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10 Watt

Single and Dual Output, 4:1 Wide Input Range, DIP Package

DC-DC Converters For Railway Applications

TWRB10 Series isolated 4:1 wide input range 10-watt single- and dual-output DC-DC converters are housed in a miniature 1.25” x 0.80” x 0.40” DIP package to fit tight spaces in railway applications. The series offers high efficiency up to 83 percent, 1500V DC isolation voltage, 100 percent burn-in for reliability and remote ON/OFF control for energy savings. These RoHS-compliant converters meet EN50155 Railway Standards and the UL 94V-0 flammability classification.

TWRB10Series

INPUT

  • Operating Voltage Range
    • 12Vin (nom): 9-36 Vdc
    • 24Vin (nom): 18-75 Vdc
    • 48Vin (nom): 40-160 Vdc
  • Start Up Voltage
    • 24Vin (nom): 9 Max. Vdc
    • 48Vin (nom): 18 Max. Vdc
  • Shutdown Voltage
    • 24Vin: 8.5 Max. Vdc
    • 48Vin: 17 Max. Vdc
  • Voltages types: 4:1
  • Start Up Time: Nominal Vin and constant resistive load, 450 Typ. Vdc
  • Input Surge Voltage
    • 24Vin, 100mS Max.: 50 Max. Vdc
    • 48Vin, 100mS Max.: 100 Max. Vdc
  • Input Reflected Ripple Current: 60mAp-p
  • Input Filter: Pi Network
  • Remote ON/OFF
    • ON, 2.3-5V
    • ON Current, 0.1mA
    • OFF, 0-2.1V
    • OFF Current, -0.102mA

OUTPUT

  • Voltage Tolerance: -2 Min., 2 Max. %
  • Line Regulation: -0.5 Min., 0.5 Max. %
  • Load Regulation
    • Single, -0.5 Min., 0.5 Max. %
    • Dual (balanced load): -0.5 Min., 0.5 Max. %
  • Cross Regulation: Dual (25% to 100% load): -0.5 Min., 0.5 Max. %
  • Ripple and noise
    • Output: 3-15V Types, BW=DC to 20MHz, 100 Max. mVp-p
    • Output > 15V Types, BW=DC to 20MHz, 1% of Vout
  • Temperature Coefficient: 0.01%/°C Max.
  • Transient Response setting time: 25% load step change, 350 Max. µS
  • Short circuit protection: Hiccup, automatic recovery

GENERAL SPECIFICATIONS

  • Isolation Voltage: 1500 Min. Vdc
  • Isolation resistance: 1000 Min. MΩ, 500Vdc
  • Isolation capacitance: 2000 pF, Max.
  • Switching Frequency: 400 Typ. KHz

ENVIRONMENTAL SPECIFICATIONS

  • Operating Temperature: With derating, -40 Min., 100 Max. ºC
  • Storage Temperature Range: -55 Min., 125 Max. °C
  • Humidity: 95 Max. %
  • Cooling: Free air convection

PHYSICAL SPECIFICATIONS

  • Design Meet Safety Standard: EN50155
  • Case Material: Nickel coated copper with non-conductive base
  • Weight: 17.5g (0.62oz)
  • Dimensions: 1.2” × 0.8” × 0.4”(31.6mm × 20.1mm × 10mm)
  • MTBF: 9×105 hrs, MIL-HDBK-217F at 25ºC

EMC SPECIFICATIONS

  • ESD: EN 61000-4-2, Air ±8kV, contact ±6kV, Perf. Criteria B
  • Fast Transient: EN 61000-4-4, ±2kV, Perf. Criteria B
  • Surge: EN61000-4-5, EN61000-4-5, Perf. Criteria A
Input Voltage
(Vdc)		Output Voltage
(Vdc)		Output Current at Full Load
(mA)		Input Current at No Load
(mA)		Input Current at Full Load
(mA)		Model NumberEfficiency
(%)
9 - 36 3.3 3000 50 503 TWRB10-24S33 82
9 - 36 5 2000 50 508 TWRB10-24S5 82
9 - 36 12 833 30 502 TWRB10-24S12 83
9 - 36 15 670 30 505 TWRB10-24S15 83
18-75 3.3 3000 30 252 TWRB10-48S33 82
18-75 5 2000 30 254 TWRB10-48S5 82
18-75 12 833 20 251 TWRB10-48S12 83
18-75 15 670 20 252 TWRB10-48S15 83
40-160 3.3 3000 12 110 TWRB10-110S33 82
40-160 5 2000 12 111 TWRB10-110S5 82
40-160 12 833 6 110 TWRB10-110S12 83
40-160 15 670 6 110 TWRB10-110S15 83
9-36 ±5 ±1000 30 502 TWRB10-24-5 83
9-36 ±12 ±420 30 506 TWRB10-24-12 83
9-36 ±15 ±340 30 512 TWRB10-24-15 83
18-75 ±5 ±1000 20 251 TRB10-48-5 83
18-75 ±12 ±420 20 253 TRB10-48-12 83
18-75 ±15 ±340 20 256 TRB10-48-15 83
40-160 ±5 ±1000 6 110 TRB10-110-5 83
40-160 ±12 ±420 6 110 TRB10-110-12 83
40-160 ±15 ±340 6 112 TRB10-110-15 83