Polytron LWB30 Series DC-DC Converters, 30 Watt, Single and Dual Output, 4:1 Ultra Wide Input Range, 1.0" x 2.0" x 0.4"

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Item Number: LWB30

High efficiency with ultra wide input voltage

With an efficiency of up to 91%, our 30 watt single and dual output DC-DC converter features a low profile package of 1.0" x 2.0" x 0.4", an ultra wide input voltage and operating temperatures up to 85°C. This epoxy-encapsulated design meets UL60950-1, EN-60950-1 and IEC60950-1 standards and is RoHS compliant.

LWB30 Series Specification Sheet PDF

			Output Current (mA)			Input Current
Daburn Part Number	Input Voltage Range (Vdc)	Output Voltage (Vdc)	Min. Load	Full Load	Output Ripple & Noise	Input Current No Load (mA)	Full Load	Efficiency %	Max. Capacitor Load µF
Single Output
LWB30-24S1.5	9 – 36	1.5	0	8500	100mVp-p	70	700	80	20000μF
LWB30-24S2.5		2.5	0	8000	100mVp-p	70	1054	83	20000μF
LWB30-24S3.3		3.3	0	7500	100mVp-p	70	1258	86	20000μF
LWB30-24S5		5	0	6000	100mVp-p	105	1488	88	14400μF
LWB30-24S5.1		5.1	0	6000	100mVp-p	105	1517	88	14400μF
LWB30-24S12		5	0	2500	150mVp-p	20	1471	89	3000μF
LWB30-24S15		3.3	0	2000	150mVp-p	30	1471	89	2000μF
LWB30-48S1.5	18 – 75	1.5	0	8500	100mVp-p	30	350	84	20000μF
LWB30-48S2.5		2.5	0	8000	100mVp-p	45	520	86	20000μF
LWB30-48S3.3		3.3	0	7500	100mVp-p	45	629	88	20000μF
LWB30-48S5		5	0	6000	100mVp-p	65	744	88	14400μF
LWB30-48S5.1		5.1	0	6000	100mVp-p	65	759	90	14400μF
LWB30-48S12		12	0	2500	150mVp-p	60	727	91	3000μF
LWB30-48S15		15	0	2000	150mVp-p	50	718	91	2000μF
Dual Output
LWB30-24-5	9 – 36	±5	0	±3000	100mVp-p	90	1488	88	±3000μF
LWB30-24-12		±12	0	±1250	150mVp-p	25	1506	87	±2000μF
LWB30-24-15		±15	0	±1000	150mVp-p	25	1506	87	±1300μF
LWB30-48-5	18 – 75	±5	0	±3000	100mVp-p	50	744	88	±3000μF
LWB30-48-12		±12	0	±1250	150mVp-p	15	744	88	±2000μF
LWB30-48-15		±15	0	±1000	150mVp-p	15	744	88	±1300μF

Input and Output Specifications:

INPUT

Input voltages
- 24V nominal input: 9 - 36 Vdc
- 48V nominal input: 18 - 75 Vdc
Input filter: L-C 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: 9 Vdc
- 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 OV<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: 3 mA

OUTPUT

Output power: 30 Watts, max.
Voltage accuracy Full load and nominal Vin: ±1%

Minimum load: 0
Voltage adjustability: ±10%
Line regulation
- LL to HL at Full Load: ±0.5%
- Single: ±0.5%
Load regulation
- No Load to Full Load Dual: ±1%
Cross regulation
- Dual Asymmetrical load 25%/100% FL: ±5%
Ripple and noise (20 MHz bandwidth)
- 100 - 150 mVp-p (measured with a 0.1/IF/50V MLCC
Temperature coefficient: ±0.02%/°C, max.
Transient response recovery time
- 25% load step change: 250µS
- 1.5 Vout: 3.9 Vdc
Overvoltage protection:
- 1.8 Vout: 3.9 Vdc
Zener diode clamp:
- 2.5 Vout: 3.9 Vdc
- 3.3 Vout: 3.9 Vdc
- 5 Vout: 6.2 Vdc
- 12 Vout: 15 Vdc
- 15 Vout: 18 Vdc
Over load protection
- Percentage of FL at nominal input: 150% max *Short circuit protection: Hiccup, automatic recovery

More Specifications:

GENERAL

Efficiency: Up to 91%
Isolation voltage
- Input to Output: 1600 Vdc, min
- Input (Output) to Case: 1600 Vdc, min
Isolation resistance: 109 Ohms, min
Isolation capacitance: 1000 pF, max
Switching frequency: 300 KHz typ.
Approvals and standards: IEC60950-1, UL60950-1, EN60950-1
Case Material: Nickel-coated copper
Base Material: FR4 PCB
Potting Material: Epoxy (UL94-YO)
Dimensions: 2.00 x 1.00 x 0.40 in. (50.8 x 25.4 x 10.2 mm)
Weight: 30.5 g (1.07 oz.)
BELI,CORE-TR-NWT-000332: 3.163 x 106 hrs.
MTBF: MIL-HDBK-217F: 4.347 x 105 hrs.

ENVIRONMENTAL

Operating ambient temperature: -40 to 85°C with derating
Over temperature protection: 115°C, typ.
Maximum case temperature: 100°C
Storage temperature range: -55 to 105°C
Thermal impedance
- Natural convection: 10°C/Watt
- Natural convection with heat sink: 8.24°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, IOV/rn Perf., Criteria A
Fast transient: EN61000-4-4, ±2KV Perf., Criteria A
Surge: EN61000-4-5, ±1KV Perf., Criteria B
Conducted immunity: EN61000-4-6, 10 Vrms Perf., Criteria A

Notes

1. Bellcore TR-NWT-000332, Case1: 50% Stress, Temperature at 40°C. (Ground, fixed and controlled environment) MIL-STD-217F Notice 2 @ Ta = 25°C, Full load (Ground, Benign, controlled environment).

2. Maximum value at normal input voltage.

3. Typical value at nominal input voltage and no load.

4. Typical value at nominal input voltage and full load.

5. Test by minimum Vin and constant resistive load.

6. The ON/OFF control pin voltage is referenced to -Input.

7. Heat sink is optional and P/N: 7G-0020C-F

8. 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.

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

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