Polytron Devices

1 Watt Single and Dual Output 7-pin SIP Package

DC-DC Converters For Medical Applications

The SWU1/MHIA Series of single- and dual- unregulated-output, 1-watt DC-DC converters is designed for medical applications. Available with output voltages up to ±15 V and output currents up to 200 mA, the series features a high efficiency up to 81%, 4.2 KV AC/6 KV DC isolation and reinforced insulation. It has a patient leakage current rating of 2 μA (max.) to meet EN60601-1, ANSI/AAMI ES60601-1 standards. This RoHS-compliant device is housed in an industry-standard 7-pin SIP package measuring 0.77” × 0.39” × 0.5” with internal SMD construction, and it operates over a wide temperature range of -40ºC to +85ºC.

INPUT

• Voltage Type: Vo, lo Nom, ±10 Max. Vdc
• Filter: Capacitor

OUTPUT

• Voltage Tolerance: 100% full load , ±5 Max. %
• Line Regulation: For 1% of Vin, 1.2 Typ. %
• Load Regulation
• 5V (10% - 100% F.L), 20 Max. %
• 9V (10% - 100% F.L): 15 Max. %
• 12V (10% - 100% F.L): 15 Max. %
• 15V (10% - 100% F.L): 15 Max. %
• Ripple and noise: 20MHz bandwidth, 70 Typ., 120 Max.mVp-p
• Output Short Circuit: Supply voltage must be discontinued at the end of short circuit duration, 3 Max. S

GENERAL SPECIFICATIONS

• Isolation Resistance: 500Vdc, 1000Min. MΩ
• Isolation Capacitance: Input-output, 100KHz/0.1V, 5 Typ. pF
• Switching Frequency: Full load, nominal input, 100 Typ. KHz

ENVIRONMENTAL SPECIFICATIONS

• Operating Temperature: -40 Min., 85 Max. ºC
• Storage Temperature Range: -55 Min., 125 Max. °C
• Humidity: Non-condensing, 95 Max. %
• Cooling: Free air convection

PHYSICAL SPECIFICATIONS

• Design Meet Safety Standard: IEC/UL/EN60950-1, UL:E193009, CB:UL(Demko)
• Transformer Creepage: 5 Min. mm
• Transformer Clearance: 5 Min. mm
• PCB Creepage and Clearance: 5.5 Min. mm
• Case Material: DAP
• Weight: 4.0 Typ. g
• Dimensions: 0.77"× 0.39"× 0.5" (19.5mm × 9.8mm × 12.5mm)
• MTBF: MIL-HDBK-217F@25oC, 3500000 Min.