Aquarius 48V Input, 5.0VDC, 20A Output Eighth-brick The Aquarius Series is the highest power eighth-brick DC/DC converter in the industry. Industry Standard Pinout and Footprint No Heat Sink Required Very Low Common-mode Noise for a Commercial DC/DC Converter Two-stage Input Filter Constant Switching Frequency Remote Sense Single Board Design Very Low Parts Count Two Year Warranty Quarter-brick The Aquarius Series of eighthbrick DC/DC converters in Galaxy's CoolConverter™ line provides both exceptional performance and high density. Half-brick Control Functions Uses Patented Power Supply Control and Architecture Microprocessor Controlled Primary-side Enable, Choice of Logic Protection Features GAQW5V020 Features: 48V Input 5.0VDC, 20A Output 3-Quarter-brick Over Temperature Protection Over Voltage Protection Over Current Protection Over/Under Input Voltage Protection High Efficiency: 89% at 5.0V, 20A 91% at 5.0V, 10A Typical Characteristics Output Setpoint Accuracy: ± 1% Load Regulation: ± 0.2% Line Regulation: ± 0.2% Regulation over Line, Load, and Temperature: ± 2% Low Output Ripple Output Trim SIP ISO 9001 CERTIFIED ORGANISATION ® Certified to ISO 9001:2000 Part No. 02-GAQ-01 Rev. 3.0 – 041405 Galaxy Power Inc. 155 Flanders Road WWW.GALAXYPWR.COM Westborough, MA 01581 Telephone: 508-870-9775 GAQW5V020 – 1 Fax: 508-870-9796 e-mail: [email protected] General Specifications VIN = 48VDC, TA@25° C, 300 LFM Airflow, VOUT=5.0VDC, IOUT = Full Load unless otherwise noted. Available output power depends on ambient temperature and good thermal management. (See application graphs for limits.) Input Characteristics Parameter Min Typ Max Units Operating Input Voltage 36 48 75 VDC 4 A Input Current Input Capacitance 3 µF Input Hysteresis, Low Line 2 VDC Output Characteristics Regulation Over Line, Load & Temperature 4.90 5.10 V Voltage Ripple 20 mVRMS Voltage Ripple, 20MHz BW 50 mVP–P 0 20 A 20.6 28 A 40 A 8 %VOUT 200 µS 35 mS Current Range Current Limit Inception Short Circuit Current, Peak1 Output Transient Response, 50% to 75% load change, 1A/µsec2 Settling Time to ± 1% Turn-on Time to 98%Vnom Output Overshoot at Turn-on 0 Trim Range 70 Overvoltage Protection, Latching %VOUT 110 130 %VOUT %VOUT Isolation Isolation Test Voltage, Input/Output (Basic) Isolation Resistance 2250 VDC 10 MΩ Features Overtemperature Protection, Thermal Sensor, Latching3 110 Switching Frequency, Fixed 250 °C kHz Notes: 1. During short circuit, converter will shut down and attempt to restart once per second. The average current during this condition will be very low and the device can be safely left in this condition continuously. 2. Limited by output energy storage. For improved performance see Tuned (T) model information. 3. PCB less than 130° C General Specifications Approvals and Standards Operating Temperature –40° C to +100° C Storage Temperature –55° C to +125° C Relative Humidity Vibration 2 to 9Hz, 3mm disp., 9 to 200Hz, 1g Material Flammability Weight MTBF 10% to 95% RH, Non-condensing UL V-0 UL and c-UL Recognized Component, TUV**, UL60950, CSA 22.2 No. 950, IEC/EN 60950 EMC Characteristics: Designed to meet emission and immunity requirements per EN55022, CISPR 22, Class B, and CISPR 24. ** An external fuse shall be used to comply with the requirements. 27 grams Telcordia (Bellcore) WWW.GALAXYPWR.COM GAQW5V020 – 2 Galaxy Power Inc. 2.2 million hours 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Part No. 02-GAQ-01 Rev. 3.0 – 041405 Fax: 508-870-9796 e-mail: [email protected] Application Notes CoolConverter™ Galaxy’s proprietary CoolConverter™ provides: • Patented single-stage power conversion architecture, control, and magnetic design allow unprecedented power density and efficiency in an isolated power supply. • An advanced microcontroller reduces parts count while adding features, performance, and flexibility in the design. • Low common-mode noise as a result of lower capacitance in the transformer from balanced winding design. Protection and Control Normalized Output Voltage 1.0 0 76.5 77 77.5 78 79 78.5 79.5 80 80.5 36 37 Input Voltage (V) Undervoltage Hysteresis 1.0 Normalized ON/OFF Logic Option: The ON/OFF control logic can be either Negative (standard) or Positive to enable the converter. For Negative logic the ON/OFF pin is brought to below 1.0V with respect to the –INPUT pin to enable the converter. The pull down must be able to sink 100µA. For Positive logic the ON/OFF pin is brought to greater than 4.0V with respect to the –INPUT pin and be limited to less than 10V. To request the Positive logic version, add the suffix (P) to the standard part number. The ON/OFF pin has a built-in pull up resistor of approximately 100kΩ to +5V. Overvoltage Hysteresis Output Voltage Valid Input Voltage Range: The converter measures the input voltage and will not allow operation outside of the input voltage specification. As shown by the graphs, hysteresis is added to both the high and low voltage to prevent the converter from turning on and off repeatedly when the voltage is held near either voltage extreme. At low line this assures the maximum input current is not exceeded; at high line this assures the semiconductor devices in the converter are not damaged by excessive voltage stress. 0 30 31 32 33 34 35 Input Voltage (V) Part No. 02-GAQ-01 Rev. 3.0 – 041405 Galaxy Power Inc. 155 Flanders Road WWW.GALAXYPWR.COM Westborough, MA 01581 Telephone: 508-870-9775 GAQW5V020 – 3 Fax: 508-870-9796 e-mail: [email protected] Application Notes Thermal Shutdown: The printed circuit board temperature is measured using a semiconductor sensor. If the maximum rated temperature is exceeded, the converter is latched off. To re-enable the converter requires cycling the ON/ OFF pin or power to the converter. If non-latching is required, consult factory. Control Options: As the behavior of the circuit is determined by firmware in the microcontroller, specific customer requirements such as • non-latching thermal protection • custom valid input voltage range • controlled delay from initiating an ON/OFF signal for power sequencing can be accomplished with no change to hardware. The standard behavior was chosen based on system design experience but we understand that customers often have their own requirements. Please consult Galaxy Power for your special needs. Remote Sense: The output voltage is regulated at the point where the sense pins connect to the power output pins. Total sense compensation should not exceed 0.4V or 10% of Vout, whichever is greater. Trim: To trim the output voltage higher, connect the required trim resistor from the Trim pin to the +Sense pin. To trim the output voltage lower, connect the required trim resistor from the Trim pin to the –Sense pin. Trim-up RTRIM-UP= { } 5.0 (100+∆%) (100+2∆%) – 1.225∆% ∆% 5.11kΩ 5.0V Trim-up 10000 Trim Resistance (kΩ) Output Over Voltage Protection: The output voltage is constantly monitored by the microprocessor with a redundant secondary-side measurement circuit that both shuts down the duty cycle and triggers the microprocessor to shut down. If the output voltage exceeds the over-voltage specification, the microprocessor will latch the converter off. To turn the converter on requires either cycling the ON/OFF pin or power to the converter. This advanced feature prevents the converter from damaging the load if there is a converter failure or application error. If non-latching is required, consult factory. 1000 100 0 1 2 3 4 5 6 7 8 9 10 Increase in Output Voltage (%) Trim-down RTRIM-DOWN = { } 100 ∆% –2 5.11kΩ Trim-down Safety: An external input fuse must always be used to meet these safety requirements. Trim Resistance (kΩ) 1000 100 External Output Trimming 10 0 1 2 3 4 5 6 7 8 9 10 Decrease in Output Voltage (%) +Sense Trim Up Trim 10KΩ Trimpot Trim Down –Sense WWW.GALAXYPWR.COM GAQW5V020 – 4 Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Part No. 02-GAQ-01 Rev. 3.0 – 041405 Fax: 508-870-9796 e-mail: [email protected] GAQW5V020 Operation Power Dissipation Efficiency 14 Power Dissipation (W) 93 Efficiency (%) 91 89 87 85 83 81 36V Vin 48V Vin 75V Vin 79 77 12 10 8 6 2 0 75 5 0 10 15 36V Vin 48V Vin 75V Vin 4 5 0 20 10 15 20 Output Current (A) Output Current (A) Voltage Ripple Start Up CH2 CH1 CH3 1) Vout 20mV/div 2µS/div 10µF ext cap 20MHz BW 1) Vout 2V 4mS/div 2) Iout 10A/div 3) Enable 5V/div Transient Response Line/Load Regulation Output Voltage (V) 5.04 CH1 CH2 36V Vin 48V Vin 75V Vin 5.02 5.00 4.98 0 Part No. 02-GAQ-01 Rev. 3.0 – 041405 155 Flanders Road 5 15 10 20 Output Current (A) 1) Vout 200mV/div 200µS/div 2) Iout 10A/div Galaxy Power Inc. Setpoint Accuracy 0.1120% Line Regulation 0.0180% Load Regulation 0.0090% Line & Load Regulation 0.0260% WWW.GALAXYPWR.COM Westborough, MA 01581 Telephone: 508-870-9775 GAQW5V020 – 5 Fax: 508-870-9796 e-mail: [email protected] GAQW5V020 Operation Back Bias Thermal Derating Crosswise Airflow Output Current (A) 25 20 15 10 300 LFM 200 LFM 100 LFM 5 0 0 10 20 1) Vout 1V/div 20mS/div 50 60 70 80 90 Lengthwise Airflow 25 6.0 5.0 Output Current (A) Output Voltage (V) 40 Thermal Derating Over-current Protection Note: Over-current protection is blip-mode (aka hiccup). 4.0 36V Vin 48V Vin 75V Vin 3,0 2.0 1.0 0 20 30 Ambient Temperature (°C) 20 15 10 Open Frame: 300 LFM 200 LFM 100 LFM 5 0 22 24 26 28 30 0 10 20 30 40 50 60 70 80 90 Ambient Temperature (°C) Output Current (A) Over Voltage Protection 1) Vout 1V/div 0.25mS/div WWW.GALAXYPWR.COM GAQW5V020 – 6 Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Part No. 02-GAQ-01 Rev. 3.0 – 041405 Fax: 508-870-9796 e-mail: [email protected] PACKAGE DETAIL Pin Configuration .385 8 .270 REF. .011 MIN. .600 PIN 4 .450 PIN 5 .300 PIN 6 .150 PIN 7 0.00 PIN 8 PIN 3 .600 .90 PIN 2 .300 PIN 1 0.00 .15 BOTTOM VIEW .14 2.000 —Bottom View Pin Function Pin Dia. (in.) 1 + Input 0.040 2 On/Off 0.040 3 – Input 0.040 4 – Output 0.060 5 – Sense 0.040 6 Trim 0.040 7 + Sense 0.040 8 + Output 0.060 Notes: 1. Mechanical tolerances x.xxx in. = ± 0.005 in. x.xx in. = ± 0.01 in. 2. Pin material: Brass with tin/lead plating over nickel 3. Workmanship: Meets or exceeds IPC-A-610B Class II 2.28 ORDERING INFORMATION Standard Model Number GAQW5V020* Input Voltage Output Voltage Max Current 48V 5.0V 20A * Options: P = Positive Logic Version; High = On E = 0.18" Pins (± .01") M = 0.145" Pins (± .01") S = 0.12" Pins (± .01") T = Tuned model** **T (Tuned Model) Option Designed for higher di/dt and ∆I applications, the transient response has been modified to take advantage of the capacitance on the customer's PCB. This unit requires a minimum load capacitance of 5600µF with an impedance magnitude of less than 0.005Ω at 15kHz. It offers a minimum 3X improvement in the peak response compared to a standard unit. Example Part No.: (All options shown) GAQW5V020 P S T Part Number Options: Positive Logic Version Optional Pin Lengths E = 0.18" M = 0.145" S = 0.12" Tuned Model Galaxy Power Inc. warrants to the original purchaser that the products conform to this data sheet and are free from material and workmanship defects for a period of two (2) years from the date of manufacture, if this product is used within specified conditions. Galaxy Power Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such products or information. For additional details on this limited warranty consult the factory. Part No. 02-GAQ-01 Rev. 3.0 – 041405 Galaxy Power Inc. 155 Flanders Road WWW.GALAXYPWR.COM Westborough, MA 01581 Telephone: 508-870-9775 GAQW5V020 – 7 Fax: 508-870-9796 e-mail: [email protected]