ARIES Series 5V Input, 3.3VDC, 24A Output, 3.2–5V Input, 2.5VDC, 24V Output The Aries Series are very high efficiency non-isolated DC/DC Converters with: Horizontal or Vertical Mount Very High Efficiency 2.5V or 3.3V Output @ up to 24A Fixed Frequency Operation Trimmable Over Voltage Protection Output Voltage Trim Two Year Warranty Control Functions Remote Sense Output Enable Protection Features Over Temperature Protection Over Voltage Protection Over Current Protection Typical Characteristics Output Setpoint Accuracy: ±1% Load & Line Regulation: ±0.5% Noise & Ripple: 90mVp-p Total Regulation: ±5% Output Trim Aries Series, Page 1 WWW.GALAXYPWR.COM Part No. 99–001 Rev. 2.2 General Specifications Operating Air Temperature from 0°C to +45°C with 500 LFM. 3.3V Output Unit Input Characteristics Parameter Symbol Test Condition Min Operating Input Range VI IO = 24A 4.5 No Load Input Power PIL VI = VInom — Input Current II VI = 5V, IO = 24A, VO = 3.3V — Efficiency N VI = 5V, IO = 24A, VO = 3.3V 88 Reflected Input Ripple (Note 1) dII VI = 5V, IO = 24A — Switching Frequency FS — Output Characteristics (Over the complete baseplate temperature and input voltage ranges.) Output Voltage Set Point VO VI = 5V, IO = 12 A 3.267 Rated Output Current IO VO = VOnom (externally) — Load & Line Regulation VI = 4.5–5.5V, IO = 0-24A — Noise and Ripple VI=5.0V, IO = 24A — Load Range 0 Total Regulation VI = 4.5–5.5V, IO = 0-24A 3.135 (Load, Line, Temp, Drift) — Remote Sense Compensation VI = 4.5–5.5V, IO = 24A (Round Trip) Output Overvoltage Protection (Nom) VI = 5V, IO = 12A, VO = 3.3V 3.8 See Note 3, Latching Output Voltage Protection tOVP VI = 5V, IO = 12A, VO = 3.3V — Response Time Current Limit (Nom) IL VI = 5V, VO = 3.3V 25 VI = 5V, IO = 42A — Short Circuit Output VSC Voltage Compliance Load Transient Response, VOPK IO = [email protected]/µs(di/dt), — pos or neg step VO Deviation from Steady State Settling Time VO = 3.3V — Turn on Time tON VI = 4.5–5.5V, IO = 0-24A — per figures 3, 4, & 5 External Load Capacitance (Note 2) 1000 Typ Max Units — — — — — 250 5.5 2 20 — 5.2 — V W A % AP–P kHz 3.300 24 — 60 — 3.300 3.333 V — A 15 mV 90 mVP–P 24 A 3.465 V — 100 mV — 4.2 V — 150 µs — — 30 0.6 A VO — 80 mV — — 1200 10 µs ms — 9900 µf Notes: 1. Input filter capacitor Cin= 1000µF (330µF, ESR 60mΩ, 3 capacitors in parallel) Provide 3" loop between positive terminal of Cin and Vin of the converter to measure reflected input ripple current. 2. The converter output voltage shall be stable when (30) 330µF (9900µF total) tantalum (ESR ≤60mΩ) capacitors are connected across the output of the converter. 3. Adjustment pins J2-18 & 19 are normally left open; see Output Voltage Setting Table on page 5 if using OVP and output voltage trim adjustment. General Specifications Operating Temperature 0°C to +45°C Ambient Air Temp. Storage Temperature –40°C to +100°C Relative Humidity 10% to 95% RH, Non-condensing Vibration 10–500Hz, 0.75g peak Material Flammability UL94V-0 Weight 100 grams typ. with heatsink MTBF MIL-HDBK-217E 1,200,000 hours* *Note: 50% load; 45°C ambient, 500LFM; calculated MTBF Aries Series, Page 2 WWW.GALAXYPWR.COM Part No. 99–001 Rev. 2.2 General Specifications Operating Air Temperature from 0°C to +45°C with 200 LFM. 2.5V Output Unit Input Characteristics Parameter Min Typ Max Units VI IO = 24A PIL VI = VInom II VI = 3.43V, IO = 24A, VO = 2.5V II VI = 5V, IO = 24A, VO = 2.5V N VI = 3.43V, IO = 24A, VO = 2.5V N VI = 5V, IO = 24A, VO = 2.5V dII VI = 3.43V, IO = 24A dII VI = 5V, IO = 24A FS 3.2 — — — 86 83.5 — — — — — — — — — — — 250 5.5 2 21.5 15 — — 3.0 5.2 — V W A A % % AP–P AP–P kHz Output Voltage Set Point VO VI = 5V, IO = 12A Rated Output Current IO VO = VOnom (externally) Load & Line Regulation VI = 3.2–5.5V, IO = 0-24A Noise and Ripple VI=5.0V, IO = 24A Load Range Total Regulation VI = 3.2–5.5V, IO = 0-24A (Load, Line, Temp, Drift) Remote Sense Compensation VI = 3.2–5.5V, IO = 24A (Round Trip) Output Overvoltage Protection (Nom) VI =3.43V, IO = 12A, VO = 2.5V See note 4, Latching Output Voltage Protection tOVP VI = 3.43V, IO = 12A, VO = 2.5V Response Time Current Limit IL VI = 5V, VO = 2.5V Short Circuit Output VSC VI = 5V, IO = 42A Voltage Compliance Load Transient Response, VOPK IO = [email protected]/µs(di/dt), VO Deviation from Steady State pos or neg step Settling Time VO = 2.5V Turn on Time tON VI = 3.19–5.5V, IO = 0-24A per figures 3, 4, & 5 External Load Capacitance (note 3) 2.470 — — — 0 2.370 2.495 24 — 60 — 2.495 — — 100 mV 2.76 — 2.94 V — — 150 µs 25 — — — 30 0.6 A VO — — 60 mV — — — — 1200 10 µs ms 150 — 9,900 µf Operating Input Range (See note 1) No Load Input Power Input Current Efficiency Reflected Input Ripple (See note 2) Searching Frequency Symbol Test Condition Output Characteristics 2.520 V — A 15 mV 90 mVP–P 24 A 2.620 V Notes: 1. Connector J1 pins 1, 2, 3, and 5 are all connected together. Connector J1 pin 4 is always connected to 3.3V rail. 2. Input filter capacitor Cin= 1000µF (330µF, ESR = 60mΩ, 3 capacitors in parallel) Provide 3" loop between positive terminal of Cin and Vin of the converter, to measure reflected input ripple current. 3. The converter output voltage shall be stable when (30) 330µf (9900µF total) tantalum (ESR ≤60mΩ) capacitors are connected across the output of the converter. 4. Adjustment pins J2-18 & 19 are normally left open; see Table IV if using OVP and output voltage trim adjustment. Aries Series, Page 3 WWW.GALAXYPWR.COM Part No. 99–001 Rev. 2.2 General Specifications Output Voltage Setting & Typical Output Voltage DC_OK_H Threshold — 3.3V Output Unit Trimmed Vout VOVP Trip R1 R2 Output Voltage -1.2% Typ Vo +1.2% -1.2% Typ +1.2% TRIM OVP DC_OK_H Threshold 2.662 2.919 3.031 3.154 3.264 2.694 2.954 3.068 3.192 3.303 2.727 2.989 3.105 3.231 3.343 3.642 3.660 3.723 3.819 3.915 3.687 3.705 3.768 3.865 3.962 3.731 3.749 3.814 3.912 4.010 2.26K 4.32K 6.65K 14.7K OPEN 10.6K 11.4K 15.4K 31.6K OPEN 2.809 ±6% 2.823 ±6% 2.871 ±6% 2.945 ±6% 3.019 ±6% Notes: 1. R1 and R2 are external to the converter and shall be 0.1% tolerance. 2. Connect R1 from connector J2 pin 18 to J2 pin 16 to adjust output. Connect R2 from connector J2 pin 19 to J2 pin 16 to adjust OVP level. 3. Output Voltage Setting tolerance ±1.2% at V1 = 5.0V & IO= 12A Output Voltage Setting & Typical Output Voltage DC_OK_H Threshold — 2.5V Output Unit Output VOVP Trip R1 Voltage Min Typ Max 2.000 2.200 2.300 2.400 2.500 2.40 2.46 2.56 2.66 2.76 2.50 2.52 2.60 2.70 2.80 2.60 2.64 2.74 2.84 2.94 R2 Output Voltage DC_OK_H Threshold 2.26K 4.32K 6.65K 14.7K OPEN 10.6K 11.4K 15.4K 31.6K OPEN 1.755 ±6% 1.775 ±6% 1.800 ±6% 1.895 ±6% 1.965 ±6% Notes: 1. R1 and R2 are external to the converter and shall be 0.1% tolerance. 2. Connect R1 from connector J2 pin 18 to J2 pin 16 to adjust output. Connect R2 from connector J2 pin 19 to J2 pin 1 to adjust OVP level. 3. Output Voltage Setting tolerance ±1.0% at V1 = 3.43V & IO= 12A Aries Series, Page 4 WWW.GALAXYPWR.COM Part No. 99–001 Rev. 2.2 Application Notes Control Signal Characteristics Parameter Enable_L Enable_L Source Current Enable_L Voltage Low Enable_L Voltage High Enable_L Low (Turn On Delay) Enable_L Low (Output Voltage) Bias Current (12 Volt) DC_OK_H High DC_OK_H Low Fault_H High (OVP latched) Fault_H Low Fault_H Source Current (OVP latched) Symbol Test Condition Min Typ Max Units — — — — 2.495 70 — — — — 1.0 0.8 — 10 2.532 100 — 0.8 5 0.8 mA V V ms V mA V V V V — — mA VI = 5V, IO = 24A — — 2.6 — 2.458 VI = 5V, IO = 24A — VI = 3.43V, IO = 24A, VO = ≥2.1V 3.3 VI = 3.43V, IO = 24A, VO = ≤1.8V — VI = 3.43V, IO = 24A 3.3 — I bias 10 Note: Fault–H occurs when the output voltage level is over the OVP threshold, pass transistor in the converter is shorted when input voltage is applied, or when a difference between input to output voltage exceeds 2.4 volts with the input voltage only at 3.3V nominal and not at 5V nominal. Enable L: This input signal is used to enable the output of the converter when activated (active Low). The signal is referenced to output side (-Sense) or GND. Turn-On Time TURN ON TIME FROM VENABLE GOING LOW 5V Enable Circuit Turn-On Time ON >5V OFF ≤0.6V Enable 0.8V To VENABLE Pin Time ON/OFF 2N7000 or Equivalent 90% To (–) Regulation Band VOUT 10% Time TON Output Load Conditions Aries Series, Page 5 WWW.GALAXYPWR.COM Part No. 99–001 Rev. 2.2 Package Detail J1 2.62 Max Heatsink fins cutaway for clarity 1.125 1 2 J3 AIRFLOW 1.425 1.67 MAX Connectors (Far Side) Pin Designation Pin Designation 1 3 5 7 9 VIN VIN VIN VIN RTN VIN RTN 2 4 6 8 10 VIN NC VIN RTN VIN RTN NC Pin Designation Pin Designation 1 3 5 7 9 11 13 15 17 19 VOUT RTN VOUT RTN VOUT RTN VOUT RTN VOUT VOUT VOUT +SENSE ENABLE_L OVP_ADJ 2 4 6 8 10 12 14 16 18 20 FAULT_H DC_OK_H VOUT RTN VOUT VOUT VOUT VOUT -SENSE TRIM +12V J2 J2 J1 2 1 10 2 9 1 20 19 NOTES: J1, J2, J3 PINS ON 0.100 CENTERS 0.550 1.250 OUTPUT PINS ARE 25MM SQ. TOP VIEW (HEAT SINK FACING UP) SIDE 2 0.625 MAX HEATSINK 0.045 ±0.010 0.28 0.145 0.30 MAX COMPONENT HEIGHT 0.318 MIN J3 HORIZONTAL MOUNT Horizontal mount. Mechanical support only. 0.30 0.38 2.60 MAX TOP VIEW SIDE 1 1.65 MAX 2 10 1 9 20 J2 19 2 1 J1 0.23 HEATSINK 1.250 0.550 0.045 20 19 2 10 1 9 0.100 2 1 0.255 0.455 HEATSINK 0.050 SIDE 2 0.710 MAX 2.600 MAX VERTICAL MOUNT ORDERING INFORMATION Standard Model Number Input Voltage Output Voltage Max Current Efficiency Typ @ max load GPA3V0-24H or V 3.2-5.0V 3.3V GPA3V0-16H or V 3.2-5.0V 3.3V GPA2V5-24H or V 5.0V 2.5V 24A 16A 24A 89.5% 83% 87% 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. Example: GPA3V0-24 H Part Number Option: Package Style H = Horizontal or V = Vertical 155 Flanders Road Westborough, MA 01581 508-870-9775 Fax: 508-870-9796 e–mail: [email protected] website: http://www.galaxypwr.com Aries Series, Page 6 WWW.GALAXYPWR.COM © Copyright 2000 Galaxy Power. Specifications subject to change without notice. Part No. 99–001 Rev. 2.2