DC/DC Medical Converter THM 20WI Series, 20 Watt Ultra wide 4:1 input voltage 20 W DC/DC converter in a 1.6 x 1 plastic case I/O isolation 5000 VAC rated for 250 VAC working voltage ES 60601-1 IEC 60601-1 Certification according to IEC/EN/ES UL 62368-1 IEC 62368-1 60601-1 3rd edition for 2 x MOPP The THM 20WI series is a range of medical 20 Watt DC/DC converters in 1.6 x Risk management process according to 1.0 plastic package and with ultra wide 4:1 input voltage range. They provide ISO 14971 incl. risk management file a reinforced isolation system for 5000 VAC isolation and a very low leakage Acceptance criteria for electronic current of less than 2.5 A. The units are approved to IEC/EN/ES 60601-1 3rd assemblies acc. to IPC-A-610 Level 3 edition for 2 x MOPP and come along with an ISO 14971 risk management file. Design and production conform to the quality management system ISO 13485. Low leakage current <2.5 A With a high efficiency of up to 89% and highest grade components the con- verters can reliably operate in an ambient temperature range of 40C up to Operating temperature 40C to 80C +80C. They constitute a reliable solution not only for medical equipment but EMC compliance to IEC 60601-1-2 4th also for demanding ranges of application such as transportation, control & edition and EN55032 class A measurement or IGBT drivers. Operating up to 5000m altitude 5-year product warranty Models Order Code Input Voltage Output 1 Output 2 Efficiency Range Vnom Imax Vnom Imax typ. THM 20-2411WI 5 VDC 4 000 mA 89 % THM 20-2412WI 12 VDC 1 670 mA 89 % THM 20-2413WI 15 VDC 1 330 mA 89 % 9 - 36 VDC THM 20-2415WI 24 VDC 833 mA 89 % (24 VDC nom.) THM 20-2421WI +5 VDC 2 000 mA 5 VDC 2 000 mA 86 % THM 20-2422WI +12 VDC 833 mA 12 VDC 833 mA 89 % THM 20-2423WI +15 VDC 667 mA 15 VDC 667 mA 89 % THM 20-4811WI 5 VDC 4 000 mA 90 % 12 VDC 1 670 mA 89 % THM 20-4812WI THM 20-4813WI 15 VDC 1 330 mA 89 % 18 - 75 VDC THM 20-4815WI 24 VDC 833 mA 89 % (48 VDC nom.) THM 20-4821WI +5 VDC 2 000 mA 5 VDC 2 000 mA 86 % THM 20-4822WI +12 VDC 833 mA 12 VDC 833 mA 89 % THM 20-4823WI +15 VDC 667 mA 15 VDC 667 mA 89 % Options on demand - Optional models with remote-control function (backorder with MOQ - Optional models with remote-control function with inverse logic non stocking item) Page 1 / 5 www.tracopower.com October 7, 2020THM 20WI Series, 20 Watt Input Specifications Input Current - At no load 24 Vin models: 10 mA typ. 48 Vin models: 9 mA typ. Surge Voltage 24 Vin models: 50 VDC max. (3 s max.) 48 Vin models: 100 VDC max. (3 s max.) Under Voltage Lockout 24 Vin models: 7.8 VDC min. / 8 VDC typ. / 8.6 VDC max. 48 Vin models: 15.8 VDC min. / 16 VDC typ. / 17.4 VDC max. Recommended Input Fuse 24 Vin models: 4 000 mA (slow blow) 48 Vin models: 2 000 mA (slow blow) (The need of an external fuse has to be assessed in the final application.) Input Filter Internal Pi-Type Output Specifications Output Voltage Adjustment 10% to +20% (15 & 24 Vout single models) 10% (other single output models) (By external trim resistor) See application note: www.tracopower.com/overview/thm20wi Output power must not exceed rated power Voltage Set Accuracy 1% max. Regulation - Input Variation (Vmin - Vmax) single output models: 0.2% max. dual output models: 0.5% max. - Load Variation (0 - 100%) single output models: 0.2% max. dual output models: 1% max. (Output 1) 1% max. (Output 2) - Cross Regulation dual output models: 5% max. (25% / 100% asym. load) Ripple and Noise - single output 5 Vout models: 50 mVp-p typ. (w/ 10 F X7R) (20 MHz Bandwidth) 12 Vout models: 75 mVp-p typ. (w/ 10 F X7R) 15 Vout models: 75 mVp-p typ. (w/ 10 F X7R) 24 Vout models: 100 mVp-p typ. (w/ 4.7 F X7R) - dual output 5 / -5 Vout models: 50 / 50 mVp-p typ. (w/ 10 F X7R) 12 / -12 Vout models: 75 / 75 mVp-p typ. (w/ 10 F X7R) 15 / -15 Vout models: 75 / 75 mVp-p typ. (w/ 10 F X7R) Capacitive Load - single output 5 Vout models: 5 000 F max. 12 Vout models: 850 F max. 15 Vout models: 700 F max. 24 Vout models: 220 F max. - dual output 12 / -12 Vout models: 500 / 500 F max. 15 / -15 Vout models: 350 / 350 F max. - 24 Vin input 5 / -5 Vout models: 2 500 / 2 500 F max. - 48 Vin input 5 / -5 Vout models: 500 / 500 F max. Minimum Load Not required Temperature Coefficient 0.02 %/K max. Start-up Time 30 ms typ. / 60 ms max. Short Circuit Protection Continuous, Automatic recovery Output Current Limitation 185% max. of Iout max. 150% typ. of Iout max. All specifications valid at nominal voltage, full load and +25C after warm-up time unless otherwise stated. Page 2 / 5 www.tracopower.com October 7, 2020