AH100W48V033V30AN AH100W48V033V30AN AH100W48V033V30AN 4 48 8V V 3 30 0A A 3 3..3 3V V IIs so olla at te ed d D DC C- -D DC C C Co on nv ve er rt te er r in out out in out out High Efficiency, Half Brick High Efficiency, Half Brick Features Features Features · Very high efficiency: 90%@30A, 91.5%@20A · Wide input voltage range (36 to 75Vdc) · Low profile, industry standard footprint and pinout: 2.3" x 2.4" x 0.4" (58.4mm x 61.0mm x 10.2mm) · Total weight: 63g. (2.22oz.) · Remote ON/OFF · Output voltage trim · Remote sense · Fixed Frequency (250 KHz) · Under voltage lockout (UVLO) – auto recover · Over voltage protection – auto recover · Over current protection – auto recover · Over temperature protection – auto recover · Operating temperature -40/+100°C · Input to Output Isolation at 2000Vdc,10M: Product Highlights Product Highlights Product Highlights · CSA/US, CSA, TUV and KEMA Certified · ISO 9001 Certified manufacturing processes · The AH Family of dc-dc converters is Ault’s solution for next generation, cutting-edge board applications. · Synchronous rectification uses MOSFET instead of Schottky diodes providing extreme reduction in heat generation, boosting efficiency, eliminating the need for a heat sink and increased reliability. · Low profile (0.4”), open frame construction allows smaller card pitch and improves system ventilation. · Fixed switching frequency provides predictable EMI characteristics. 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com AH100W±48V±3.3V High Efficiency DC-DC Converter OPEN-FRAME VERSION METAL-PLATE VERSION M3x0.5 (4x) (THREAD LENGHT 8mm FROM METAL PLATE) (58.42) R0.08 R0.08 1.90 (R2) 1.90 (R2) (5.08) (48.26) (5.08) (48.26) 1 9 8 2 7 6 3 4 0.04 (6x) 0.04 (6x) (1 (6x)) (1 (6x)) BOTTOM VIEW 0.08 (2x) 0.08 (2x) (2 (2x)) (2 (2x)) SIDE VIEW METAL PLATE 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com 2.40 2.00 (50.80) (5.08) 0.40 (10.16) (2.81) 0.40 0.60 (10.16) (15.24) (10.16) (7.62) 0.40 0.30 0.30 0.40 0.30 (10.16) (7.62) (7.62) (10.16) (7.62) 2.40 (60.96) 2.00 (50.80) (5.08) 0.40 0.60 (12.3) (2.81) (10.16) (15.24) (10.16) (7.62) (10.16) (7.62) (7.62) (10.16) (7.62) AH100W±48V±3.3V High Efficiency DC-DC Converter Specifications Specifications Specifications (Typical values are at nominal input line, full load, airflow 300 LFM, 25°C ambient temperature unless otherwise specified) Input characteristics Notes & Conditions Min Typ Max Units Operating Input Voltage Range Note 1 36 48 75 V Input Surge Voltage T< 10ms 100 V Input Under-Voltage Lockout Turn-On Voltage Threshold 35.0 35.2 35.4 V Turn-Off Voltage Threshold 31.7 31.9 32.1 V Lockout Hysteresis Voltage 3.3 3.3 3.3 V Maximum Input Current (I ) V =36V; Full Load 3.5 A INmax IN No-load Input Current 50 60 mA Off Converter Input Current 4 6 mA 2 Inrush Current Transient Rating 0.03 A s Input Reflected-Ripple Current RMS; see figures 6,7 5 7 mA Output Characteristics Notes & Conditions Min Typ Max Units Output Voltage Set Point 50 % Load 3.28 3.30 3.32 V Output Voltage Regulation Over Load ± 3 ± 5 mV Over Line ± 3 ± 5 mV Over Temperature ± 15 ± 30 mV Total Output Voltage Range 3.25 3.35 V Output Voltage Ripple and Noise 20 MHz bandwidth Peak to Peak 70 mV Full load, 2x10mF RMS 25 mV ceramic; see fig. 6, 8 Operating Output Current Range 0 - 30 A Output Voltage Output DC Current Limit Inception 31 34 39 A 10% low Output DC Current Limit Shutdown See figure 5 2.3 V Voltage Admissible Output Capacitance Full load, resistive 0 50000 mF Dynamic Characteristics Notes & Conditions Min Typ Max Units 470mF load cap. Output Voltage Current Transient 1A/ms; see figure 3 Positive Step Change in I 50% to 75% load 100 mV OUT Negative Step Change in I 75% to 50% load 100 mV OUT Settling Time to 1% 200 ms Turn On Transient See figures 1, 2 Overshoot 0 mV Turn On Time Full load 15 20 ms 10mF load Output Voltage Overshoot 3 % capacitance, Iout= 0A Efficiency Notes & Conditions Min Typ Max Units Load 100% Vin=50V 89 90 % Load 67% Vin=50V 91 91.5 % Load 33% Vin=50V 91 91.5 % NOTE 1 : Absolute max. input voltage 80V 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com AH100W±48V±3.3V High Efficiency DC-DC Converter Isolation Characteristics Notes & Conditions Min Typ Max Units Isolation Voltage input to output Basic isolation 2000 V DC Isolation Voltage Input to plate Basic isolation 2000 V DC Isolation Capacitance 5500 pF Isolation Resistance 10 MW Feature Characteristics Min. Typ. Max Units Switching frequency 250 kHz ON/OFF Control Off-State Voltage 2.7 15 V On-State Voltage 0 0.8 V Output Voltage Trim Range -20 +10 % Output Over-Voltage Protection 130 % Over-Temperature shutdown PCB Hot Spot 125 °C General Characteristics Notes & Conditions Min Typ Max Units Operating Range Temperature Maximum Rating -40 +100 °C Storage Temperature Maximum Rating -50 +120 °C Relative Humidity Non condensing 5 95 % Bellcore Issue 4 Calculated MTBF 1,965,099 hours RDF93 HRD Issue 5 Safety and Regulatory TUV and KEMA certified for compliance to EN06950 requirements CSA 22.2 No. 950-95(US and Canada) certified with basic insulation for compliance to UL 1950. Note : An external input fuse must always be used for compliance to listed safety requirements. CE compliant per 72/23/EEC (Low voltage directive) and 93/68/EEC to facilitate CE Mark at system level. Material flammability rating, UL94V-0 NEBS compliant 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com AH100W±48V±3.3V High Efficiency DC-DC Converter Performance Curves Performance Curves Performance Curves Figure 1. Turn-on transient at full rated current (resistive load) Figure 2. Turn-on transient at zero load. U pper Trace: Vout (1V/div) Upper Trace: Vout (1V/div) Lower Trace: Remote Enable signal (5V/div) Lower Trace: Remote Enable signal (5V/div) Figure 3. Output Voltage response (100mV/div ) to a step- change in Figure 4. Output Voltage response (100mV/div ) to a step- change in load load current (50% - 75% - 50% of Imax:dI/dt=1A/ms Load capacitance: current (50% - 75% - 50% of Imax:dI/dt=0.1A/ms). Load capacitance: 10mF, 470mF, 30mOhm ESR tantalum capacitor and 1mF ceramic capacitor. 100mOhm ESR tantalum capacitor and 1mF ceramic capacitor. 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com AH100W±48V±3.3V High Efficiency DC-DC Converter Figure 7 Figure 8 Source impedance DC/DC Vout Is Converter - Ic - Cerami c Cerami c cap ESR cap Figure 5. Load current (10A/div) vs time when converter Figure 6. Test set-up diagram showing measurement point for attempts to turn on into 10mOhm short circuit. Input Reflected Ripple Current and Output Voltage Ripple. Figure 7. Input reflected ripple current at nominal input voltage Figure 8. Output voltage ripple at nominal input voltage and and rated load current (see Fig.6) rated load current. Load cap: 20mF ceramic capacitor ** see note below (see Fig.6) **Output ripple measure: care must be taken to insert the output capacitors in the output current paths. The measurements is taken with the following output capacitors: -2x AVX PN CM316X5R106K006AT -2x Murata PN GRM31CR60J106KC01L -2x Taiyo Yuden PN JMK316B106KL 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com AH100W±48V±3.3V High Efficiency DC-DC Converter 1 6 1 4 1 2 1 0 36V in 48V in 8 75V in 6 4 2 0 0 5 10 1 5 2 0 2 5 3 0 O utp u t C u rre n t [A ] 16 14 12 10 36Vin 8 48Vin 75Vin 6 4 Figure 9. Efficiency vs. load current for minimum, nominal and maximum input voltages. 2 0 0 5 10 15 20 25 30 Output Current [A] Figure 10. Power dissipation vs. load current for minimum, nominal and maximum input voltage. 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com Power Dissipation [W] Power Dissipation [W] AH100W±48V±3.3V High Efficiency DC-DC Converter Air Flow 30 25 20 0 LFM 100 LFM 15 200 LFM 10 300 LFM 5 400 LFM 0 0 25 40 55 70 85 Ambient Air Temperature (°C) Figure 11: Maximum output power derating curves vs. Figure 12: Thermal plot of converter at 30 amp load ambient air temperature for airflow rates of 0 LFM through current with 25°C air flowing at the rate of 0 LFM. 400 LFM with air flowing from input to output and Converter in vertical position with air flowing from input to nominal input voltage. output. 30 25 Air Flow 20 15 100 LFM 200 LFM 10 300 LFM 5 400 LFM 0 0 25 40 55 70 85 Ambient Air Temperature (° C) Figure 13: Maximum output power derating curves vs. Figure 14: Thermal plot of converter at 30 amp load ambient air temperature for airflow rates of 100 LFM current with 40°C air flowing at the rate of 300 LFM. through 400 LFM with air flowing from output to input Converter in vertical position with air flowing from output and nominal input voltage. to input. 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com Iout (A) Iout (A) AH100W±48V±3.3V High Efficiency DC-DC Converter Features and Pins description Features and Pins description Features and Pins description REMOTE ON-OFF CONTROL The default logic is negative, where the Remote On/Off (pin 3) input is referenced to -Vin (pin 1). The Remote On/Off signal must be lower than 0.8V to enable the output voltage, and higher than 2.7V to disable the output voltage. Positive logic is an available option, add “–P” to the end of the ordering code. TRIM The output voltage can be trimmed by means of an external resistor connected between Trim (pin 6) and +Sense (pin 6) or -Sense (pin 8). The selection of the resistor follows the industry standard trim equation. An external resistor connected between Trim and –Sense pins will decrease the output voltage. For a decrease of D% of the nominal output voltage, calculate the value of the external resistor using the following equation: æ - ö 100% V V æ ö nominal target ç ÷ R = - 2kW , where D = ´100% ç ÷ trim-down ç ÷ D è ø V nominal è ø TRIM DOWN 1000 100 10 1 0 2 4 6 8 10 12 14 16 18 20 % Decrease in Output Voltage Figure A An external resistor connected between Trim and +Sense pins will increase the output voltage. For an increase of D% of the nominal output voltage, calculate the value of the external resistor using the following equation: æ ö V nom ç ÷ - 2 · + V V tar nom ç ÷ V ref è ø R = k , where V = Nominal Voltage, V = Target Voltage, V =1.225 V trim-up nom tar ref - V V tar nom 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com Trim Resistance (kOhms) AH100W±48V±3.3V High Efficiency DC-DC Converter TRIM UP 1000 100 10 0 1 2 3 4 5 6 7 8 9 10 Figure B % Increase in Output Voltage SENSE (+ or -) The +Sense or –Sense pins must be connected to the load or output pins of the converter. To ensure tight regulation at the system critical load, then the remote sense pins should be connected to the system critical load. Reference applicable section of data sheet for maximum voltage compensation. Ensure sufficient margin to the over voltage threshold, review applicable sections of the data sheet and system loading: output over-voltage protection –Vs- system transient load condition(s). THERMAL CONSIDERATIONS The converter has internal thermal protection preventing hot spots on PCB from exceeding 120°C (248 °F), reference Figures 12 and 14. Margin to the temperature protection limit should be verified in the application. During an abnormal condition that induces an increase in the converter temperature, the converter output voltage will fold back when the over temperature protection threshold is reached. The converter will auto-recover when the fault condition is corrected and time allowed for the converter to cool down. OVERCURRENT PROTECTION The overcurrent limit inception is typically 110% of the rated output current. When the overcurrent limit inception is exceeded the output voltage will decrease proportional to the increase in the load current. Further increase in the load current will cause the output voltage to trip the under voltage protection threshold and enter fault protection, or hiccup reference Figure 5. The converter will enter fault protection typically at 125% of rated output current. When the fault is removed the converter will auto recover. Ordering code Ordering code Ordering code AH100W48V033V30AN Option code Option code Option code -P for Positive Logic, example AH100W48V033V30AN-P -PL for Cold Plate, example AH100W48V033V30AN-PL 7105 Northland Terrace Minneapolis, MN 55428-1028 USA Tel:763.592.1900 FAX:763.592.1911 WEB:www.aultinc.com Trim Resistance (kOhms)