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30 Watt

Triple Output Ultra Wide Input Voltage, 4:1


RoHS compliant with a low profile package

With an efficiency of 88%, our 30 watt triple output DC-DC converter features an ultra wide input voltage, a low profile package of 1.0" x 2.0" x 0.4" and an operating temperature range up to 85°C. This epoxy-encapsulated design is RoHS compliant and meets UL60950-1, EN-60950-1 and IEC60950-1 standards.

INPUT

  • Input voltage range
    • 24V nominal input: 9 - 36 Vdc
    • 48V nominal input: 18 - 75 Vdc
  • Input filter: Pi type
  • Input surge voltage, 100 mS max
    • 24V input: 50 Vdc
    • 48V input: 100 Vdc
  • Input reflected ripple current
    • Nominal Vin and full load: 20 mAp-p
  • Start up time
    • Nominal Vin and constant resistive load
      • Power up: 30 mS, typ.
      • Remote ON/OFF: 30 mS, typ.
  • Start-up voltage
    • 24V input: 9Vdc
    • 48V input: 18 Vdc
  • Shutdown Voltage
    • 24V input: 8 Vdc
    • 48V input: 16 Vdc
  • Remote ON/OFF
    • Positive Logic (Standard)
      • DC-DC ON: Open or 3V<Vr<12V
      • DC-DC OFF: Short or OV<Vr<1.2V
    • Negative logic (Option)
      • DC-DC ON: Short or 0V<Vr<1.2V
      • DC-DC OFF: Open or 3V<Vr<12V
  • Input current of remote control pi
    • Nominal Vin: -0.5 mA - 0.5 mA
  • Remote off state input current
    • Nominal Vin: 3 mA

OUTPUT

  • Output power: 30 Watts, max.
  • Voltage accuracy
    • Full load and nominal Vin: Main ±1%
  • Minimum load (Note 7):See Table
  • Line regulation: LL to HL at Full Load
    • Main: ±1%
    • Auxiliary: ±.5%
  • Ripple and noise (20 MHz bandwidth): 50 - 75 mVp-p (Measured with a 0.1μF/50V MLCC)
  • Temperature coefficient: ±0.02%/ ̊C, max
  • Transient response recovery time
    • 25% load step change: 250μS
    • 3V Output: 3.9V
  • Over voltage protection
    • 5V Output: 6.2V
  • Zener diode clamp
    • 12V Output: 15V
    • 15V Output: 18V
  • Over load protection
    • Percentage of FL at nominal input: 150% typ
  • Short circuit protection: Hiccup, automatic recovery

GENERAL

  • Efficiency: 87 - 88%
  • Isolation voltage
    • Input to Output: 1600 Vdc, min
    • Input (Output) to Case: 1600 Vdc, min
  • Case grounding: Connect case to –Vin with decoupling Y cap.
  • Isolation resistance: 10^9 ohms, min
  • Isolation capacitance: 1500 pF, max.
  • Switching frequency: 400 KHz. typ.
  • Design meets safety standard: IEC60950-1, UL60950-1 EN60950-1
  • Case material: Nickel-coated copper
  • Base material: FR4 PCB
  • Potting material: Epoxy (UL94-VO)
  • Dimensions: 2.00 x 1.00 x 0.40 Inch (50.8 x 25.4 x 10.2 mm)
  • Weight: 30.5 g (1.07 oz)
  • MTBF
    • BELLCORE-TR-NWT-000332: 2.904 x 106 hrs.
    • MIL-HDBK-217F: 3.184 x 105 hrs.

ENVIRONMENTAL

  • Operating ambient temperature: -40 to 85°C without derating Over temperature protection: 115°C, typ.
  • Maximum case temperature: 105°C
  • Storage temperature range: -55 to 125°C
  • Thermal impedance
    • Nature convection: 12°C/Watt
  • Nature convection with heat -sink: 10°C/Watt
  • Thermal shock: MIL-STD-810F
  • Vibration: MIL-STD-810F
  • Relative humidity: 5 - 95% RH

EMC CHARACTERISTICS

  • EMI: EN55022, Class A
  • ESD: EN61000-4-2
    • Air: ±8KV
    • Contact: ±6KV, Perf. Criteria A
  • Radiated immunity: EN61000-4-3, 10V/m, Perf. Criteria A * Fast transient: EN61000-4-4, ±2KV, Perf. Criteria A
  • Surge: EN61000-4-5, ±1KV, Perf. Criteria A
  • Conducted immunity: EN61000-4-6, 10 V rms, Perf. Criteria A
  Output Current (mA) Input Current (mA)   
Input Voltage Range (Vdc)Output Voltage (Vdc)Min. LoadFull LoadOutput Ripple & Noise (mVp-p)No Load Full LoadEfficiency %Capacitor Load Max °(μF)Model Number
9 – 36 3.3 / ±12 500 / ±42 5000 / ±416 50/75 105 1330 87 15000 / ±340 LWB30-24S33-12
3.3 / ±15 500 / ±33 5000 / ±333 50/75 105 1330 87 15000 / ±220 LWB30-24S33-15
5 / ±12 400 / ±42 4000 / ±416 50/75 105 1488 88 8000 / ±340 LWB30-24S5-12
5 / ±15 400 / ±33 4000 / ±333 50/75 105 1488 88 8000 / ±220 LWB30-24S5-15
18 – 75 3.3 / ±12 500 / ±42 5000 / ±416 50/75 55 665 87 15000 / ±340 LWB30-48S33-12
3.3 / ±15 500 / ±33 5000 / ±333 50/75 55 665 87 15000 / ±220 LWB30-48S33-15
5 / ±12 400 / ±42 4000 / ±416 50/75 55 744 88 8000 / ±340 LWB30-48S5-12
5 / ±15 400 / ±33 4000 / ±333 50/75 55 744 88 8000 / ±220 LWB30-48S5-15

Notes

The LWB30 series can meet EN55022 Class A with parallel an external capacitor to the input pins. Recommend: 24 Vin : 4.7 μ F/50V X7R 1812 MLCC 48 Vin : 2.2 μ F/100V X7R 1812 MLCC.

An external input filter capacitor is required if the module has to meet EN61000-4-4. EN61000-4-5. The filter capacitor Polytron Devices: 24Vin Nippon chemi-con KY series, 330μ F/50V, ESR55mΩ 48Vin Nippon chemi-con KY series, 220μ F/100V, ESR48mΩ