Polytron LWA30 Series DC-DC Converters, 30 Watt, Single and Dual Output, Isolated, 2:1 Wide Input Range, 1.0" x 2.0" x 0.4"

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Item Number: LWA30

RoHS compliant with short circuit protection

Our 30 watt single and dual output DC-DC converter is RoHS compliant, epoxy encapsulated and features six-sided continuous metal shielding. The design features a low profile package of 1.0" x 2.0" x 0.4" and operating temperature up to 85°C with derating. The 30 watt model meets UL 60950-1, EN-60950 and IEC 60950-1 standards.

LWA30 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
LWA30-12S1.5	9 – 18	1.5	0	8500	100mVp-p	70	1416	79	20000μF
LWA30-12S2.5		2.5	0	8000	100mVp-p	100	2083	84	20000μF
LWA30-12S3.3		3.3	0	8000	100mVp-p	90	2716	85	20000μF
LWA30-12S5		5	0	6000	100mVp-p	130	3012	87	14400μF
LWA30-12S5.1		5.1	0	6000	100mVp-p	130	3072	87	14400μF
LWA30-12S12		5	0	2500	150mVp-p	90	2941	89	3000μF
LWA30-12S15		3.3	0	2000	150mVp-p	80	2941	89	2000μF
LWA30-24S1.5	18 – 36	1.5	0	8500	100mVp-p	50	700	85	20000μF
LWA30-24S2.5		2.5	0	8000	100mVp-p	50	1028	87	20000μF
LWA30-24S3.3		3.3	0	8000	100mVp-p	50	1325	88	20000μF
LWA30-24S5		5	0	6000	100mVp-p	75	1453	90	14400μF
LWA30-24S5.1		5.1	0	6000	100mVp-p	75	1482	90	14400μF
LWA30-24S12		12	0	2500	150mVp-p	40	1437	91	3000μF
LWA30-24S15		15	0	2000	150mVp-p	30	1437	91	2000μF
LWA30-48S1.5	36 – 75	1.5	0	8500	100mVp-p	45	350	80	20000μF
LWA30-48S2.5		2.5	0	8000	100mVp-p	45	514	85	20000μF
LWA30-48S33		3.3	0	8000	100mVp-p	30	663	87	20000μF
LWA30-48S5		5	0	6000	100mVp-p	45	727	90	14400μF
LWA30-48S5.1		5.1	0	6000	100mVp-p	45	750	89	14400μF
LWA30-48S12		12	0	2500	150mVp-p	40	718	91	3000μF
LWA30-48S15		15	0	2000	150mVp-p	40	718	91	2000μF
Dual Output
LWA30-12-5	9 – 18	±5	0	±3000	100mVp-p	90	3012	87	±3000μF
LWA30-12-12		±12	0	±1250	150mVp-p	50	3012	87	±2000μF
LWA30-12-15		±15	0	±1000	150mVp-p	40	3012	87	±1300μF
LWA30-24-5	18 – 36	±5	0	±3000	100mVp-p	70	1453	90	±3000μF
LWA30-24-12		±12	0	±1250	150mVp-p	30	1471	89	±2000μF
LWA30-24-15		±15	0	±1000	150mVp-p	30	1453	90	±1300μF
LWA30-24-5	36 – 75	±5	0	±3000	100mVp-p	35	727	90	±3000μF
LWA30-24-12		±12	0	±1250	150mVp-p	30	744	88	±2000μF
LWA30-24-15		±15	0	±1000	150mVp-p	20	735	89	±1300μF

Input and Output Specifications:

INPUT

Input voltage range
- 12V nominal input: 9 - 18 Vdc
- 24V nominal input: 18 - 36 Vdc
- 48V nominal input: 36 - 72 Vdc
Input filter: Pi type
Input surge voltage: 100 mS max
- 12V input - 25 Vdc
- 24V input - 50 Vdc
- 48V input - 100 Vdc
Input reflected ripple current
- Nominal Vin and full load: 20mV p-p
Start up time, Nominal Vin and constant resistive load
- Power up: 30 mS, typ.
- Remote ON/OFF: 30 ms, typ.
Start-up voltage
- 12V input - 9 Vdc
- 24V input - 18 Vdc
- 48V input - 36 Vdc
Shutdown Voltage
- 12V input - 8 Vdc
- 24V input - 18 Vdc
- 48V input - 36 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: 3 mA

OUTPUT

Output power: 30 Watts, max.
Voltage accuracy
- Full load and nominal Vin: ±1%
Voltage adjustability
- Single output: ±10%
- Minimum load: 0%
Line regulation:
- LL to HL at Full Load: ±0.2%
- 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)
- 1.5 - 5.1Vo 100mVp-p (Measured with a 1μF/50V MLCC)
- 12 - 15Vo 150 mVp-p
Temperature coefficient: ±0.02%/°C, max
Transient response recovery time
- 25% load step change: 250μS
- 1.5V Output 2.0V
- 2.5V Output 3.3V
- 3.3V Output 3.9V
Over voltage protection
- 5V, 5.1V and ±5V Output: 6.2V
Zener diode clamp
- 12V and ±12V Output: 15V
- 15V and ±15V Output: 18V
Over load protection
- Percent of FL at nominal input: 150% typ.
Short circuit protection: Hiccup, automatic recovery

More Specifications:

GENERAL

Efficiency: 79 - 91%
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: 430 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: 3.173 x 106 hrs.
- MIL-HDBK-217F 5.548 x 105 hrs.

ENVIRONMENTAL

Operating ambient temperature: -40 to 85°C with 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 Vrms, Perf. Criteria A

Notes

1. Bellcore TR-NWT-00032, Case: 50% Stress, Temperature at 40°C. MIL-STD-217F Notice 2 @ Ta = 25°C, Full load (Ground, Benign, controlled environment).

2. Maximum value at nominal 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-0020A-F

8. The LWA30 series can meet EN55022 Class A with parallel an external capacitor to the input pins. Recommend: 12 Vin : 10 μ F/25V X7R 1812 MLCC. 24 Vin : 4.7 μ F/50V X7R 1812 MLCC. 48 Vin : 2.2μ /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 suggested: Nippon chemi-con KY series, 220μ F/100V, ESR48mΩ

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