D12S400 A

FEATURES  High Efficiency: 94% @ 12Vin, 5.0V/80A out  Wide input range: 10.8V~13.2V  Output voltage programmable from 0.8375Vdc to 5.0Vdc via external resistors  No minimum load required  Fixed frequency operation  Input UVLO, output OCP, OVP, OTP.  Remote On/Off (Positive logic)  Power Good Function  RoHS 6/6 compliant  ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility  UL/cUL 60950 (US & Canada) Recognized Delphi D12S400 Non-Isolated Point of Load DC/DC Modules: 10.8~13.2Vin, 0.8375~5.0V/ 80A output The D12S400, 10.8~13.2V wide input, single output, non-isolated point of load DC/DC converter is the latest offering from a world leader in power systems technology and manufacturing -- Delta Electronics, Inc. The D12S400 and ND/NE product families are part of the second generation, non-isolated point-of-load DC/DC power modules which cut the module size by almost 50% in most of the cases compared to the first generation NC series POL modules for networking and data communication applications. D12S400 product provides up to 80A in the same form factor of the second generation 60A datacom POLs and the output can be resistor trimmed from 0.8375Vdc to 5.0Vdc. It provides a highly efficient, high power and current density and very cost effective point of load solution. With creative design technology and APPLICATIONS optimization of component placement, these converters possess outstanding  Telecom / DataCom electrical and thermal performance, as well as extremely high reliability under  Distributed power architectures highly stressful operating conditions.  Servers and workstations  LAN / WAN applications  Data processing applications DATASHEET DS_D12S400_10152013 TECHNICAL SPECIFICATIONS (All data below are tested at operating ambient temperature 25°C, air flow 300LFM, 5.0Vout, unless otherwise stated.) PARAMETER NOTES and CONDITIONS D12S400 Min. ABSOLUTE MAXIMUM RATINGS Input Voltage Operating Temperature Storage Temperature INPUT CHARACTERISTICS Operating Input Voltage 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 OUTPUT CHARACTERISTICS Output Voltage Adjustment Range Output Voltage Set Point Output Voltage Regulation Over Load Over Line Over Temperature Total output range Output Voltage Ripple and Noise Peak-to-Peak RMS Output Current Range Output Voltage Over-shoot at Start-up Output Voltage Under-shoot at Power-Off Output DC Current-Limit Inception DYNAMIC CHARACTERISTICS Output Dynamic Load Response Positive Step Change in Output Current Negative Step Change in Output Current Settling Time Turn-On Transient Start-Up Time, from On/Off Control Start-Up Time, from input power Power Good Delay Minimum Output Capacitance Maximum Output Startup Capacitive Load Minimum Input Capacitance EFFICIENCY Vo=1.0V Vo=1.2V Vo=1.5V Vo=1.8V Vo=2.5V Vo=3.3V Vo=5.0V FEATURE CHARACTERISTICS Switching Frequency ON/OFF Control Logic High Logic Low GENERAL SPECIFICATIONS Calculated MTBF Weight Over-Temperature Shutdown Continuous With appropriate air flow and de-rating as Figure 28 -0.3 0 -40 Vo >1.8V Vo≦1.8V 10.8 5.0 Vo≦3.3V, Io=1A Vo≦3.3V, Io=1A Io=Io_min to Io_max Vin=Vin_min to Vin_max Tc=0°C to 85°C Over load, line, temperature regulation and set point 5Hz to 20MHz bandwidth Full Load, 10uF Tan cap & 1uF ceramic, total input & output range Full Load, 10uF Tan cap & 1uF ceramic, total input & output range 12.0 Max. Units 13.8 85 125 V °C °C 13.2 13.2 V V 4.8 4.5 0.3 100%Load, 12Vin, 5.0Vout Total input range Remote OFF, Vin=12V Measured at remote sense pin Typ. 38 750 35 V V V A mA mA 0.8375 -1.5 5.0 +1.5 V %Vo -0.5 -0.5 -1.0 -3.5 +0.5 +0.5 +1.0 +3.5 %Vo %Vo °C %Vo 0 50 20 80 2 100 All conditions Vin=12V, Turn OFF Hiccup mode 135 mV mV A % of Vo mV %Iomax Without output cap. 12Vin, 5.0Vout, 0A to 20A, 10A/uS 12Vin, 5.0Vout, 20A to 0A, 10A/uS Settling to be within regulation band (to 10% Vo deviation) 170 170 20 mV mV µs 0.5 From Enable high to 90% of Vo From Vin=12V to 90% of Vo All conditions (within 90% of Vo(set)) ESR≥ 1mΩ 5 10 2 0 0 2200 5000 ms ms ms µF µF µF Vin=12V, Io=80A Vin=12V, Io=80A Vin=12V, Io=80A Vin=12V, Io=80A Vin=12V, Io=80A Vin=12V, Io=80A Vin=12V, Io=80A 85.0 86.0 88.5 89.5 91.5 92.5 94.0 % % % % % % % Fixed, Per phase Positive logic (internally pulled high) Module On (or leave the pin open) Module Off 500 KHz 12Vin, 5.0Vout, Full load, 55℃, 400LFM 12Vin, 5.0Vout, Full load, 25℃, 400LFM Refer to Figure 28 for the measuring point 4.5 -0.3 5.5 0.5 1.0 1.4 35.0 125 V V M hours M hours grams °C DS_D12S400_10152013 2 Effciency 95 90 85 80 75 70 65 60 Effciency 95 effciency (%) effciency (%) ELECTRICAL CHARACTERISTICS CURVES 5V 12V 13.2V 90 85 80 5V 12V 13.2V 75 70 10 20 30 40 50 60 70 80 10 20 output current (A) effciency (%) effciency (%) 5V 12V 13.2V 20 30 40 50 60 70 80 20 40 50 60 50 60 70 80 70 95 90 85 7.5V 12V 13.2V 80 75 80 10 20 30 40 50 60 70 80 output current (A) output current (A) Figure 5: Converter efficiency vs. output current (3.3V output voltage) 40 Effciency 100 effciency (%) effciency (%) 30 Figure 4: Converter efficiency vs. output current (2.5V output voltage) 5.0V 12V 13.2V 30 80 5V 12V 13.2V 10 Effciency 20 70 output current (A) Figure 3: Converter efficiency vs. output current (1.8V output voltage) 10 60 Effciency 100 95 90 85 80 75 output current (A) 95 90 85 80 75 70 65 50 Figure 2: Converter efficiency vs. output current (1.5V output voltage) Effciency 10 40 output current (A) Figure 1: Converter efficiency vs. output current (1.2V output voltage) 95 90 85 80 75 70 65 30 Figure 6: Converter efficiency vs. output current (5.0V output voltage) NOTE: REMOVE THE 5V INPUT APPLICATIONS. DS_D12S400_10152013 3 ELECTRICAL CHARACTERISTICS CURVES (CONTINUED) Figure 7: Output ripple & noise at 12Vin, 1.2V/80A out (10mv/div, 1mS/div) Figure 8: Output ripple & noise at 12Vin, 1.5V/80A out (10mv/div, 1mS/div) Figure 9: Output ripple & noise at 12Vin, 1.8V/80A out (10mv/div, 1mS/div) Figure 10: Output ripple & noise at 12Vin, 2.5V/80A out (10mv/div, 1mS/div) Figure 11: Output ripple & noise at 12Vin, 3.3V/80A out (10mv/div, 1mS/div) Figure 12: Output ripple & noise at 12Vin, 5.0V/80A out (10mv/div, 1mS/div) DS_D12S400_10152013 4 ELECTRICAL CHARACTERISTICS CURVES (CONTINUED) Figure 13: Control Turn on, 1.2V/80A out Ch1: Vo, Ch2:PG, Ch3:Enable Figure 14: Control Turn on, 1.5V/80A out Ch1: Vo, Ch2:PG, Ch3:Enable Figure 15: Control Turn on, 1.8V/80A out Ch1: Vo, Ch2:PG, Ch3:Enable Figure 16: Control Turn on, 2.5V/80A out Ch1: Vo, Ch2:PG, Ch3:Enable Figure 17: Control Turn on, 3.3V/80A out) Ch1: Vo, Ch2:PG, Ch3:Enable Figure 18: Control Turn on, 5V/80A out Ch1: Vo, Ch2:PG, Ch3:Enable DS_D12S400_10152013 5 ELECTRICAL CHARACTERISTICS CURVES (CONTINUED) Test condition: Slew rate: 10A/us, Load Step: 25% of max. load, Output without Caps. Figure 19: Typical transient response, 1.2V output CH1:Vo, Ch4:Io,10A/div Figure 20: Typical transient response, 1.5V output CH1:Vo, Ch4:Io,10A/div Figure 21: Typical transient response, 1.8V output CH1:Vo, Ch4:Io,10A/div Figure 22: Typical transient response, 2.5V output CH1:Vo, Ch4:Io, 10A/div Figure 23: Typical transient response, 3.3V output CH1:Vo, Ch4:Io,10A/div Figure 24: Typical transient response, 5.0V output CH1:Vo, Ch4:Io,10A/div DS_D12S400_10152013 6 DESIGN CONSIDERATIONS FEATURES DESCRIPTIONS The D12S400 uses a voltage mode controlled buck topology. The output can be trimmed in the range of 0.8375Vdc to 5.0Vdc by an external resistor from Trim(+) pin to Trim(-). Enable (On/Off) The converter can be turned ON/OFF by remote control with positive on/off (ENABLE pin) logic. The converter DC output is disabled when the signal is driven low. When this pin is floating the module will turn on. The converter can protect itself by entering hiccup mode against over current and short circuit condition. Also, the converter will shut down when an over voltage protection is detected. D12S400 has positive on/off logic, pulling the pin low will turn off the unit. With the active high function, the output is guaranteed to turn on if the ENABLE pin is driven above 4.5V. The output will turn off if the ENABLE pin voltage is pulled below 0.5V. The D12S400 is turned on if the ENABLE pin is floating. The ENABLE input can be driven in a variety of way as shown in Figures 25. Safety Considerations It is recommended that the user to provide a very fast-acting type fuse in the input line for safety. The output voltage set point and the output current in the application could define the amperage rating of the fuse. Unit Vin Vout Enable Trim GND GND Figure 25: Enable Input drive circuit Over-Current and Short-Circuit Protection The D12S400 has non-latching over-current and short circuit protection circuitry. When over current condition occurs, the module goes into the non-latching hiccup mode. When the over-current condition is removed, the module will resume normal operation. An over current condition is detected by measuring the voltage drop across the Rds(on) of low side MOSFET. Rds(on) is affected by temperature, therefore ambient temperature will affect the current limit inception point. Output Over Voltage Protection (OVP) The converter will shut down when an output over voltage protection is detected. Once the OVP condition is detected, controller will latch off and can only reset by input voltage or ON/OFF. DS_D12S400_10152013 7 FEATURES DESCRIPTIONS (CONT.) Output Voltage Programming Power Good The output voltage of the D12S400 is trimmable by connecting an external resistor between the Trim(+) and Trim(-) pins as shown in Figure 26 and the typical trim resistor values are shown in Table 1. The power good signal is pulled low when an input under voltage, output over voltage, or output over current conditions is detected or when the converter is disabled by ENABLE pin. Paralleling Unit Vin Vout Enable Trim(+) D12S400 converters do not have built-in current sharing (paralleling) ability. Hence, paralleling of multiple D12S400 converters are not recommended. Rtrim GND The converter provides an open collector signal called Power Good. This output pin uses positive logic and is open-drain. This power good output is able to sink 4mA. Trim(-) Figure 26: Trimming Output Voltage The D12S400 module has a trim range of 0.8375V to 5.0V. The trim resistor equation for the D12S400 is: 1.675 Rtrim ()  Vout  0.8375 Vout is the output voltage set point Rtrim is the resistance between Trim(+) and Trim(-) Rtrim values should not be less than 360Ω Output Voltage Rtrim (Ω) 0.8375V +1.0V +1.2V +1.5V +1.8V +2.5V +3.3V +5.0V open 10.3K 4.631K 2.528K 1.74K 1.008K 680 402 Output Capacitance There is output capacitor on the D12S400. Hence, no external output capacitor is required for stable operation. Reflected Ripple Current and Output Ripple and Noise Measurement The measurement set-up outlined in Figure 27 has been used for both input reflected/ terminal ripple current and output voltage ripple and noise measurements on D12S400 converters. Input reflected current measurement point Ltest DC-DC Converter Vin+ Cs Cin Load 1uF Ceramic 10uF Tan Output voltage ripple noise measurement point Cs=330μF OS-CON cap x 1, Ltest=1μH, Cin=330μF OS-CON cap x 1, Figure 27: Input reflected ripple/ capacitor ripple current and output voltage ripple and noise measurement setup for D12S400 Table 1: Typical trim resistor values DS_D12S400_10152013 8 THERMAL CONSIDERATIONS 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. THERMAL CURVES (VERTICAL VERSION) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1V (Worse Orientation) Output Current (A) 90 80 70 Hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. 60 Natural Convection 50 40 Thermal De-rating 30 100LFM 400LFM 200LFM 500LFM 300LFM 600LFM 20 Heat can be removed by increasing airflow over the module. The module’s maximum hot spot temperature is defined at 125℃. 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. 10 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 29: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=1.0V (Worst Orientation) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1.2V (Worse Orientation) Output Current (A) 90 THERMAL CURVES (VERTICAL VERSION) 80 70 60 Natural Convection 50 40 30 100LFM 400LFM 200LFM 500LFM 300LFM 600LFM 20 10 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 30: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=1.2V (Worst Orientation) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1.5V (Worse Orientation) Figure 28: Hot spot temperature measured point ※ The allowed maximum hot spot temperature is defined at 125℃. Output Current (A) 90 80 70 60 50 Natural Convection 40 100LFM 400LFM 200LFM 500LFM 300LFM 600LFM 30 20 10 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 31: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=1.5V (Worst Orientation) DS_D12S400_10152013 9 THERMAL CURVES (VERTICAL VERSION) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =1.8V (Worse Orientation) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =3.3V (Worse Orientation) Output Current (A) Output Current (A) 90 90 80 80 70 70 60 60 50 50 40 Natural Convection 30 100LFM 400LFM 30 100LFM 400LFM 20 200LFM 500LFM 20 200LFM 500LFM 10 300LFM 600LFM 10 300LFM 600LFM Natural Convection 40 0 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 32: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=1.8V (Worst Orientation) 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 34: Output current vs. ambient temperature and air velocity@ Vin=12V, Vout=3.3V (Worst Orientation) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =2.5V (Worse Orientation) D12S400 series Output Current vs. Ambient Temperature and Air Velocity @ Vin =12V, Vout =5V (Worse Orientation) Output Current (A) Output Current (A) 90 90 80 80 70 70 60 60 400LFM 500LFM 600LFM 50 50 Natural Convection 40 40 30 100LFM 400LFM 20 200LFM 500LFM 10 300LFM Natural Convection 30 20 200LFM 100LFM 10 600LFM 0 300LFM 0 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 33: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=2.5V (Worst Orientation) 25 35 45 55 65 75 85 Ambient Temperature (℃) Figure 35: Output current vs. ambient temperature and air velocity @Vin=12V, Vout=5.0V (Worst Orientation) DS_D12S400_10152013 10 MECHANICAL DRAWING * All pins are copper with mate tin DS_D12S400_10152013 11 PART NUMBERING SYSTEM D 12 S 400 A Type of Product Input Voltage Number of Outputs Product Series Option Code D - DC/DC modules 12- 10.8 ~13.2V S- Single 400 - 400W (80A, wide output trim) A - RoHS 6/6 lead free, positive on/off logic, 3.56mm pin length, Vertical B - RoHS 6/6 lead free, positive on/off logic, 6.35mm pin length, Vertical MODEL LIST Input Voltage Output Voltage Output Current Pin Length RoHS 6/6 complaint Efficiency 12Vin, 5Vout @ 100% load D12S400 A 10.8 ~ 13.2Vdc 0.8375V ~ 5.0V 80A 3.5mm (0.14") Yes 94.0% D12S400 B 10.8 ~ 13.2Vdc 0.8375V ~ 5.0V 80A 6.3mm (0.25") Yes 94.0% Model Name CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Europe: Telephone: +31-20-655-0967 Fax: +31-20-655-0999 Email: DCDC@delta-es.com Asia & the rest of world: Telephone: +886 3 4526107 ext. 6220~6224 Fax: +886 3 4513485 Email: DCDC@delta.com.tw 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_D12S400_10152013 12