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15 to 30 Watt DC-DC Converters

20 Watts

4:1 Wide Input Range


RLPB20 Series DC-DC Converters for Railway Applications

RLPB20 Series 20-watt single and dual output regulated DC-DC converters for railway applications feature a 4:1 wide input range, high efficiency up to 91 percent, low standby power, remote ON/OFF control for energy savings and no minimum load requirement. Isolation voltage is 3000V DC, and the units come in a miniature 1.0 by 1.0 by 0.39-inch package to suit low-profile designs. The converters also provide an internal EN50121-3-2 filter, and a six-sided continuous shield minimizes noise leakage.

RLPB20

 

INPUT

  • Operating input voltage range, Vdc
    • 9 Min., 24 Typ., 36 Max.; 24Vin(nom)
    • 18 Min., 48 Typ., 75 Max.; 48Vin(nom)
    • 36 Min., 110 Typ., 160 Max.; 110Vin(nom)
  • Start up voltage, Vdc
    • 9 Max.; 24Vin(nom)
    • 18 Max.; 48Vin(nom)
    • 36 Max.; 110Vin(nom)
  • Shutdown voltage, Vdc
    • 7.5 Min., 8 Typ., 8.8 Max.; 24Vin(nom)
    • 15.5 Min., 16 Typ., 17.5 Max.; 48Vin(nom)
    • 32 Min., 34 Typ., 35.5 Max.; 110Vin(nom)
  • Start up time, ms
    • Constant resistive load
    • 30 Typ., 40 Max.; Power up
    • 30 Typ., 40 Max.; Remote ON/OFF
  • Input surge voltage, Vdc
    • 1 second, max.
    • 50 Max.; 24Vin(nom)
    • 100 Max.; 48Vin(nom)
    • 185 Max.; 110Vin(nom)
  • Input filter
    • Pi type
  • Remote ON/OFF
    • Referred to -Vin pin
    • Open or 3 - 15 Vdc; Positive logic, DC-DC ON
    • Short or 0 - 1.2 Vdc; (Option), DC-DC OFF
    • Short or 0 - 1.2 Vdc; Negative logic, DC-DC ON
    • Open or 3 - 15 Vdc; (Standard), DC-DC OFF
    • -0.5 Min., 1 Max., mA; Input current of Ctrl pin
    • 2.5 mA Typ.; Remote off input current

OUTPUT

  • Voltage accuracy, %
    • -1.0 Min., +1.0 Max
  • Line regulation, %:
    • Low Line to High Line at Full Load
    • -0.2 Min., +0.2 Max.; Single
    • -0.5 Min., +0.5 Max.; Dual
  • Load regulation, %
    • -0.2 Min., +0.2 Max.; No Load to Full Load, Single
    • -1.0 Min., +1.0 Max.; No Load to Full Load, Dual
    • -0.1 Min., +0.1 Max.; 10% Load to 90% Load, Single
    • -0.8 Min., +0.8 Max.; 10% Load to 90% Load, Dual
  • Cross regulation, %
    • -5.0 Min., +5.0 Max.; Asymmetrical load 25%/100%FL, Dual
  • Voltage and adjustability, %
    • -10 Min., +20 Max.; Single Output, 15Vout, 24Vout
    • -10 Min., +10 Max.; Others
  • Ripple and noise, mVp-p
    • Measured by 20MHz bandwidth
    • 75 Typ.; Single, With a 22μF/25V X7R MLCC, 3.3Vout, 5Vout, 5.1Vout
    • 100 Typ.; Single, With a 22μF/25V X7R MLCC, 12Vout, 15Vout
    • 125 Typ.; Single, With a 4.7μF/50V X7R MLCC, 24Vout
    • 100 Typ.; Dual, With a 10μF/25V X7R MLCC for each output, 12Vout, 15Vout
    • 125 Typ.; Dual, With a 4.7μF/50V X7R MLCC for each output, 24Vout
  • Temperature coefficient, %/°C
    • -0.02 Min., -0.02 Max.
  • Transient response recovery time, μs
    • 250 Typ.; 25% load step change
  • Over voltage protection, Vdc
    • 3.7 Min., 5.4 Max.; 3.3Vout
    • 5.6 Min., 7.0 Max.; 5Vout, 5.1Vout
    • 13.5 Min., 19.6 Max.; 12Vout
    • 16.8 Min., 20.5 Max.; 15Vout
    • 29.1 Min., 32.5 Max.; 24Vout
  • Over load protection, %
    • 170 Typ.; % of lout rated
  • Short circuit protection
    • Continuous, automatics recovery

GENERAL SPECIFICATIONS

  • Isolation voltage, Vac:
    • 1 minute; Input to Output; 3000 Min.
    • Input (Output) to Case; 1600 Min.
  • Isolation resistance, GΩ: 500Vdc; 1 Min.
  • Isolation capacitance, pF: 2000 Max.
  • Switching frequency, kHz:
    • 3.3Vout, 5Vout; 220 Min.; 245 Typ.; 270 Max.
    • Others; 270 Min.; 300 Typ.; 330 Max.

ENVIRONMENTAL SPECIFICATIONS

  • Operating ambient temperature, °C:
    • Standard type, with derating; -40 Min.; +105 Max.
    • M3 version, with derating; -55 Min.; +105 Max.
  • Maximum case temperature, °C: 105 Max.
  • Over temperature protection: 115 Typ.
  • Storage temperature range, °C: -55 Min.; +125 Max.
  • Thermal impedance, °C/W:
    • Without heat-sink: 15.5 Typ.
    • With heat-sink: HC1, 12.3 Typ.; HC2, 10.7 Typ.; HC3, 9.1 Typ.
  • Thermal shock: MIL-STD-810F
  • Shock: EN61373, MIL-STD-810F
  • Vibration: EN61373, MIL-STD-810F
  • Relative humidity: 5% to 95% RH

PHYSICAL SPECIFICATIONS

  • Design meet safety standard: UL:E193009, CB:UL(Demko)
  • Case material: Copper
  • Base material: FR4 PCB
  • Potting material: Silicone (UL94 V-0)
  • Weight: 16.5g (0.56oz)
  • MTBF: 1.201 x 106 hrs

EMC SPECIFICATIONS

  • EMI
    • Conditions: EN50121-3-2; Without external components
    • Conditions: EN55032; With an aluminum electrolytic capacitor. Level: Class A
    • Conditions: EN55032; Without external components. Level: Class A
    • Conditions: EN55032; With external components. Level: Class B
  • 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: RLPB20-24XXX; With an aluminum electrolytic capacitor a TVS in parallel
    • Conditions: RLPB20-48XXX; With an aluminum electrolytic capacitor
    • Conditions: RLPB20-110XXX; With an aluminum electrolytic capacitor a TVS in parallel
  • Surge
    • Conditions: EN61000-4-5; ±1kV. Level: Perf. Criteria A
    • Conditions: RLPB20-24XXX; With an aluminum electrolytic capacitor a TVS in parallel
    • Conditions: RLPB20-48XXX; With an aluminum electrolytic capacitor
    • Conditions: RLPB20-110XXX; With an aluminum electrolytic capacitor a TVS in parallel
  • Conducted immunity
    • Conditions: EN61000-4-6; 10 Vr.m.s. Level: Perf. Criteria A
  • Power frequency magnetic field
    • Conditions: EN61000-4-8; 100A/m continuous; 1000A/m 1 second. Level: Perf. Criteria A
Input Voltage 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 - 36 3.3 5500 10 88 RLPB20-24S3.3 8000
9 - 36 5 4000 10 89 RLPB20-24S5 5000
9 - 36 5.1 4000 10 89 RLPB20-24S5.1 5000
9 - 36 12 1670 7 89 RLPB20-24S12 850
9 - 36 15 1330 7 89 RLPB20-24S15 700
9 - 36 24 833 10 91 RLPB20-24S24 220
18 - 75 3.3 5500 10 89 RLPB20-48S3.3 8000
18 - 75 5 4000 10 90 RLPB20-48S05 5000
18 - 75 5.1 4000 10 90 RLPB20-48S5.1 5000
18 - 75 12 1670 5 89 RLPB20-48S12 850
18 - 75 15 1330 5 90 RLPB20-48S15 700
18 - 75 24 833 8 91 RLPB20-48S24 220
36 - 160 3.3 5500 6 88 RLPB20-110S3.3 8000
36 - 160 5 4000 6 90 RLPB20-110S5 5000
36 - 160 5.1 4000 6 90 RLPB20-110S5.1 5000
36 - 160 12 1670 6 90 RLPB20-110S12 850
36 - 160 15 1330 6 90 RLPB20-110S15 700
36 - 160 24 833 6 91 RLPB20-110S24 220
9 - 36 ±12 ±833 7 89 RLPB20-24-12 ±500
9 - 36 ±15 ±667 7 90 RLPB20-24-15 ±350
9 - 36 ±24 ±417 12 91 RLPB20-24-24 ±100
18 - 75 ±12 ±833 5 89 RLPB20-48-12 ±500
18 - 75 ±15 ±667 5 90 RLPB20-48-15 ±350
18 - 75 ±24 ±417 10 91 RLPB20-48-24 ±100
36 - 160 ±12 ±833 6 90 RLPB20-110-12 ±500
36 - 160 ±15 ±667 6 90 RLPB20-110-15 ±350
36 - 160 ±24 ±417 6 91 RLPB20-110-24 ±100