DC/DC 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 VACrms rated for 250 VACrms working voltage Certification according to IEC/EN/ES 60601-1 3rd edition for 2xMOPP Risk management process according to ISO 14971 including risk management file Acceptance criteria for electronic assemblies according to IPC-A-610 Level 3 CB Scheme IEC 60601-1 Low leakage current < 2.5 A Extended operating temperature range -40C to 80C. EMC compliance to IEC 60601-1-2 4th edition and EN55032 class A Operating up to 5000m altitude 5 year product warranty ES 60601-1 The THM-20WI series is a range of medical 20 Watt DC/DC converters in 1.6" x 1.0" plastic package and with ultra wide 4:1 input voltage range. They provide a reinforced isolation system for 5000 VACrms isolation and a very low leakage current of less than 2.5 A. The units are approved to IEC/EN/ES 60601-1 3rd edition for 2 x MOPP (Means Of Patient Protection) and come along with an ISO 14971 risk management file. Design and production conform to the quality management system ISO 13485. With a high efficiency of up to 89% and highest grade components the converters can reliably operate in an ambient temperature range of -40C up to +80C. They constitute a reliable solution not only for medical equipment but also for demanding ranges of application such as transportation, control & measurement or IGBT drivers. Models Order code* Input voltage range Output voltage Output current max. Efficiency typ. THM 20-2411WI 5.0 VDC 4000 mA 88.5 % THM 20-2412WI 12 VDC 1670 mA 88.5 % 15 VDC 1330 mA 89.0 % 24 VDC 833 mA 88.5 % THM 20-2421WI 5 VDC 2000 mA 86.0 % THM 20-2422WI 12 VDC 833 mA 88.5 % THM 20-2423WI 15 VDC 667 mA 89.0 % THM 20-4811WI 5.0 VDC 4000 mA 89.5 % THM 20-4812WI 12 VDC 1670 mA 88.5 % 15 VDC 1330 mA 89.0 % 24 VDC 833 mA 88.5 % THM 20-4821WI 5 VDC 2000 mA 86.0 % THM 20-4822WI 12 VDC 833 mA 88.5 % THM 20-4823WI 15 VDC 667 mA 89.0 % THM 20-2413WI THM 20-2415WI THM 20-4813WI THM 20-4815WI 9.0 - 36 VDC (24 VDC nominal) 18 - 75 VDC (48 VDC nominal) * suffix -A1 for remote control option with positive logic suffix -A2 for remote control option with negative logic www.tracopower.com Page 1 of 4 THM 20WI Series, 20 Watt Input Specifications Input current no load 24 Vin models: 10 mA typ. 48 Vin models: 9 mA typ. Surge voltage (3 sec. max.) 24 Vin models: 50 V max. 48 Vin models: 100 V max. Start-up voltage 24 Vin models: 9 VDC (or lower) 48 Vin models: 18 VDC (or lower) Startup time 60 ms max. (30 ms typ.) Under voltage shut down (lock-out circuit) 24 Vin models: 7.8 - 8.6 VDC 48 Vin models: 15.8 - 17.4 VDC Input filter Pi-type Conducted noise - Conducted & Radiated input suppression EN 55011 limits to IEC 60601-1-2 4th editon EN55032 class A (internal filter) EN55032 class B with external components - Filter proposal www.tracopower.com/overview/thm20wi EMC immunity - Generic for Medical equipment IEC/EN 60601-1-2 4th edition - ESD (electrostatic discharge) EN 61000-4-2, air 15 kV, contact 8 kV, perf. criteria A - Radiated immunity EN 61000-4-3, 10 V/m, perf. criteria A - Fast transient / surge EN 61000-4-4, 2 kV, perf. criteria A (with external input capacitor / diode) EN 61000-4-5, 2 kV perf. criteria A 24 Vin models: 2 pcs. Nippon chemi-con KY 220 F / 100 V 1 pcs. TVS - SMDJ58A, 58V, 3000 W) 48 Vin models: 2 pcs. Nippon chemi-con KY 220 F / 100 V 1 pcs. TVS - SMDJ120A, 120V, 3000 W) - Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A - Magnetic field immunity EN 61000-4-8 100 A/m, continuous, perf. criteria A 1000 A/m, 1 sec., perf. criteria A External input fuse required (recommended values, slow blow type) 24 Vin models: 4 A 48 Vin models: 2 A Output Specifications Voltage set accuracy 1 % max. Output voltage adjustment range (single output models only) Regulation - Input variation - Load variation 0 - 100 % - Cross regulation 5 & 12 VDC models: 10 % 15 & 24 VDC models: -10 / +20 % single output: dual output: single output: dual output: dual output: 0.2 % max. 0.5 % max. 0.2 % max. 1.0 % max. 5.0 % max. (asymmetrical load 25/100 %) Temperature coefficient 0.02 %/K max. Minimum load not required Ripple and noise (20 MHz Bandwidth) Transient response ()5.0 VDC models: ()12 VDC models: ()15 VDC models: 24 VDC models: 50 mVp-p typ. with cap. 10 F/25 V X7R MLCC 75 mVp-p typ. with cap. 10 F/25 V X7R MLCC 75 mVp-p typ. with cap. 10 F/25 V X7R MLCC 100 mVp-p typ. with cap. 4.7 F/50 V X7R MLCC - Recovery time (25% load step change) 250 s typ. Over current limitation at 150 % typ. of Iout rated (hiccup mode) at 185 % max. of Iout rated (hiccup mode) Short-circuit protection Continuous, automatic recovery www.tracopower.com Page 2 of 4 THM 20WI Series, 20 Watt Output Specifications (continued) Overvoltage protection ()5.0 VDC models: ()12 VDC models: ()15 VDC models: 24 VDC models: Capacitive load -Single output -Dual output 5.0 VDC models: 12 VDC models: 15 VDC models: 24 VDC models: 5 VDC models: 12 VDC models: 15 VDC models: 6.2 VDC typ. 15 VDC typ. 20 VDC typ. 30 VDC typ. 5`000 F max. 850 F max. 700 F max. 220 F max. 2`500 F max. (each output) 500 F max. (each output) 350 F max. (each output) General Specifications Temperature ranges - Operating -40C to +80C - Case temperature +105C max. - Storage temperature -55C to +125C Derating - nominal input 2 %/K above 55C - Vin min. / Vin max. 1.82 %/K above 50C Overtemperature protection at 115C typ. Thermal impedance 14.4 K/W typ. Humidity (non condensing) 5 % to 95 % rel H max. Isolation voltage (50 Hz, 60 s) 5000 VACrms, reinforced Clearance/creepage 8 mm min. Leakage current ( at 240 VAC, 60 Hz) 2.5 A max. Isolation capacitance (input/output) 20 pF typ. Altitude during operation 5000 m Reliability, calculated MTBF (MIL-HDBK-217F at +25C, ground benign) 1`712`000 h Switching frequency 225-285 kHz (pulse width modulation) Vibration and thermal shock resistance according to MIL-STD-810F Remote On/Off (for THM 20 -A1 / -A2 option models only) - Positive logic (-A1 models) Off: short circuit or 0 - 1.2 VDC (referred to -Vin pin) On: open circuit or 3.5 - 12 VDC (referred to -Vin pin) - Negative logic (-A2 models) Off: open circuit or 3.5 - 12 VDC (referred to -Vin pin) On: short circuit or 0 - 1.2 VDC (referred to -Vin pin) - Off idle current 2.5 mA typ. - Remote pin input current -0.5 mA min. 1 mA max. Safety standards/approvals - Medical equipment ANSI/AAMI ES 60601-1:2005/(R)2012, IEC/EN 60601-1 3rd edition - Certification documents www.tracopower.com/overview/thm20wi Environmental compliance - Reach www.tracopower.com/info/reach-declaration.pdf - RoHS RoHS directive 2011/65/EU Physical Specifications Casing material non-conductive plastic Base material non-conductive plastic Potting material silicone (UL94 V-0 rated) Package weight 24 g (0.85oz) Soldering temperature max. 265C / 10 s All specifications valid at nominal input voltage, full load and +25C after warm-up time unless otherwise stated. www.tracopower.com Page 3 of 4 THM 20WI Series, 20 Watt Outline Dimensions 5.08 5.08 (0.40) (0.20) (0.20) 5 (0.22) 1 35.56 (1.40) 2 (0.40) 5.6 4 40.6 (1.60) 6 10.2 (0.10) 10.16 2.54 25.4 (1.00) 2.54 10.16 (0.40) (0.40) Single +Vin (Vcc) -Vin (GND) +Vout -Vout Trim No pin* / Remote Dual +Vin (Vcc) -Vin (GND) +Vout Common -Vout No pin* / Remote *If remote is not selected ther will be no pin Dimensions in [mm], () = Inch Tolerances 0.5 (0.02) 0.25 (0.01) Pin pitch tolerances 0.25 (0.01) Pin o 1.0 0.1 (0.04 0.004) 3 10.16 Pinout Pin 1 2 3 4 5 6 (0.10) (c) Copyright 2018 Traco Electronic AG Specifications can be changed without notice! Rev. August 20, 2018 www.tracopower.com Page 4 of 4