Our 20 watt single output DC-DC converter is UL- and CE-approved and features a low profile package of 1.0" x 2.0" x 0.4" and minimum input/output isolation of 1500 Vdc. This epoxy-encapsulated design also has six-sided continuous metal shielding and an operating temperature range between -40 and 85°C.

INPUT

• Input voltage range
  
• 24V nominal input: 9 - 36 Vdc
• 48V nominal input: 18 - 75 Vdc
• Input filter: Pi type
• Input surge voltage
• 24V input: 50 Vdc, 100 mS max
• 48V input: 100 Vdc
• Input reflected ripple current
• Nominal Vin and full load: 20mAp-p
• Start up time
• Nominal Vin and Power up: 20Ms typ.
• Constant resistive load: Remote ON/OFF 20mS, typ.
• Start-up voltage
• 24V input: 9 Vdc  * 48V input: 18 Vdc
• Shutdown Voltage
• 24V input: 7.5 Vdc
• 48V input: 15 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 pin
• Nominal Vin: -0.5 mA - 0.5 mA
• Remote off state input current
  
• Nominal Vin: 2.5 mA

OUTPUT

• Output power: 20 Watts, max.
• Voltage accuracy
• Full load and nominal Vin: ±1%
• Minimum load: 0%
• Voltage adjustability
• Single output: ±10%
• Line regulation
• LL to HL at Full Load Single: ±0.2%
• Dual: ±0.5%
• Load regulation
• No Load to Full Load Single: ±0.5%
• Dual: ±1%
• Cross regulation (Dual)
• Asymmetrical load 25%/100% FL: ±5%
• Ripple and noise (20 MHz bandwidth): 60 - 100 mVp-p (Measured with a 0.1μF/50V MLCC)
• Temperature coefficient: ±0.02%/°C, max
• Transient response recovery time
• 25% load step change: 250μS
• 3.3V output: 3.9Vdc
• Over voltage protection
• 5V output: 6.2 Vdc
• Zener diode clamp
• 12V output: 15 Vdc
• 15V output: 18 Vdc
• Over load protection
• Percent of FL at nominal input: 150% typ.
• Short circuit protection: Hiccup, automatic recovery

GENERAL

• Efficiency: 85 - 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: 10⁹ ohms, min
• Isolation capacitance: 1500 pF, max.
• Switching frequency: 400 KHz. typ.
• Approvals and 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 inches (50.8 x 25.4 x 10.2 mm)
• Weight: 27 g (0.95 oz)
• MTBF
• BELLCORE-TR-NWT-000332: 1.620 x 10^6 hrs
• MIL-HDBK-217F: 6.590 x 10⁵ hrs.

ENVIRONMENTAL

• Operating ambient temperature
• -40 to 66°C without derating
• 66 to 105°C with derating
• 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 B
• Radiated immunity: EN61000-4-3, 10V/m, Perf. Criteria A * Fast transient: EN61000-4-4, ±2KV, Perf. Criteria B
• Surge: EN61000-4-5, ±1KV, Perf. Criteria A
• Conducted immunity: EN61000-4-6, 10 Vrms, Perf. Criteria A