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150 Watt

2:1 Ultra Wide Input Range

DC-DC converters in Compact 2.28” × 1.45” × 0.50” Quarter Brick Package

Ideal for industrial applications, our 150 watt quarter brick DC-DC converter features high efficiency up to 92%, 2250 Vdc input to output basic insulation and no minimum load requirement. This series is RoHS II and Reach-compliant and meets UL60950-1, EN60950-1 and IEC60950-1 safety standards.

QA150

INPUT

  • Voltage Range
    • 12 Vdc nominal input: 8.5 to 22 Vdc
    • 24 Vdc nominal input: 16.5 to 36 Vdc
    • 48 Vdc nominal input: 33 to 75 Vdc
  • Start up voltage
    • 12 Vdc nominal input: 9 Vdc
    • 24 Vdc nominal input: 18 Vdc
    • 48 Vdc nominal input: 36 Vdc
  • Shutdown voltage
    • 12 Vdc nominal input: 7.3 to 8.1 Vdc
    • 24 Vdc nominal input: 15.5 to 16.3 Vdc
    • 48 Vdc nominal input: 31.6 to 32.5 Vdc
  • Start up time
    • Constant resistive load, power up: 75 to 100 mS
    • Constant resistive load, remote ON/OFF: 75 to 100 mS
  • Input surge voltage
    • 12 Vdc nominal input (1 sec.): 30 Vdc
    • 24 Vdc nominal input (1 sec.): 50 Vdc
    • 48 Vdc nominal input (1 sec.): 100 Vdc
  • Input filter: pi type
  • Remote ON/OFF (Referenced to -Vin pin)
    • Negative logic, DC-DC ON: Short or 0 - 1.2 Vdc
    • (Standard), DC-DC OFF: Open or 3 - 12 Vdc
    • Positive logic, DC-DC ON: Open or 3 - 12 Vdc
    • (Option), DC-DC OFF: Short or 0 - 1.2 Vdc
  • Input current of control pin: -0.5 to 1 mA
  • Remote off input current: 3 mA

OUTPUT

  • Voltage accuracy: ±1
  • Line regulation
    • Low line to high line at full load: ±0.1%
  • Load regulation
    • No load to full load, 3.3 and 5 Vout: ±0.2%
    • No load to full load, others: ±0.1%
  • Voltage and adjustability: -20 to 10%
  • Remote sense: 10%
  • Ripple and noise (measured by 20 mHZ bandwidth)
    • With a 22µF/25V X7R MLCC
      • 3.3 and 5 Vout: 75 mVp-p
      • 12 and 15 Vout: 100 mVp-p
    • With a 4.7µF/50V X7R MLCC
      • 24 and 30 Vout: 200 mVp-p
    • With a 2.2µF/100V X7R MLCC
      • 48 Vout: 300 mVp-p
  • Temperature coefficient: ±0.02%/°C
  • Transient response recovery time
    • 25% load step change: 250µS
  • Over voltage protection: 115 to 130%
  • Over load protection: 110 to 140%
  • Short circuit protection: continuous automatic recovery

GENERAL

  • Isolation voltage
    • Input to output: 2250 Vdc
    • Input to baseplate: 2250 Vdc
  • Isolation resistance: 500 Vdc, 1 Min.
  • Isolation capacitance: 1500 pF
  • Switching frequency: 270 to 330 kHz

ENVIRONMENTAL

  • Operating case temperature: -40 to 105°C
  • Over temperature protection: 110°C
  • Storage temperature range: -55 to 125°C
  • Thermal impedance
    • Without heat-sink: 9°C/W
    • Mount on 2U iron baseplate: 2.8°C/W
    • With 0.24" height heat sink: 7.1
    • With 0.5" height heat sink: 5.5
  • Thermal shock: MIL-STD-810F
  • Vibration: MIL-STD-810F
  • Relative humidity: 5 to 95%

PHYSICAL

  • Safety standards: UL60950-1, EN60950-1 and IEC60950-1
  • Case material: Aluminum baseplate with plastic case
  • Potting material: Silicone (UL94 V-0)
  • Weight 64 g. (2.26 oz.)
  • MTBF: 3.873 x 105 hours, MIL-HDBK-217F, full load

EMC CHARACTERISTICS

  • EMI
    • EN55022
    • Class A, Class B
  • ESD
    • EN61000-4-2
    • Air: ±8kV
    • Contact: ±6kV
  • Radiated immunity
    • EN61000-4-3
    • 20 V/m
    • Perf. Criteria A
  • Fast transient
    • EN61000-4-4
    • ±2kV
    • Perf. Criteria A
  • Surge
    • EN61000-4-5
      • EN55024
      • ±2kV
      • Perf. Criteria A
  • Conducted immunity
    • EN61000-4-6
    • 10 Vr.m.s
    • Perf. Criteria A
  • Power frequency magnetive field
    • EN61000-4-8
    • 100A/m continuous; 1000A/m 1 second
    • Perf. Criteria A
Input Voltage
Range
(Vdc)		Output Voltage
(Vdc)		Output Current
Full Load (A)		Input Current

No load (mA)		Efficiency
(%)		Model NumberMax. Capacitor
Load µF
8.5 - 22 3.3 30 50 89 QA150-12S33 91000
5 24 50 90 QA150-12S5 48000
12 10 50 91 QA150-12S12 8300
15 8 50 91 QA150-12S15 5300
24 5 50 90 QA150-12S24 2100
30 4 50 90 QA150-12S30 1300
48 2.5 50 89 QA150-12S48 520
16.5 - 36 3.3 30 25 89 QA150-24S33 91000
5 24 25 90 QA150-24S5 48000
12 10 25 91 QA150-24S12 8300
15 8 25 91 QA150-24S15 5300
24 5 25 91 QA150-24S24 2100
30 4 25 91 QA150-24S30 1300
48 2.5 25 89 QA150-24S48 520
33 - 75 3.3 30 15 89 QA150-48S33 91000
5 25 15 91 QA150-48S5 50000
12 12 15 90 QA150-48S12 10000
15 10 15 90 QA150-48S15 6670
24 6 15 92 QA150-48S24 2500
30 5 15 91 QA150-48S30 1670
48 3 15 92 QA150-48S48 630