (18~36Vin) & 4.2A(36~75Vin) 86.0% @ 24Vin, 88.0% @ 48Vin V36SE12004NNFA 18V~75V 3.9A 12V 3.5A (18~36Vin) & 4.2A(36~75Vin) 86.0% @ 24Vin, 88.0% @ 48Vin V36SE12004NRFA 18V~75V 3.9A 12V 3.5A (18~36Vin) & 4.2A(36~75Vin) 4.2A(36~75Vin) (18~36Vin) 86.0% @ 24Vin, 88.0% @ 48Vin Default remote on/off logic is negative and pin length is 0.170” CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: [email protected] Europe: Telephone: +41 31 998 53 11 Fax: +41 31 998 53 53 Email: [email protected] Asia & the rest of world: Telephone: +886 3 4526107 x6220 Fax: +886 3 4513485 Email: [email protected] 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. Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for any infringements 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 Delta. Delta reserves the right to revise these specifications at any time, without notice. DS_ V36SE12004_12252012 E-mail: [email protected] http://www.deltaww.com/dcdc P13