GPEV6-3V3-40

Gemini Series DC/DC Converter Powers ≥600MHz Microprocessors The Gemini Series is a high current three quarter brick DC/DC converter with: 1.5 to 2.5 Volt, 55 Amp Output 3.3 or 5V Input Option No Heat Sinking Required 4 Pin Programmable Output Voltage 87% Efficient: 3.3Vin and 2.5Vout @ 40A 84% Efficient: 5Vin and 2.5Vout @ 55A 137.5 Watts @ 100° Baseplate 33 Watts/cu. inch 2.3" x 3" x 0.6" Fixed Frequency Operation Automatic OVP Tracking to Voltage Trim Current Limiting with Auto–Recovery Power Good Signal 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% Total Regulation: ±5% Noise & Ripple: 100 mVp–p Output Trim Gemini Series, Page 1 WWW.GALAXYPWR.COM Part No. 98–004 Rev. 1.0 Specifications General Specifications Operating Temperature Storage Temperature Relative Humidity Vibration Weight 0°C to +45°C (@200LFM) –20°C to +100°C 10% to 95% RH, Non–condensing 10–500Hz 0.75g peak 75gm, typical (GPEV6–3V3–40) 200gm, typical (–S, –L) UL94V–0 1.2million hours* MIL–HDBK–217 Material Flammability MTBF * Note: 50% load; 200LFM, 45°C ambient Input Characteristics Operating Air Temperatures from 0°C to +45°C with 200 LFM, D0, D1, D2, D3 pins low state unless otherwise specified. Parameter Name Test Condition Var Symbol Requirement Min Max Unit Input Voltage Input Low Line Power-On V No Load Input Power Input Capacitor (external to the converter) Input Current Efficiency (with Local Sense) Reflected Input Ripple 3V3–40 –S, –L VI VI VIon PIL IO = 40A IO = 55A Module Power On VI =VInom 20 (330µF) 12 (330µF) 3.37 4.5 – – 6600 3900 – – 83 79 – 3.8 5.25 3.35 6 – – 35.2 35 – – 6.0 V V V W µF µF A A % % A P–P 3V3–40 –S, –L 3V3–40 –S, –L 3V3–40 –S, –L 3V3–40 II II N N dII VI = 3.43V, IO = 40A, VO = 2.5V VI = 5V, IO = 55A, VO = 2.5V VI = 3.43V, IO = 40A, VO = 2.5V VI = 5V, IO = 55A, VO = 2.5V VI = 3.43V, IO = 40A, (Note 1) CIN = 20 (330µF Tantalum) ESR = 60 mΩ –S, – L dII VI = 5V, IO = 55A, (Note 1) CIN = 12 (330µF Tantalum) ESR = 60 mΩ – 11.0 AP–P Switching Frequency FS 250 Typ KHz Note 1: Measure input reflected current which is drawn from input capacitor CIN by converter. Place 3" loop between CIN and VIN of the converter. Gemini Series, Page 2 WWW.GALAXYPWR.COM Part No. 98–004 Rev. 1.0 Specifications Output Characteristics Over the complete baseplate temperatures and input voltage ranges, D0, D1, D2, D3 pins low state unless otherwise specified. Parameter Name Test Condition Var Symbol Min Requirement Typ Max Unit Output Voltage Set Point Rated Output Current Line & Load Regulation Noise and Ripple 3V3–40 –S, –L 3V3–40 –S, –L 3V3–40 –S, –L 3V3–40 –S, –L VOnom VOnom IO IO Total Regulation (Load, Line, Short term and Long term Dynamic Temp Drift) Remote Sense Compensation Round Trip Static Output Overvoltage Protection (Nom) Latching Output Voltage Protection Response Time Current Limit (Nom) Short Circuit Current Over–temperature Shutdown (Tbaseplate) Load Transient Response, VO deviation from steady state (settling time to ±1%) 3V3–40 –S, –L VI = 3.43V, IO = 20A VI = 5.0V, IO = 30A VO = VOnom VO = VOnom VI = 3.37–3.8V, IO = 0–40A VI = 4.5–5.25V, IO = 0–55A VI = 3.43V, IO = 40A CO = 330µF, 0.47µF VI = 5.0V, IO = 55A CO = 330µF, 0.47µF VI = 3.37–3.8V, IO = 0–40A CO = 20 (470µF) VI = 4.5–5.25V, IO = 0–55A CO = 20 (470µF) VI = VI min, IO = full load VI = VI nom, IO = 5A 2.475 2.475 0 0 – – – – 2.375 2.375 – 107 – 42 57 – – – – 2.500 2.500 – – – – 100 100 2.500 2.500 – – – – – – – 110 – 2.525 V 2.525 V 40 A 55 A 12.5 mV 12.5 mV 120 mVP–P 120 2.625 2.625 100 120 50 – – 55 70 125 3 mVP–P V V mV %VO µS A A Arms Arms °C %VO tOVP 3V3–40 –S, –L 3V3–40 –S, –L IL IL ISC ISC VI = VI nom, IO = 5A VI = 3.43V, VO = 2.5V VI = 5.0V, VO = 2.5V VI = 3.43V, VO < 0.6V VI = 5.0V, VO < 0.6V VOPK Notes 1, 2, 3 Turn–on Time Turn–on Risetime (10–90%) Output Filter Capacitance Voltage Trim ton trise Cout Vtrim IO = 10–38A @ 28AµS (di/dt) VI = 3.3V(3V3-40) VI = 5.0V(–S, –L) VO = 2.5V pos. or neg. step CO = 28–470µF Cap (470µF, ESR=55mΩ) CIN=12–330µF Cap (330µF, ESR=60mΩ) VI =VImin to VImax, IO=0–40A (See figures on page 5) VI =5.0V, IO=IOmax VI =VInom, IO=IOmax/2 VO=2.5V, Short Pin 1 & 10 – – 1200 µS 20 8 330 94.5 – – 95.5 120 mS 30 mS 13,200 µF 96.5 %VOnom Notes: 1. The converter output voltage shall be stable when (13,200µF total) tantalum low ESR filter capacitors are connected across the output of the converter. 2. For 3.43 Input Voltage Rail having IOmax = 40A, the minimum input filter capacitor required is 6600µF (use multiple 330µF tantalum capacitor having 60mΩ ESR.) 3. For 5.00 Input Voltage Rail having IOmax = 55A, the minimum input filter capacitor required is 3960µF (use multiple 330µF tantalum capacitor having 60mΩ ESR.) Gemini Series, Page 3 WWW.GALAXYPWR.COM Part No. 98–004 Rev. 1.0 Specifications Output Voltage Adjustments Control Pin D3 D2 D1 D0 Output Voltage Tolerance ± 1.2% Volts DC 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1.429 1.500 1.571 1.643 1.714 1.786 1.857 1.929 2.000 2.071 2.143 2.214 2.286 2.357 2.429 2.500 Note: the converter shall be tested for four bits logic control. Control Signal Characteristics D0, D1, D2, D3 pins low state unless otherwise specified. Parameter Name Test Condition Symbol Min Requirement Typ Max Unit Enable_H* Enable_H Source Current Enable_H Voltage Low Enable_H Voltage High Enable_H High (Output Voltage) Powergood_H High Powergood_H Low Fault_H High Fault_H Low Fault_H Source Current * Use Open Collector Logic to control Enable function. VI = VInom, IO = 20A – – 4.5 2.475 3.3 – 4.0 – 1 – – – 2.500 – – – – – 1.0 0.8 5.2 2.525 – 0.8 5.1 0.8 – mA V V V V V V V mA VI = VInom, IO = 20A VS – 5.0V, RL = 4K VI = VInom RL = 4K TO –SENSE Gemini Series, Page 4 WWW.GALAXYPWR.COM Part No. 98–004 Rev. 1.0 Application Notes Control Signals Control Signal Characteristics: Per Table on Page 4. Enable_H: This input signal is used to enable the output of the converter when activated (active High). The signal is referenced to either the output side (-Sense) or GND. It has an internal pull-up resistor. To disable the converter requires an open collector logic signal to pull it down. 4 Bit Logic Signals: The state of the 4 bit control signals controls the output voltage. Normally, the 4 bits are in a ‘low state’ and provide for a 2.5V output voltage. The output voltage may be programmed between 1.429 to 2.5V by setting appropriate logic bits ‘high’ through D0, D1, D2, and D3. Powergood_H: The Powergood signal is in a ‘high’ state when the output voltage is within +/- 7.5% of the output voltage programmed by the 4 logic bit inputs. OVPFault_H: This signal is in a ‘high’ state when the output voltage is greater than +/-15% of the output voltage programmed by the 4 bit logic inputs or exceeds the maximum operating temperature of the converter. This output is the open emitter of a transistor which pulls to +5V in the high state and is open in the low state. For driving logic, an appropriate pull down resistor from OVPFault_H to – Sense is required. The OVPFault_H is asserted high when OVPFault is activated. When driving an SCR to ‘crowbar’ the input source from a Fault_H signal, use the circuit below: +5V 2N2222 Fault_H 100Ω SCR Trim: The output voltage may be lowered from the nominal programmed value by adding an external resistor from the TRIM pin (J1-10) to – Sense (J1-1). This is used to obtain output voltages between the programmed values. The maximum value the output may be trimmed is approximately –4.5% of Vprog. The resistor value may be calculated from the following formula: (2490) (Vtrim) Rext = ––––––––––––––––––– - 15000 (3.49) (Vprog – Vtrim) Vtrim = Desired output voltage with Rext tied from TRIM pin to – SENSE. Vprog = Nominal programmed output voltage Notes: 1. Vtrim must be less than Vprog. 2. The trim pin does not change the OVP or Powergood_H trip points. These are set by the 4 bit logic inputs Enable Circuit Turn On Time OFF >3V ON ≤0.6V 220K ON/OFF Gate Drive Voltage To VENABLE Pin 2N7000 or Equivalent To (–) Output Load Conditions (Turn On) 20 (330µF) C=6600µF 3.37-5.25V Input Output C=(20)470µF Tantalum Capacitors 9400µF + RLOAD=40A 1K 0.µ1F Turn On Time Falltime