DC-DC 365 Watts xppower.com DFA Series • U Channel and Hotswap DC-DC Converter • -48 VDC Input • DC Input version of MFA350 AC-DC Converter • -10 °C to + 70 °C Operation • Power Fail and DC OK Signals • High Power Density up to 11.1 W / in 3 • 5 V Standby and 12 V Fan Supply Outputs Specification Input Input Voltage Range Input Current Input Reverse Voltage Protection Undervoltage Lockout Protection General • 48 VDC nominal (36 - 75 VDC). Can be configured as -48 VDC input • 9.2 A typical, 12.5 A max • Continuous protection with automatic recovery • 32 - 36VDC Output Voltage Output Voltage Trim Minimum Load Line Regulation • • • • Load Regulation • Setpoint Accuracy • Turn-on Time Transient Response • • • Overvoltage Protection • Overcurrent Protection • Short Circuit Protection • Temperature Coefficient Switching Frequency Power Density • 85% typical • 1500 VDC Input to Output, 1000 VDC Input to Ground, 500 VDC Output to Ground. • 370 kHz typical • 11.1 W/In3 Environmental Output Ripple & Noise Efficiency Isolation Voltage • See table ±10% via potentiometer No minimum load required. ±0.5% of nominal with input variation of 36-75V DC ±1% of nominal with load variation 0-100% ±1% of nominal with 48 VDC input and 50% load 1 s typical from application of DC input <4% deviation with a 50-75-50% load change at 1 A/µs. Output returns to within 1% in less than 500 µs 1% max pk-pk 20 MHz bandwidth, 0.1 µF capacitor connected across measurement points 115-140% of nominal, recycle input DC to reset 105-115% of max current Continuous protection, trip and restart (Hiccup mode) characteristic 0.02%/°C (after 20 minute warm up) Operating Temperature • -10 °C to +50 °C with full load, derate linearly to 50% load at 70 °C forced cooled. Cooling • >20 CFM forced airflow required -H versions have integrated fan Operating Humidity • 0 to 95% RH non condensing. Storage Temperature • -40 °C to +80 °C. Storage Humidity • 0 to 95% RH non condensing. Operating Altitude • 3000m. Shock • ±3 shocks in each axis (total 18 shocks) 30 g 11ms (half sine). Vibration • 2 g, 10 - 500Hz 10 sweeps. EMC & Safety Emissions EFT/Burst Surge Conducted Immunity Safety Approvals • Compliant with EN61204-3 2000, EN55022 class A conducted & radiated • Compliant with EN61000-4-4 level 1 Perf Criteria A • EN61000-4-5 level 1 Perf Criteria A, • Compliant with EN61000-4-6 level 2 Perf Criteria A • UL60950-1 (2003), CE Marked to LVD Output Voltage V1 Max Output Current V1 Fan Output V2 Standby Supply V3 Max Power 20 CFM Airflow Model Number 12 VDC 29.0 A 12 V/1 A 5 V/1 A 365 W DFA35048S12 24 VDC 14.5 A 12 V/1 A 5 V/1 A 365 W DFA35048S24 Mechanical Details (U Channel) A A 8 X M3-0.5 MOUNTING THREAD 0.236(6.0) MAX SCREW PENETRATION TYP ON ALL SIDES OF POWER SUPPLY 6.80 (172.7) LOGIC CONNECTOR AIRFLOW VOLTAGE ADJUST VA (PRIMARY INPUT) V1 (+) DC OUTPUT INTERFACE CONNECTOR V1 (- ) 3.20 (81.3) + - 48 VDC INPUT BLOCK 12 VOLT FAN CONNECTOR 1.50 (38.1) 2 X 0.75 (19.1) A A 2 X 5.80 (147.3) 2 X 0.60 (15.2) 2 X 0.60 (15.2) A A A A 2 X 2.00 (50.8) 0.60 (15.2) 2 X 5.80 (147.3) Pin 1 2 3 4 5 6 7 8 9 10 Logic Connector Function DC IN OK Inhibit / Enable Not used DC OK Not used +Sense -Sense Not used 5 V Standby 5 V Standby Return Logic Connector: JST PN B10B-PHDSS(LF)(SN) Mating Plug: JST PN PHDR-10VS Contact, 26-22 AWG: JST PN SPHD-001T-P0.5 DC-DC DFA350 Models and Ratings DC-DC DFA350-H Models and Ratings Output Voltage V1 Maximum Output Current Standby Supply V3 Max Power Model Number 12.0 VDC 29.0 A 5 V/1 A 365 W DFA35048S12-H 24.0 VDC 14.5 A 5 V/1 A 365 W DFA35048S24-H Mechanical Details (-H Hotswap) OUTPUT CONNECTOR INPUT CONNECTOR INPUT & DC OUTPUT HEALTHY LED'S 0.125 (3.18) EJECTOR HANDLE 0.156 (3.96) EJECTOR PIN R0.225 (5.71) ROTATION RADIUS GUIDE PIN C/L 0.225 (5.72) 1.60 (40.6) 0.655 (16.65) 10.06 (255.52) 0.385 (9.78) 0.175 (4.45) 10.00 (254) CONNECTOR C/L 3.300 (83.82) MAX 1.636 (41.54) OUTPUT CONNECTOR PIN LOCATIONS P1 P2 P3 P4 1 2 3 A BC D MATING CONNECTOR FCI# 51762-10401200AA-LF Pin A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3 P1 P2 P3 P4 Pin Designator Function +Sense Not used DC OK -Sense Not used DC IN OK Not used Not used 5 V Standby Not used Inhibit / Enable 5 V Standby Return -V1 -V1 +V1 +V1 Output Connector FCI# 51722-10401200AA-LF INPUT CONNECTOR PIN LOCATIONS + + Ground PIN4 - - Ground PIN1 MATING CONNECTOR MOLEX# 39-01-2065 In order to ensure safe operation of the PSU in the end-use equipment, the temperature of the components listed in the table below must not be exceeded. See drawing on 2nd page of this datasheet for component locations. The temperature should be monitored using K type thermocouples placed on the hottest part of the component (out of any direct air flow). See longform datasheet for further information of service life. Temperature Measurements (Ambient ≤50 ºC) Component Max Temperature ºC L1 90 ºC Q1 105 ºC HS1 85 ºC C25 75 ºC Q2 105 °C Signals DFA350 & DFA350-H Input Fail POWER SUPPLY 5 V Standby Pin 9 or C3 Max 12 V 20 mA 330R AC OK Collector Pin 1 or B3 Transistor On (<0.8 V): AC NOT OK Transistor Off (>4.5 V): AC OK AC OK Emitter Pin 7 or B1 5 V Standby Return Pin 10 or D3 J3 Logic Connector DC OK POWER SUPPLY 5 V Standby Pin 9 or C3 Max 12 V 20 mA 330R DC OK Collector Pin 4 or A3 Transistor On (<0.8 V): DC NOT OK Transistor Off (>4.5 V): DC OK DC OK Emitter Pin 7 or B1 5 V Standby Return Pin 10 or D3 J3 Logic Connector See 2nd page of this datasheet Mechanical Details for location Remote On/Off (Inhibit/Enable) POWER SUPPLY Internal Vref JP1 Jumper (JP1) fitted (standard) Open or TTL high=PSU On Short circuit or TTL Low=PSU Off Jumper (JP1) removed Open or TTL high=PSU Off Short circuit or TTL Low=PSU On Pin 2 or D2 Pin 7 or B1 J3 Logic Connector 31-Oct-08 DC-DC DFA350 Thermal Considerations (U Channel)