PRM Regulator PRM48BH480T200B00 S C NRTL US High Efficiency Remote Sense PRM Converter FEATURES DESCRIPTION The VI Chip PRM Regulator is a high efficiency 45 V (38 to 55 V ), non-isolated ZVS buck-boost IN regulator converter, operating from a 38 to 55 Vdc input to generate a regulated 5 to 55 Vdc output. The ZVS Buck Boost 5 to 55 V adjustable output range topology enables high switching frequency (~1 MHz) Building block for high efficiency DC-DC systems 2 operation with high conversion efficiency. High switching 200 W Output Power in 0.57 in footprint frequency reduces the size of reactive components 97% typical efficiency, at full load 3 3 3 enabling power density up to 1,300 W/in . 1,300 W/in (81 W/cm ) Power Density Enables a 48 V to 1.5 V, 130 A isolated, regulated 2 2 The half VI Chip package is compatible with standard pick- solution with total footprint of 1.7 in (11 cm ) and-place and surface mount assembly processes with a Flexible Remote Sense architecture optimizes planar thermal interface area and superior thermal regulation / feedback loop design to fit application conductivity. requirements Current Feedback signal allows dynamic adjustment of In a Factorized Power Architecture system, the current limit setpoint PRM48BH480T200B00 and downstream VTM 4.93 MHrs MTBF (MIL-HDBK-217Plus Parts Count) transformer minimize distribution and conversion losses in a high power solution. TYPICAL APPLICATIONS An external control loop and current sensor maintain High Efficiency Server Processor and Memory Power regulation and enable flexibility both in the design of High Density ATE system DC-DC power voltage and current compensation loops to control of Telecom NPU and ASIC core power output voltages and currents. LED drivers High Density Power Supply DC-DC rail outputs Non-isolated power converters 48 V to 1.2 V, 130A Voltage Regulator Voltage Control Feedback Enable/ Voltage Disable Reference PC PR TM IM PC TM +IN +OUT +IN +OUT1 +OUT2 38 to 55 PRM VTM Vdc Input Load -IN -IN -OUT -OUT1 IF RE SG VC VC -OUT2 Current Sense PRM Regulator Rev 1.1 vicorpower.com Page 1 of 22 7/2015 800 927.9474 PRM48BH480T200B00 1.0 ABSOLUTE MAXIMUM RATINGS The ABSOLUTE MAXIMUM ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to device. Electrical specifications do not apply when operating beyond rated operating conditions. All voltages are specified relative to SG unless otherwise noted. Positive pin current represents current flowing out of the pin. Min Max Unit -0.3 10.5 V PR .. 10 mA -0.3 5.7 V PC .. 10 mA -0.3 5.7 V TM .. 1 mA -1 62 V +IN to IN -0.5 10.5 V VS .. 100 mA SG 100 mA -0.5 5.7 V IF RE -0.3 5 V -0.5 18 V VC to OUT .. 1.8 A +OUT to OUT -1 62 V Output Current 5.5 A Operating Analog IC Junction Temperature -40 125 C Storage Temperature -40 125 C 2.0 ELECTRICAL CHARACTERISTICS Specifications apply over all line and load conditions, T = 25 C and output voltage from 20 V to 55 V, unless otherwise J noted. Boldface specifications apply over the temperature range of -40 C < T < 125 C (T-grade). J Attribute Symbol Conditions / Notes Min Typ Max Unit POWER INPUT SPECIFICATION V Input Voltage range IN 38 45 55 V V Slew Rate dV /dt 0 < V < 18 V 0.001 1000 V/ms IN IN IN No Load Power Dissipation P PC High, V = 45 V 2.6 4 W NL IN I PC Low, V = 45 V Input Quiescent current QC IN 4.5 8.5 mA I I = 4.17 A, V = 38 V, V =48V Input Current IN DC OUT IN OUT 5.5 5.7 A C Effective value, V = 45 V (see Fig. 20) Input Capacitance (Internal) IN INT IN 2 F R Input Capacitance (Internal) ESR Cin 3 m POWER OUTPUT SPECIFICATION V Output Voltage range OUT 5 48 55 V Output Current I See Fig.16, SOA 4.17 A OUT P Output Power OUT See Fig.16, SOA 200 W T From PC pin release to V ,V pre-applied and T already expired ON OUT IN OFF 20 s Output Turn-ON Delay T + T From V applied to V , PC floating OFF ON IN OUT 18.02 ms Equal input, output and PR voltage at full load V =45V, V =48V,exclusiveofcurrent limit IN OUT 10 % Current Sharing accuracy I Equal input, output and PR voltage at full load OUT PS See sec 10.6 % Over line, trim, and temperature exclusive of current limit Nominal line, full load, V = 48V OUT 95.7 96.9 % Efficiency 50% load and V = 48 V over temperature OUT 94.5 % 50% load over temperature 88.5 % I Output Discharge current OD Section 4.0 0.5 mA Output Voltage Ripple V C = 0 F, I = 4.17 A, V =45V, V =48V, 20 MHz BW 1020 1500 mV OUT PP OUT EXT OUT IN OUT Output Inductance (Parasitic) L Frequency 1 MHz, Simulated J-Lead model 2.5 nH OUT PAR C Effective value, V = 48 V (see Fig. 20) Output Capacitance (Internal) OUT INT OUT 2 F R Output Capacitance (Internal) ESR Cout 3 m POWERTRAIN PROTECTIONS V Instantanous powertrain shutdown, latched after T Input Undervoltage Turn-ON IN UVLO+ BLANK 35.75 37.13 V V Input Undervoltage Turn-OFF IN UVLO- 31.97 33.56 V Input Overvoltage Turn-ON V Instantanous powertrain shutdown, latched after T 55.91 57.24 V IN OVLO+ BLANK Input Overvoltage Turn-OFF V 58.44 59.91 V IN OVLO- Overcurrent (IF) and Input s T 50 120 150 BLANK Over/Undervoltage Blanking Time V Output Overvoltage Threshold OUT OVLO+ Instantaneous, latched shutdown 55.25 56.57 59.04 V T Instantaneous, latched shutdown guaranteed by design, not production tested V =4.03V Thermal Shutdown Setpoint J OTP TM 130 C Overtemperature, Output Overvoltage T 2 s PROT and PC Shutdown Response Time V Short Circuit Vout Threshold SC VOUT 3.0 V V Short Circuit Vout Recovery Threshold SC VOUTR 4.0 V V Short Circuit Vpr Threshold SC VPR 7.2 V V Short Circuit Vpr Recovery Threshold SC VPRR 7.1 V Short Circuit Timeout T Short Circuit fault latched after V and V thresholds persist for this time 20 ms SC SC VOUT SC VPR Short Circuit Fault Recovery Time T 0.1 ms SCR P Output Power Limit PROT 200 W PRM Regulator Rev 1.1 vicorpower.com Page 2 of 22 7/2015 800 927.9474