Polaris Series The only true "quarter brick" on the market 48V Input, 1.5V, 2.2V, 3.3V, or 5.0V The Polaris Series is a high current 100W quarter brick DC/DC converter with: 100 Watts @ 100° Baseplate 67 Watts/cu. inch 1.2" x 2.4" x 0.5" Fixed Frequency Operation Remote Sense Output Voltage Trim Optional Heatsink UL and CSA approved Two Year Warranty Control Functions Remote Sense Primary and Secondary Output Enable Protection Features Over Temperature Protection Over Voltage Protection Over Current Protection Typical Characteristics Output Setpoint Accuracy: ±1.25% Load & Line Regulation: ±0.25% Noise & Ripple: 75 mVp–p (1.5, 2.2V) 100 mVp–p (3.3, 5.0V) Long Term Temperature Drift: ±0.5% Output Trim Polaris Series, Page 1 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0 Specifications General Specifications Operating Temperature 0°C to +100°C baseplate Storage Temperature –40°C to +100°C Relative Humidity 10% to 95% RH, Non–condensing Vibration 10–500Hz 0.75g peak Weight 80gm, max. without heatsink Material Flammability UL94V–2 Safety UL 1950, CSA C22.2 No. 950 approved1 MTBF MIL–HDBK–217 1,000,000 hours2 Notes: 1. Requires one fuse located in either the plus or minus side of the 48V supply; fuse rated for 8A max for all conditions. 2. 50-100% load; 40°C baseplate. Input Characteristics Baseplate Temperatures from 0°C to +100°C. Parameter Name Test Condition Var Input Voltage Requirement Typ Max Unit Symbol Min VI 36 72 V Input Low Line Power On V VIon Module Power On 30 35 V Input Low Line Power Off V VIoff Module Shutdown 80 90 %VIon VI=VInom – 2.0 W 100 – µF No Load Input Power PIL Input Capacitor rated 80V min (external to the converter) Input Current 1.5V II VI = 36V, IO = 24A, VO = 1.5V – 1.5 A 2.2V II VI = 36V, IO = 24A, VO = 2.2V – 2.1 A 3.3V II VI = 36V, IO = 24A, VO = 3.3V – 3.0 A 5.0V II VI = 36V, IO = 16A, VO = 5.0V – 3.0 A – 0.5 A2s Inrush Transient Efficiency 1.5V VO = VO nom , IO = IO rated, VI=VInom 68 70 – % 2.2V 72 74 – % 3.3V 78 80 – % 5.0V 82 84 – % Reflected Input Ripple VI = 48V, IO = 24A – 2.5 Ap-p Maximum Losses at 1.5V Pd VI = 48V, VO = VOnom – 17.0 W Local Sense 2.2V Pd IO = IOmax rated, TCase= 70°C – 20.6 W 3.3V Pd – 22.4 W 5.0V Pd – 17.6 W Polaris Series, Page 2 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0 Specifications Output Characteristics Over the complete baseplate temperatures and input voltage ranges. Parameter Name Output Voltage (nominal) Rated Output Current Initial Output Voltage Tolerance (with remote sense) Noise and Ripple Static Load and Line Regulation Long Term Temperature Drift Output Voltage Trim Output Voltage Trim Polaris Series, Page 3 Test Condition Requirement Typ Max Unit Var Symbol Min 1.5V 2.2V 3.3V 5.0V 1.5V 2.2V 3.3V 5.0V VOnom VOnom VOnom VOnom IO IO IO IO – – – – 0 0 0 0 -1.25 1.5 2.2 3.3 5.0 – – – – – – – – – 25 25 25 20 1.25 V V V V A A A A %VOnom – – – – – – 75 75 100 100 0.25 mVP-P mVP-P mVP-P mVP-P %VOnom -0.5 1.683 1.336 2.287 1.683 3.430 3.103 5.197 4.703 1.683 1.336 2.287 1.683 3.430 3.103 5.197 4.703 – – – – – – – – – – – – – – – – – 0.5 1.717 1.363 2.333 1.717 3.500 3.166 5.303 4.798 1.717 1.363 2.333 1.717 3.500 3.166 5.303 4.798 %V V V V V V V V V V V V V V V V V 1.5V 2.2V 3.3V 5.0V VO = VOnom VO = VOnom VO = VOnom VO = VOnom Vadj = open, TC = +25°C VI = VInom, IO = IOrated 20MHzP-P bandwidth, VI=36-72V, IO = 0 amps to 100% VI=36-72V, IO = 0.2amps to 100% 1.5V VOtrim 2.2V VOtrim 3.3V VOtrim 5.0V VOtrim 1.5V VOtrim 2.2V VOtrim 3.3V VOtrim 5.0V VOtrim VIN = 48V VO = VOnom IO = 50% of IOmax Rtrim=13200 Rtrim=42200 Rtrim=140768 Rtrim=8250 Rtrim=41905 Rtrim=122825 Rtrim=118000 Rtrim=105511 Vtrim=1.404 Vtrim=0.700 Vtrim=1.149 Vtrim=0.313 Vtrim=2.808 Vtrim=2.156 Vtrim=2.869 Vtrim=2.130 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0 Specifications Output Characteristics (continued) Over the complete baseplate temperatures and input voltage ranges. Airflow adjusted at 500LFM with 0.9" high heatsink. Parameter Name Total Remote Sense Compensation (round trip) Output Overvoltage Protection (Latching) Test Condition Var Short Circuit Current Transient Response, Vo Deviation from Steady State Settling Time (to ±1%) Turn On Time Turn on Ramp Time Turn Off Time (to 10% initial value) External Load Capacitance Over Temperature Shutdown (Latching) Isolation Resistance (1500VDC) Input-Output Min VI = VImin, IO = IOmax rated 1.5V 2.2V 3.3V 5.0V Output Voltage Protection Response Time Current Limit (nominal) Symbol 1.5V 2.2V 3.3V 5.0V 1.5V TOVP VO = VOnom, IO = IOrated IOlim IOlim IOlim IOlim VO = VOnom, VI = 48V VO = 0.2 to 0.4V, VI = 72V Io = 25–75% Imax @ 0.1A/µsec (di/dt), positive or negative step1 ton tramp toff VImin to VImax VImin to VImax, 10-90% rise time VImin to VImax ESR@10,000µf = 2mΩ TBASEPLATE Requirement Typ Max Unit – – 100 mV 2.00 2.64 3.96 6.00 – – – – – – 2.30 2.86 4.29 6.50 150 V V V V µs 27 27 27 22 – – – – – – – – – – – – 38 150 A A A A A mV – 1 1 – – – – – 250 20 10 1.0 µs ms ms ms 100 – – 10,000 125 µf °C 10 – MΩ Notes: 1. 940µf (2, 470µF tantalum capacitor) solid tantalum capacitor placed across output. Polaris Series, Page 4 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0 Specifications Control Signal Characteristics Parameter Name Test Condition Requirement Min Max Unit Module Enabled Module Disabled Source Current (VENABLE = 0.8V) Module Enabled Module Disabled Source Current (RENABLE = 100Ω) 0 2.5 – – 200K – V V mA Ω KΩ mA Symbol P_Enable_L and S_Enable_L Function Controls P_Enable_L and S_Enable_L Function Controls VENABLE LOW VENABLE HIGH IENABLE LOW RENABLE LOW RENABLE LOW IENABLE LOW 0.8 6.0 -1.0 100 – -0.5 Enable Controls Primary Enable_L Secondary Enable_L Output Voltage Low High or Open Low High or Open Low Low High or Open High or Open On Off Off Off Output Load Conditions (Turn On) Enable Circuit Turn on Time On >3V Off ≤0.6V To VENABLE Pin 220K IN4148 1M 2N7000 or Equivalent .22µF Tantalum To (–) Turn on Time 3V Output Voltage Turn off Time Turn off Time for VENABLE going High Turn on Time for VENABLE going Low VENABLE 2.5V 0.8V Time VENABLE Time Regulation Band 90% of Initial Input Current VOUT Time Input Current Time TON TOFF Polaris Series, Page 5 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0 Application Notes Signal Characteristics: Per table on page 5. For the GPP5V0-15 and GPP5V0-20, the trim voltage for these two units is: Input Signals: Enable_L: This unit has both primary and secondary output enable: Primary Enable_L: This input signal is used to enable the output of the converter when activated (active Low). The signal is referenced to the input side (-Vin pin 11). Secondary Enable_L: This input signal is used to enable the output of the converter when activated (active Low). The signal is referenced to the output side (-Sense). Primary Enable_L Secondary Enable_L Output Voltage Low High or Open Low High or Open Low Low High or Open High or Open On Off Off Off Output Voltage Adjust: The output voltage of the converter can be adjusted above or below the nominal output voltage as specified in the Output Characteristics Table. The range of adjustment above the nominal output voltage is limited by the internal overvoltage trip point settings. The overvoltage trip point settings do not change with output voltage adjustments. Output Voltage Turn On Time: The external circuit used to turn on the converter's "enable circuit" is per the Figure on page 5. Voltage Programming: A voltage may be applied between the “Trim” pin (pin 4) and the “– Sense“ pin (pin 1) to adjust the output voltage up or down from the nominal output. Vo is the desired output voltage. For the GPP1V5-15 and GPP1V5-25, the trim voltage for these two units is: 90.5 12.1 VTRIM = ——— * VO – —— Volts 44.97 6 For the GPP2V2-15 and GPP2V2-25, the trim voltage for these two units is: 11.4935 12.1 VTRIM = ———— * VO – —— Volts 8.3862 6 For the GPP3V3-15 and GPP3V3-25, the trim voltage for these two units is: 4.067 12.1 VTRIM = ——— * VO – —— Volts 2.06 3 1.829 * Vo - 6.05 ———————— Volts 1.238 Resistor Programming: Output voltage may be adjusted down from the nominal output voltage with a resistor connected between the “Trim” pin (pin 4) and the “-Sense” pin (pin 1). For the GPP1V5-15 and GPP1V5-25, the trim resistor, Rtrim for these two units is: RTRIM = Enable Controls Polaris Series, Page 6 VTRIM = (18. 1379 – 18.100 * VO) —————————— Kohms VO – 1.499 For the GPP2V2-15 and GPP2V2-25, the trim resistor, Rtrim for these two units is: 169.1217 – 114.935 * VO RTRIM = ——————————— Kohms 6.35 * VO – 13.977 For the GPP3V3-15 and GPP3V3-25, the trim resistor, Rtrim for these two units is: 2 (249.26 –122.01 * VO) RTRIM = —— * —————————— Kohms 5 2.49 *Vo – 8.24 For the GPP5V0-15 and GPP5V0-20, the trim resistor, Rtrim for these two units is: RTRIM = 18.29 * Vo – 60.50 ———————— Kohms 5 – VO Output voltage may be adjusted up from the nominal output voltage with a resistor connected between the “Trim” pin (pin 4) and the “+ Sense” pin (pin 2). For the GPP1V5-15 and GPP1V5-25, the trim resistor, Rtrim for these two units is: (18.1379 – 9.106 * Vo) VO – 1.499 RTRIM = ——————————— Kohms For the GPP2V2-15 and GPP2V2-25, the trim resistor, Rtrim for these two units is: 169.1217 – 31.073 * VO 6.35 * VO – 13.977 RTRIM = ——————————— Kohms For the GPP3V3-15 and GPP3V3-25, the trim resistor, Rtrim for these two units is: 2 (249.26 –60.21 * VO) RTRIM = —— * —————————— Kohms 5 2.49 *VO – 8.24 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0 Application Notes For the GPP5V0-15 and GPP5V0-20, the trim resistor, Rtrim for these two units is: 60.50 – 5.91 * Vo VO – 5 RTRIM = —————————— Kohms Thermal Considerations: Thermal considerations are an important factor in the reliable operation of the converter. The maximum operating baseplate temperature is 100°C. The maximum recommended operating baseplate temperature is 90°C. The baseplate temperature is a function of the losses within the converter, the converter ambient temperature, and airflow across the heat sink. The reference baseplate temperature is measured at the center coordinates of the baseplate. The baseplate temperature can be approximated by the following equation: 1- η η Overcurrent Protection: The converter shall survive any overload condition indefinitely including short circuit. The values of current limit and short circuit shall be per the Output Characteristics Table. Overvoltage Protection: The converter shall be protected against any overvoltage across Vout pins by shutting down the output at the values specified in the Output Characterisitics Table. This is a latched condition and either the input voltage has to be recycled or the primary enable signal (P_ENABLE_L) has to be recycled to reset normal operation. Recommended Input Filter, Fuse and Case Connections: A fuse is required in series with the plus or minus side of the 48V input to meet safety requirements. The following input filter circuit is recommended for all applications. The fuse should be inserted between the capacitors and the plus or minus input of the converter. The case should be connected to the output return. TBASEPLATE = POUTPUT * —— * RBASEPLATE-AMBIENT + TAMBIENT Where: TBASEPLATE Tambient η 48V is the temperature of the baseplate. is the local ambient temperature around the converter is the efficiency of the converter (see Table on page 5) Rbaseplate-ambient is the thermal resistance from the baseplate to the ambient environment. This is a function of the heat sink and air velocity. 1 In (+) ° C1 270µF 63V 48V RTN 4 80 UH + C2 1µF 100V ° 3 In (–) F1 In (+) + Input – In (–) DC/DC Converter + Output P Enable C3 1µF 100V Thermal Shutdown: The converter shall shutdown under a thermal overload. This is a latched condition and either the input voltage has to be recycled or the primary enable signal (P_ENABLE_L) has to be recycled to reset normal operation. Polaris Series, Page 7 L1 2 WWW.GALAXYPWR.COM C4 1µF 100V Case RLOAD – L1 Common Mode Inductor C1 270µF, 63V Aluminum Electrolytic Capacitor C2-C4 1µF, 100V Ceramic capacitor Part No. 99–003 Rev. 1.0 PACKAGE DETAIL Pin Assignments Pin No. Heatsink Profile 1 2 3 .500±.010 Side View .240 .200 .040 pins 4plcs 4 5 6 7 8 9 10 2.400 ±.010 .200 .150 1.300 .900 .450 .300 MAX .225 .200 .100 .100 9 10 11 12 5 7 1 6 2 8 .025 sq pin .100 grid, 6 plcs .025 .175 .150 .060 pins 2plcs .400 .250 M3X 0.5 4plcs 11 12 2.050 2.100 Designation Pin Size (inch) Tolerance (inch) -Sense +Sense S_Enable_L (Secondary Enable) Trim NC NC -Vout +Vout Case P_Enable_L (Primary Enable) -Vin +Vin 0.025 Sq 0.025 Sq ±0.001 ±0.001 0.025 Sq 0.025 Sq 0.025 Sq 0.025 Sq 0.060 0.060 0.040 ±0.001 ±0.001 ±0.001 ±0.001 ±0.002 ±0.002 ±0.002 0.040 0.040 0.040 ±0.002 ±0.002 ±0.002 Output Voltage Max Current Efficiency (Typ) 2.2V 2.2V 1.5V 1.5V 25 A 15 A 25 A 15 A 73% 75% 70% 71% Bottom View ORDERING INFORMATION Model Number GPP5V0-20 GPP5V0-15 GPP3V3-25 GPP3V3-15 Output Voltage Max Current Efficiency (Typ) 5.0V 5.0V 3.3V 3.3V 20 A 15 A 25 A 15 A 84% 85% 80% 82% Model Number GPP2V2-25 GPP2V2-15 GPP1V5-25 GPP1V5-15 * Heatsinks required: available on request. 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. 155 Flanders Road Westborough, MA 01581 508–870–9775 Fax: 508–870–9796 e–mail: [email protected] website: http://www.galaxypwr.com © Copyright 2000 Galaxy Power. Specifications subject to change without notice. Polaris Series, Page 8 WWW.GALAXYPWR.COM Part No. 99–003 Rev. 1.0