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100 Watt

4:1 Ultra Wide Input Range


Half-brick for railway applications

Our 100 watt half brick DC-DC converter for railway applications features an adjustable output voltage, optional sync and a remote control. It also includes short circuit, over voltage and over temperature protection, as well as an optional terminal block and heat sink. This series also meets UL60950-1, EN60950-1 and EN50155 safety standards.

 

INPUT

  • Voltage Range
    • 24 Vdc nominal input, 3.3 and 5 Vout: 9 to 36 Vdc
    • Others: 8.5 to 36 Vdc
    • 48 Vdc nominal input: 16.5 to 75 Vdc
    • 110 Vdc nominal input: 43 to 160 Vdc
  • Start up voltage
    • 24 Vdc nominal input: 9 Vdc
    • 48 Vdc nominal input: 18 Vdc
    • 110 Vdc nominal input: 43 Vdc
  • Shutdown voltage
    • 24 Vdc nominal input: 7.3 to 8.1 Vdc
    • 48 Vdc nominal input: 15.5 to 16.3 Vdc
    • 110 Vdc nominal input: 33 to 36 Vdc
  • Start up time
    • Constant resistive load, power up: 75 mS
    • Remote ON/OFF: 75 mS
  • Input surge voltage
    • 1 sec., max. 24 Vdc nominal input: 50 Vdc
    • 48 Vdc nominal input: 100 Vdc
    • 110 Vdc nominal input: 185 Vdc
  • Input filter: Pi type
  • Remote ON/OFF
    • Negative logic (Standard)
      • DC-DC ON: Short or 0 to 1.2 Vdc
      • DC-DC OFF: Open or 3 to 12 Vdc
    • Positive logic (Option)
      • DC-DC ON: Open or 3 to 12 Vdc
      • DC-DC OFF: Short or 0 to 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: ±0.1%
  • Voltage and adjustability: -20 to 10%
  • Remote sense: 10%
  • Ripple and noise (measured by 20 MHz bandwidth)
    • With a 1μF/25V X7R MLCC and 22μF/25V POS-CAP
      • 3.3 and 5 Vout: 75 mVp-p
      • 12 and 15 Vout: 100 mVp-p
    • With a 4.7μF/25V X7R MLCC
      • 24 and 28 Vout: 200 mVp-p
    • With a 2.2μF/25V X7R MLCC
      • 48 Vout: 300 mVp-p
  • Temperature coefficient: ±0.02%/°C
  • Transient response recovery time
    • 25% load step change: 200 to 250μs
  • Over voltage protection: 115 to 130%
  • Short circuit protection: continuous, automatic recovery

GENERAL

  • Efficiency: 87 to 93%
  • Isolation voltage (reinforced insulation, 110 Vin(nom))
    • Input to output: 3000 Vac
    • Input to case: 1500 Vac
  • Isolation voltage (basic insulation)
    • Input to output: 2250 Vdc
    • Input to case: 1600 Vdc
  • Isolation resistance: 500 Vdc
  • Isolation capacitance: 2500 pF
  • Switching frequency
    • 24 and 48 Vdc nominal input: 225 to 275 kHz
    • 110 Vdc nominal input: 270 to 330 kHz

ENVIRONMENTAL

  • Operating case temperature
    • Baseplate: -40 to 105°C
  • Over temperature protection: 115°C
  • Storage temperature range
    • Terminal block type: -40 to 105°C
    • Others: -55 to 125°C
  • Thermal impedance
    • Module without assembly option: 6.7°C/W
    • Heat sink type with 0.24" height: 5.4°C/W
    • Heat sink type with 0.45" height: 4.7°C/W
  • Thermal shock: MIL-STD-810F
  • Shock: EN61373, MIL-STD-810F
  • Vibration: EN61373, MIL-STD-810F
  • Relative humidity: 5 to 95%

PHYSICAL

  • Meets safety standards: UL60950-1, EN60950-1, IEC 60950-1 and EN50155
  • Case material
    • 24 and 48 Vdc nominal input: Metal
    • 110 Vdc nominal input: Aluminum baseplate with plastic case
  • Base material
    • 24 and 48 Vdc nominal input: FR4 PCB
  • Potting material: silicone (UL94 V-0)
  • Weight: 105 g. (3.70 oz.)
  • MTBF: 4.087 x 105 hours, MIL-HDBK-217F, full load

EMC CHARACTERISTICS

  • EMI
    • EN55011: Class A
    • EN55022: 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
    • EN50155: ±2kV
  • Conducted immunity
    • EN61000-4-6: 10Vr.m.s (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
9 - 36  3.3 25 20 91 HWB100-24S3P3 75700
5 20 25 93 HWB100-24S05 40000
8.5 - 36     12 8.4 25 90 HWB100-24S12 7000
15 6.7 25 91 HWB100-24S15 4460
24 4.2 25 90 HWB100-24S24 1750
28 3.6 25 90 HWB100-24S28 1280
48 2.1 35 90 HWB100-24S48 430
16.5 - 75       3.3 25 15 91 HWB100-48S3P3 75700
5 20 15 93 HWB100-48S05 40000
12 8.4 20 90 HWB100-48S12 7000
15 6.7 20 91 HWB100-48S15 4460
24 4.2 20 90 HWB100-48S24 1750
28 3.6 20 92 HWB100-48S28 1280
48 2.1 25 91 HWB100-48S48 430
43 - 160       3.3 25 10 87 HWB100-110S3P3 75700
5 20 10 90 HWB100-110S05 40000
12 8.4 10 90 HWB100-110S12 7000
15 6.7 10 90 HWB100-110S15 4460
24 4.2 10 90 HWB100-110S24 1750
28 3.6 10 90 HWB100-110S28 1280
48 2.1 10 91 HWB100-110S48 430