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75 to 200 Watt DC-DC Converters

Up to 100 Watts

Ultra-wide Input Range


OFQC100 Series DC-DC Converters

Polytron Devices’ OFQC100 Series of isolated 100-Watt DC-DC converters come in a quarter-brick package and are available in two ultra-wide 12:1 input ranges of 9-75V and 14-160V DC tohandle a variety of railway power systems. The series offers high efficiency up to 90 percent, nominimum load requirement, low standby power and remote ON/OFF control for energy savings. The units offer 3000V AC reinforced insulation and 2250V DC basic insulation. OFQC100 DC-DC converters meet the IEC/UL/EN62368-1 standard as well as EN50155 and EN45545-2 standards for railway applications. Built-in safeguards include over temperature, overcurrent, overvoltage, short circuit and undervoltage protections. A six-sided continuous shield minimizes noise leakage. The units comply with RoHS and REACH, and they carry the CE Mark.

OFQC100-72S5

 

INPUT

  • Operating input voltage range, Vdc
    • 9 Min., 36 Typ., 75 Max.; 36Vin(nom)
    • 14 Min., 72 Typ., 160 Max.; 72Vin(nom)
  • Start up voltage, Vdc
    • 9 Max.; 36Vin(nom)
    • 14 Max.; 72Vin(nom)
  • Shutdown voltage, Vdc
    • 7.3 Min., 7.7 Typ., 8.1 Max.; 36Vin(nom)
    • 10 Min., 11 Typ., 12 Max.; 72Vin(nom)
  • Start up time, ms
    • 75 Typ., 100 Max.; Constant resistive load, Power up
    • 75 Typ., 100 Max.; Remote ON/OFF
  • Input transient voltage, Vdc
    • 8.1 Max.; 36Vin(nom), 100 mS, Max.
    • 12 Max.; 72Vin(nom)
  • Input surge voltage, Vdc
    • 100 Max.; 36Vin(nom), 1 second, Max.
    • 185 Max.; 72Vin(nom)
  • Input filter: Pi type
  • Remote ON/OFF Control, Vdc
    • Referred to -Vin pin
    • Short or 0 - 1.2; Negative logic DC-DC ON
    • Open or 3 - 12; (Standard) DC-DC OFF
    • Open or 3 - 12; Positive logic DC-DC ON
    • Short or 0 - 1.2; (Option) DC-DC OFF
    • -0.5 Min., 1 Max., mA; Input current of Ctrl pin
    • 3 Typ., mA; Remote off input current

OUTPUT

  • Voltage accuracy, %: -1 Min., 1 Max.
  • Line regulation, %
    • -0.1 Min., 0.1 Max.; Low line to high line at full load
  • Load regulation, %
    • -0.1 Min., 0.1 Max.; No load to full load
  • Voltage adjustability, %
    • -20 Min., 10 Max.; Max. output deviation is inclusive of remote sense
  • Remote sense, %
    • 10 Max.; % of Vout(nom). If remote sense is not being used, SENSE pins should connect to corresponding polrity OUTPUT pins.
  • Ripple and noise, mVp-p
    • 20MHz bandwidth
    • 75 Typ.; 5Vout, with a 1μF/25V X7R MLCC and a 22μF/25V POS-CAP
    • 100 Typ.; 12Vout, 15Vout, with a 22μF/25V X7R MLCC
    • 200 Typ.; 24Vout, 28 Vout, with a 4.7μF/50V X7R MLCC
    • 300 Typ.; 48Vout, 53 Vout, with a 2.2μF/100V X7R MLCC
  • Temperature coefficient, %/°C: -0.02 Min., 0.02 Max.
  • Transient response recovery time, μs
    • 250 Typ.; 25% load step change
  • Over voltage protection, Vdc
    • 120 Min., 135 Max.; % of Vout(nom); Hiccup mode
  • Over load protection, %
    • 110 Min., 130 Max.; % of lout rated; Hiccup mode
  • Short circuit protection: Continuous, automatic recovery

GENERAL

  • Isolation voltage
    • 1 minute, 72Vin(nom); Input to output; 3,000 Min. Vac
    • (Reinforced insulation); Input (output) to Base-Plate; 1,500 Min. Vac
    • 1 minute, 36Vin(nom); Input to output; 2,250 Min., Vdc
    • (Basic insulation); Input (output) to Base-Plate; 1,600 Min., Vdc
  • Isolation resistance, GΩ: 500Vdc; 1 Min.
  • Isolation capacitance, pF: 1,000 Max.
  • Switching frequency, kHz: 160 Min.; 180 Typ.; 200 Max.

ENVIRONMENTAL

  • Operating base-plate temperature, °C: With derating; -40 Min.; 105 Max.
  • Max. case temperature, °C: 105 Max.
  • Over temperature protection, °C: 110 Typ.
  • Storage temperature range, °C: -55 Min.; 125 Max.
  • Thermal impedance, °C/W
    • Module without assembly option; 8.3 Typ.
    • Only mount on the iron base-plate; 2.5 Typ.
    • Heat-sink type with 0.24” height; 7.4 Typ.
    • Heat-sink type with 0.5” height; 6.2 Typ.
    • Heat-sink type with 0.65” height; 4.4 Typ.
    • Heat-sink type with 1” height; 3.6 Typ.
  • Thermal shock: MIL-STD-810F
  • Shock: EN61373, MIL-STD-810F
  • Vibration: EN61373, MIL-STD-810F
  • Relative humidity: 5% to 95% RH

PHYSICAL

  • Design meet safety standard: IEC/UL/EN6236801, EN50155, EN45545-2
  • Case material: Aluminum base-plate with plastic case
  • Potting material: Silicone (UL94 V-0)
  • Weight, g: 64g (2.26oz)
  • Dimensions: 2.28” × 1.45” × 0.50” (57.9mm × 36.8mm × 12.7mm)
  • MTBF: 4.208 × 105 hrs , MIL-HDBK-217F, Full load

EMC SPECIFICATIONS

  • EMI
    • Conditions: EN55032, EN50121-3-2; With external components. Level: Class A, Class B
  • EMS
    • Conditions: EN55024, EN50121-3-2
  • ESD
    • Conditions: EN61000-4-2; Air ±8kV and Contact ±6kV. Level: Perf. Criteria A
  • Radiated immunity
    • Conditions: EN61000-4-3; 20V/m. Level: Perf. Criteria A
  • Fast transient
    • Conditions: EN61000-4-4; ±2KV. Level: Perf. Criteria A
    • Conditions: OFQC60-36S; With 2pcs of aluminum electrolytic capacitor
    • Conditions: OFQC60-72S; With 2pcs of aluminum electrolytic capacitor
  • Surge
    • Conditions: EN61000-4-5; EN55024: ±1kV and EN50155:±2kV. Level: Perf. Criteria A
    • Conditions: OFQC60-36S; With 2pcs of aluminum electrolytic capacitor.
    • Conditions: OFQC60-72S; With 2pcs of aluminum electrolytic capacitor.
  • Conducted immunity
    • Conditions: EN61000-4-6; 10 Vr.m.s. Level: Perf. Criteria A
  • Power frequency magnetic field
    • Conditions: EN61000-4-8; 100 A/m continuous; 1,000 A/m 1 second. Level: Perf. Criteria A
Input Range
Vdc
Output Voltage
Vdc
Output Current at Full Load
A
Input Current at No Load
mA
Efficiency
%
Model Number Maximum Capacitor Load
μF
9 - 75 5 20.0 20 88 OFQC100-36S5 46,000
9 - 75 12 8.35 30 88 OFQC100-36S12 7,000
9 - 75 15 6.7 30 89 OFQC100-36S15 4,500
9 - 75 24 4.2 20 88 OFQC100-36S24 1,800
9 - 75 28 3.6 20 88 OFQC100-36S28 1,300
9 - 75 48 2.1 20 90 OFQC100-36S48 430
9 - 75 53 1.92 20 90 OFQC100-36S53 370
14 - 160 5 20.0 15 88 OFQC100-72S5 40,000
14 - 160 12 8.35 20 88 OFQC100-72S12 7,000
14 - 160 15 6.7 20 88 OFQC100-72S15 4,500
14 - 160 24 4.2 15 88 OFQC100-72S24 1,800
14 - 160 28 3.6 15 88 OFQC100-72S28 1,300
14 - 160 48 2.1 15 89 OFQC100-72S48 430
14 - 160 53 1.92 15 89 OFQC100-72S53 370