GALW9V647E GALAXY | Alldatasheet

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Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com SIRIUS Eighth-brick Half-brickHalf-brick SIPSIP 3-Quarter-brick3-Quarter-brick ISO 9001 CERTIFIED ORGANISATION Certified to ISO 9001:2000 The Sirius can be used to replace a bus converter with the added benefit of a regulated output and wide-range telecom input voltage range (36-75V). GALW9V647 Features 48V Input 9.6VDC, 47A Output High Efficiency 93.5% at 9.6V, 47.0A 94.5% at 9.6V, 23.5A The Sirius is a 450W "stretched" quarter-brick in Galaxy Power's CoolConverter™ line of high-efficiency DC/DC converters. Very Low Common-mode Noise for a Commercial DC/DC Converter Two-stage Input Filter Constant Switching Frequency Single Board Design, Very Low Parts Count "Stretched" quarter-brick 1.45"x4.25"x0.95" including integrated heatsink Two Year Warranty Control Functions Patented Power Supply Control and Architecture Microprocessor Controlled Primary-side Enable, Choice of Logic Protection Features Over T emperature Protection Over Voltage Protection Over Current Protection Over/Under Input Voltage Protection Typical Characteristics Output Setpoint Accuracy: ± 5% Load Regulation: ± 2% Line Regulation: ± 0.2% Regulation over Line, Load, and T emperature: ± 10% Low Output Ripple Output T rim 48V Input, 9.6VDC, 47A Output

Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com General Specifications Operating T emperature –40 ° C to +100° C Storage T emperature –55 ° C to +125° C Relative Humidity 10% to 95% RH, Non-condensing Vibration 2 to 9Hz, 3mm disp., 9 to 200Hz, 1g Material Flammability UL V-0 Weight TBD MTBF T elcordia (Bellcore) TBD General Specifications VIN = 48VDC, TA@25° C, 300 LFM Airflow, VOUT=9.6V, 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 75 V DC Input Current, Low Line 13.5 A Input Capacitance 8 µF Input Hysteresis, Low Line 2 V DC Output Characteristics Output Voltage 9.2 9.6 10 V Output Power 450 W Over Voltage Protection, Latching 11.04 11.52 12.48 V Operating Output Current Range 0 47 A Output Current Limit 50 65 A Efficiency, Full Load1 93 %

Features

Overtemperature Protection, Thermal Sensor, Latching2 125 ° C Switching Frequency, Fixed 250 kHz Trim Range 8.64 10.56 V Notes: 1. For temperatre rise design calculation. 2. PCB less than 130° C.

Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com Undervoltage Hysteresis 30 34 37 Input Voltage (V) Output Voltage (V) 3632 33 3531 Overvoltage Hysteresis 76.5 78.5 80.5 Input Voltage (V) Output Voltage (V) 79.577.5 78 80 7977 CoolConverter™ Galaxy’s proprietary CoolConverter™ provides:

  • P atented 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. Application Notes Protection and Control 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. ON/OFF Logic Option: The ON/OFF control logic can be either Positive (standard) or Negative to enable the converter. For Negative logic, bring the ON/OFF pin to less than 1.0V with respect to the –INPUT pin to enable the converter. The pull-down must be able to sink 100µA. For Positive logic, bring the ON/OFF pin to greater than 4.0V with respect to the –INPUT pin and be limited to less than 10V. The ON/OFF pin has a built- in pull up resistor of approximately 100kΩ to +5V.

Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com Application Notes 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 specifi- cation, 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 ad- vanced feature prevents the converter from damaging the load if there is a converter failure or application error. If non-latching is required, consult factory. 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. Safety: An external input fuse must always be used to meet these safety requirements. External Output T rimming RTRIM-UP = Vo (100+∆%) – (100+2∆%) 5.11kΩ 1.225∆% ∆%{ } + Out Trim – Out Decrease in Output Voltage (%) 1000 100 0 1 234567891 0 Trim Resistance (kΩ) Trim-down Trim-up: Trim-down: Trim: To trim the output voltage higher, connect the required trim resistor from the T rim pin to the +Out pin. T o trim the output voltage lower, connect the required trim resistor from the T rim pin to the –Out pin. RTRIM-DOWN= 100 – 2 5.11k Ω ∆%{ }

Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com GALW9V647 OPERATION Efficiency 02 0 5 0 Output Current (A) Efficiency (%) 36V Vin 48V Vin 75V Vin 3010 40 Power Dissipation 02 0 3 04 05 0 Output Current (A) Power Dissipation (W) 36V Vin 48V Vin 75V Vin Start Up 1) Vout 2V/div 10mS/div 2) Iout 10A/div 3) Enable 5V/div CH1 CH2 CH3 Transient Response 1) Vout 500mV/div 400µS/div 2) Iout 10A/div CH2 CH1 Voltage Ripple 1) Vout 50mV/div 1µS/div 2) Iout 10A/dif CH2 CH1 Line/Load Regulation 10.6 10.4 10.2 10.0 9.8 9.6 9.4 9.2 9.0 8.8 8.6 01 0 2 0 Output Current (A) Output Voltage (V) 36V Vin 48V Vin 75V Vin 30 40 50 Setpoint Accuracy 0.6396% Line Regulation 0.0212% Load Regulation 0.1638% Line & Load Regulation 0.1794%

Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com Over-current Protection 47 67 Output Current (A) Output Voltage (V) 5752 62 Note: Over-current protection is blip-mode (aka hiccup). 36V Vin 48V Vin 75V Vin GALW9V647 Operation Back Bias 1) Vout 2V/div 10mS/div 2) Enable 5V/div CH1 CH2 Thermal Derating 02 0 3 0 8 0 9 0 Ambient Temperature (°C) Output Current (A) Lengthwise:

400 LFM

200 LFM

1) Vout 2V/div 4mS/div

Galaxy Power Inc. 155 Flanders Road Westborough, MA 01581 Telephone: 508-870-9775 Fax: 508-870-9796 e-mail: info@galaxypwr.com PACKAGE DETAIL 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.

Ordering Information

Standard Model Input Output Max Number Voltage Voltage Current GALW9V647E* 48V 9.6V 47A * Options: E = 0.18" pins (± 0.01") Note: Standard unit is positive logic and requires 2000µF of output load capacitance for stability. Pin Function Pin Dia. (in.) 1+ Input 0.040 2 On/Off 0.040 3– Input 0.040 4– Output 0.060 5T rim 0.040 6+ Output 0.060 Pin Configuration —Bottom View