D12S05020 DELTA | Alldatasheet
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Technical content
DS_D12S05020_10282008
FEATURES
High Efficiency: 93.4% @ 12Vin, 5V/20A out Wide input range: 4.5V~13.2V Output voltage programmable from 0.59Vdc to 5.0Vdc via external resistors No minimum load required Fixed frequency operation Input UVLO, output OCP, SCP, OVP Remote On/Off (Positive logic) Power Good Function Parts/assembly comply with ROHS ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility
APPLICATIONS
Data Communications Distributed power architectures Servers and workstations LAN/WAN applications Data processing applications OPTIONS Delphi D12S05020 Non-Isolated Point of Load DC/DC Modules: 4.5V~13.2Vin, 0.59V~5.0Vout, 20A The Delphi D12S05020 Series, 4.5V to 13.2V wide input, wide trim, single output, non-isolated point of lo ad (POL) DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing — Delta Electronics, Inc. The D12S05020 product family is part of t he second generation, non-isolated point-of-load DC/DC power modules for the data communication applications which cut the module size by almost 50% in most of the cases compared to the first generation NC series POL modules. The D12S05020 product family provides an ultra wide input range to support 5V, 8V, 9.6V, and 12V bus voltage point-of-load applications and it offers 20A of output current in a vertically mounted through-hole miniature package and the output can be resistor trimmed from 0.59Vdc to 5.0Vdc. It provides a very cost effective, high efficiency, and high density point of load solution. 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.
DS_D12S05020_10282008 TECHNICAL SPECIFICATIONS (Ambient Temperature=25°C, minimum airflow=200LFM, nominal Vin=12Vdc unless otherwise specified.) PARAMETER NOTES and CONDITIONS D12S05020 Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage -0.3 13.2 V Operating Temperature Refer to Figure 25 for the measuring point 0 85 °C Storage Temperature -40 125 °C INPUT CHARACTERISTICS Operating Input Voltage 4.5 13.2 V Input Under-Voltage Lockout Turn-On Voltage Threshold For 5V output the input minimum is 6.5V 4.5 V Turn-Off Voltage Threshold 4.0 V Maximum Input Current Vin=6.5V, Vo=5.0V, Io=20A 16.5 A Vin=5V, Vo=3.3V, Io=20A 14.7 A No-Load Input Current Vin=12V, Vo=5.0V, Io=0A 60 mA Off Converter Input Current Remote OFF 10 mA OUTPUT CHARACTERISTICS Output Voltage Adjustment Range 0.59 5.0 V Output Voltage Set Point With a 0.1% trim resistor -2 +2 %Vo Total output range Over load, line, temperature regulation and set point -3.0 +3.0 %Vo Output Voltage Ripple and Noise OSCON 680uF x2, 5Hz to 20MHz bandwidth Peak-to-Peak Full Load, 12Vin, 5Vo 10 20 mVpk-pk Output Current Range 0 20 A Output Voltage Over-shoot at Power-On OSCON 680uF x2, 0.5% Vo Output Voltage Under-shoot at Power-Off Vin=12V, Turn OFF, OSCON 680uF x2, 100 mV Output DC Current-Limit Inception Hiccup mode 30 A Over Voltage Protection Hiccup mode 115 % Under Voltage Protection Hiccup mode 115 % DYNAMIC CHARACTERISTICS Output Dynamic Load Response Output step load 10A to 20A, 10A/usec Vo=5.0V, 1360µF output capacitance 150 mVpk Vo=3.3V, 1360µF output capacitance 99 mVpk Vo=2.5V, 1360µF output capacitance 75 mVpk Vo=1.5V, 1360µF output capacitance 45 mVpk Vo=1.2V, 3280µF output capacitance 26 mVpk Vo=0.9V, 3280µF output capacitance 22 mVpk Vo=0.59V, 3280µF output capacitance 22 mVpk Turn-On Transient Rise Time From 10% to 90% of Vo 3 5 ms Turn on Delay (Remote on/off) Vin=12V, Io=min-max. (With 10% of Vo) 5 ms Minimum Output Capacitance 1300 5000 µF EFFICIENCY Vo=0.59V Vin=12V, Io=20A 76.8 % Vo=0.9V Vin=12V, Io=20A 82.1 % Vo=1.1V Vin=12V, Io=20A 83.8 % Vo=1.2V Vin=12V, Io=20A 85.1 % Vo=1.5V Vin=12V, Io=20A 86.6 % Vo=2.5V Vin=12V, Io=20A 89.7 % Vo=3.3V Vin=12V, Io=20A 90.4 % Vo=5.0V Vin=12V, Io=20A 93.4 % FEATURE CHARACTERISTICS Switching Frequency Fixed 600 KHz ON/OFF Control Positive logic (internally pulled high) Logic High Module On (or leave the pin open) 1.2 V Logic Low Module Off 0.8 V Power Good Delay All conditions (within 90% of Vo) 6 ms Power Good Signal Vo is outside +/-10% of Vo, set 0 0.4 V Vo is Within +/-10% of Vo,set 5.0 V GENERAL SPECIFICATIONS Calculated MTBF 25℃, 300LFM, 80% load 6.33 Mhours Weight 8.8 grams
Figure 25. Enable Input drive circuit for D12S05020 than 0.4V while sinking 1mA. is detected or when the converter is disabled by ENABLE. application could define the amperage rating of the fuse.
DS_D12S05020_10282008 FEATURES DESCRIPTIONS (CON.) Over-Current and Short-Circuit Protection The D12S05020-1 series modules have 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 MOSFETs. The voltage drop across the MOSFET is also a function of the MOSFET’s Rds(on). 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 stop all PWM outputs, turn on low-side MOSFET and pull low the PGOOD signal to prevent any damage to load. Paralleling D12S05020-1 series converters do not have built-in current sharing (paralleling) ability. Hence, paralleling of multiple D12S05020-1 series converters is not recommended. Output Voltage Programming The output voltage of the D12S05020-1 series is adjusted by connecting an external resistor between the trim pin and output ground as shown Figure 27and the typical trim resistor values are shown in Table 1. Unit Vin Vout Enable Trim(+) GND GND Rtrim Figure 27: Trimming Output Voltage The D12S05020 series module has a trim range of 0.59V to 5.0V. The trim resistor equation for the D12S05020 series is: 59.0 18.1)( −=Ω VoutRtrim Vout is the output voltage set point Rtrim is the resistance between Trim and Ground Rtrim values should not be less than 240Ω and shall be with 0.1% or better tolerance. Output Voltage Rtrim ( Ω) 0.59V open 0.9 V 3.83k 1.1 V 2.32K 1.2 V 1.94K 1.5 V 1.30K 2.5V 618 3.3V 435 5.0V 267 Table 1: Typical trim resistor values
DS_D12S05020_10282008 MECHANICAL DRAWING PIN# Function
1 Vout
5 ENABLE
7 SENSE+
8 SENSE-
DS_D12S05020_10282008 D12S05020-1 SERIES MODEL LIST Model Name Input Voltage Output Voltage Output Current 5Vout OCP typical Lead Free Pin Length CONTACT: www.delta.com.tw/dcdc USA: Telephone: East Coast: (888) 335 8201 West Coast: (888) 335 8208 Fax: (978) 656 3964 Email: DCDC@delta-corp.com Europe: Telephone: +41 31 998 53 11 Fax: +41 31 998 53 53 Email: DCDC@delta-es.tw 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