DC/DC Medical Converter
THM 3WI Series, 3 Watt
•
Ultra wide 4:1 input voltage 3 W DC/DC
converter in a compact DIP-24 plastic
case
•
I/O isolation 5000 VAC rated for 250
VAC working voltage
•
Certification according to IEC/EN/ES
60601-1 3rd edition for 2 x MOPP
•
Risk management process according to
ISO 14971 incl. risk management file
•
Acceptance criteria for electronic
assemblies acc. to IPC-A-610 Level 3
•
Low leakage current <2 µA
•
Operating temperature –40°C to 90°C
•
EMC compliance to IEC 60601-1-2 4th
edition and EN55032 class A
•
Operating up to 5000m altitude
•
5-year product warranty
IEC 60601-1
IEC 62368-1
ES 60601-1
UL 62368-1
The THM 3WI series is a range of medical 3 Watt DC/DC converters in DIP-24
plastic package and with ultra-wide 4:1 input voltage range. They provide a re-
inforced isolation system for 5000 VAC isolation and a very low leakage current
of less than 2 µA. The units are approved to IEC/EN/ES 60601-1 3rd 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. With a
high efficiency of up to 87% and highest grade components the converters can
reliably operate in an ambient temperature range of –40°C up to +90°C. They
constitute a reliable solution not only for medical equipment but also for de-
manding ranges of application such as transportation, control & measurement
or IGBT drivers.
Models
Order Code
Output 1
Output 2
Efficiency
Vnom
Imax
Vnom
Imax
typ.
THM 3-0510WI
3.3 VDC
1'000 mA
81 %
THM 3-0511WI
5 VDC
600 mA
85 %
THM 3-0512WI
12 VDC
250 mA
86 %
THM 3-0513WI
15 VDC
200 mA
88 %
THM 3-0515WI
24 VDC
125 mA
86 %
THM 3-0521WI
+5 VDC
300 mA
–5 VDC
300 mA
83 %
THM 3-0522WI
+12 VDC
125 mA
–12 VDC
125 mA
86 %
THM 3-0523WI
+15 VDC
100 mA
–15 VDC
100 mA
86 %
THM 3-2410WI
3.3 VDC
1'000 mA
82 %
THM 3-2411WI
5 VDC
600 mA
85 %
THM 3-2412WI
12 VDC
250 mA
87 %
THM 3-2413WI
15 VDC
200 mA
87 %
THM 3-2415WI
24 VDC
125 mA
87 %
THM 3-2421WI
+5 VDC
300 mA
–5 VDC
300 mA
83 %
THM 3-2422WI
+12 VDC
125 mA
–12 VDC
125 mA
87 %
THM 3-2423WI
+15 VDC
100 mA
–15 VDC
100 mA
86 %
THM 3-4810WI
3.3 VDC
1'000 mA
81 %
THM 3-4811WI
5 VDC
600 mA
84 %
THM 3-4812WI
12 VDC
250 mA
87 %
THM 3-4813WI
15 VDC
200 mA
87 %
THM 3-4815WI
24 VDC
125 mA
87 %
THM 3-4821WI
+5 VDC
300 mA
–5 VDC
300 mA
83 %
THM 3-4822WI
+12 VDC
125 mA
–12 VDC
125 mA
86 %
THM 3-4823WI
+15 VDC
100 mA
–15 VDC
100 mA
86 %
www.tracopower.com
January 6, 2021
Page 1 / 5
Options
on demand
(backorder with MOQ
non stocking item)
- Optional models with alternative pinning
- Optional models with adjustable output
- Optional models with remote-control function
- Optional models with adjustable output and remote-control function
Input Current
- At no load
5 Vin models:
20 mA typ.
24 Vin models:
6 mA typ.
48 Vin models:
4 mA typ.
Surge Voltage
5 Vin models:
16 VDC max. (3 s max.)
24 Vin models:
50 VDC max. (3 s max.)
48 Vin models:
100 VDC max. (3 s max.)
Under Voltage Lockout
5 Vin models:
3 VDC min. / 4 VDC typ. / 4.4 VDC max.
24 Vin models:
7 VDC min. / 8 VDC typ. / 8.8 VDC max.
48 Vin models:
15 VDC min. / 16 VDC typ. / 17.5 VDC max.
Recommended Input Fuse
5 Vin models:
1'600 mA (slow blow)
24 Vin models:
800 mA (slow blow)
48 Vin models:
500 mA (slow blow)
(The need of an external fuse has to be assessed
in the final application.)
Input Filter
Internal Pi-Type
Input Specifications
Output Voltage Adjustment
–10% to +20% (15 & 24 Vout single models)
±10% (other models)
(Only for optional models with adjustable output)
(By external trim resistor)
See application note:
www.tracopower.com/overview/thm3wi
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
(25% / 100% asym. load)
dual output models:
5% max.
Ripple and Noise
(20 MHz Bandwidth)
- single output
3.3 Vout models:
30 mVp-p typ. (w/ 10 µF X7R)
5 Vout models:
30 mVp-p typ. (w/ 10 µF X7R)
12 Vout models:
40 mVp-p typ. (w/ 10 µF X7R)
15 Vout models:
40 mVp-p typ. (w/ 10 µF X7R)
24 Vout models:
50 mVp-p typ. (w/ 4.7 µF X7R)
- dual output
5 / -5 Vout models:
30 / 30 mVp-p typ. (w/ 10 µF X7R)
12 / -12 Vout models:
40 / 40 mVp-p typ. (w/ 10 µF X7R)
15 / -15 Vout models:
40 / 40 mVp-p typ. (w/ 10 µF X7R)
Capacitive Load
- single output
3.3 Vout models:
1'050 µF max.
5 Vout models:
750 µF max.
12 Vout models:
130 µF max.
15 Vout models:
100 µF max.
24 Vout models:
39 µF max.
- dual output
5 / -5 Vout models:
430 / 430 µF max.
12 / -12 Vout models:
75 / 75 µF max.
15 / -15 Vout models:
56 / 56 µF max.
Minimum Load
Not required
Temperature Coefficient
±0.02 %/K max.
Output Specifications
THM 3WI Series, 3 Watt
All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.
www.tracopower.com
January 6, 2021
Page 2 / 5
Start-up Time
30 ms typ.
Short Circuit Protection
Continuous, Automatic recovery
Output Current Limitation
150% typ. of Iout max.
Overvoltage Protection
112 - 152% of Vout nom.
(depending on model)
3.7 - 5 VDC (3.3 VDC model)
5.6 - 7 VDC (5 VDC model)
13.5 - 16 VDC (12 VDC model)
18.3 - 22 VDC (15 VDC model)
29.1 - 34.5 VDC (24 VDC model)
5.6 - 7 VDC (±5 VDC model)
13.5 - 18.2 VDC (±12 VDC model)
17 - 22 VDC (±15 VDC model)
Transient Response
- Response Time
250 µs typ. (25% Load Step)
Safety Standards
- IT / Multimedia Equipment
EN 62368-1
IEC 62368-1
UL 62368-1
- Medical Equipment
EN 60601-1
IEC 60601-1
ANSI/AAMI ES 60601-1
2 x MOPP (Means Of Patient Protection)
- Certification Documents
www.tracopower.com/overview/thm3wi
Pollution Degree
PD 2
Over Voltage Category
OVC II
Safety Specifications
EMI Emissions
EN 60601-1-2 edition 4 (Medical Devices)
- Conducted Emissions
EN 55011 class A (internal filter)
EN 55011 class B (with external filter)
EN 55032 class A (internal filter)
EN 55032 class B (with external filter)
FCC Part 18 class A (internal filter)
FCC Part 18 class B (with external filter)
- Radiated Emissions
EN 55011 class A (internal filter)
EN 55011 class B (with external filter)
EN 55032 class A (internal filter)
EN 55032 class B (with external filter)
FCC Part 18 class A (internal filter)
FCC Part 18 class B (with external filter)
External filter proposal:
www.tracopower.com/overview/thm3wi
EMS Immunity
EN 60601-1-2 edition 4 (Medical Devices)
- Electrostatic Discharge
Air:
EN 61000-4-2, ±15 kV, perf. criteria A
Contact:
EN 61000-4-2, ±8 kV, perf. criteria A
- RF Electromagnetic Field
EN 61000-4-3, 10 V/m, perf. criteria A
- EFT (Burst) / Surge
EN 61000-4-4, ±2 kV, perf. criteria A
EN 61000-4-5, ±2 kV, perf. criteria A
Ext. input component:
5 Vin models: KY 1000 µF // Vishay V10P45
24 Vin models: KY 470 µF
48 Vin models: KY 330 µF
- Conducted RF Disturbances
EN 61000-4-6, 10 Vrms, perf. criteria A
- PF Magnetic Field
Continuous:
EN 61000-4-8, 100 A/m, perf. criteria A
1 s:
EN 61000-4-8, 1000 A/m, perf. criteria A
EMC Specifications
Relative Humidity
95% max. (non condensing)
General Specifications
THM 3WI Series, 3 Watt
All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.
www.tracopower.com
January 6, 2021
Page 3 / 5
Temperature Ranges
- Operating Temperature
–40°C to +100°C
- Approved Ambient Temp.
+80°C max. (to comply with EN60601-1)
- Storage Temperature
–55°C to +125°C
Power Derating
- High Temperature
10 %/K above 95°C
Cooling System
Natural convection (20 LFM)
Remote Control
- Voltage Controlled Remote
On: 0 to 1.2 VDC or open circuit
Off: 2.2 to 12 VDC
Refers to 'Remote' and '-Vin' Pin
- Off Idle Input Current
2.5 mA typ.
- Remote Pin Input Current
-0.5 to 1.0 mA
(Only for optional models with remote-control)
Altitude During Operation
5'000 m max.
Switching Frequency
135 - 165 kHz (PWM)
150 kHz typ. (PWM)
Insulation System
Reinforced Insulation
Working Voltage (rated)
250 VAC
Isolation Test Voltage
- Input to Output, 60 s
5'000 VAC
Creepage
- Input to Output
8 mm min.
Clearance
- Input to Output
8 mm min.
Isolation Capacitance
- Input to Output, 100 kHz, 1 V
12 pF typ.
17 pF max.
Leakage Current
- Earth Leakage Current
2 µA max. (240 VAC, 60 Hz)
Reliability
- Calculated MTBF
6'400'000 h (MIL-HDBK-217F, ground benign)
Environment
- Vibration
MIL-STD-810F
- Thermal Shock
MIL-STD-810F
Housing Material
Non-conductive Plastic (UL94 V-0 rated)
Base Material
Non-conductive Plastic (UL 94 V-0 rated)
Potting Material
Silicone (UL 94 V-0 rated)
Pin Material
Copper
Pin Foundation Plating
Nickel (2 - 3 µm)
Pin Surface Plating
Tin (3 - 5 µm), matte
Soldering Profile
265°C / 10 s max.
Connection Type
THD (Through-Hole Device)
Weight
14 g
Thermal Impedance
18 K/W
Environmental Compliance
- REACH Declaration
www.tracopower.com/info/reach-declaration.pdf
REACH SVHC list compliant
REACH Annex XVII compliant
- RoHS Declaration
www.tracopower.com/info/rohs-declaration.pdf
Exemptions: 7a, 7c-I
Supporting Documents
Overview Link (for additional Documents)
www.tracopower.com/overview/thm3wi
THM 3WI Series, 3 Watt
All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.
www.tracopower.com
January 6, 2021
Page 4 / 5
Outline Dimensions
Standard pinning with options: With adjustable output and/or remote-control function
Optional pinning
THM 3WI Series, 3 Watt
11
2223
2
16 14
Bottom view
15.24
2.54
20.3
(0.10)
(0.60)
(0.80)
10.2 (0.40)
3.8
(0.15)
2.54 15.24 2.54
2.54
31.8
(0.10)
(0.60)
(0.10)
(0.10)
(1.25)
1
2.0
(0.08)
2.54
(0.10)
10
Dimensions in mm (inch)
Tolerances ±0.5 (±0.02)
Pin Ø 0.6 ±0.1 (0.024 ±0.004)
Pin pich tolerances ±0.25 (±0.01)
Pinout
Pin Single Output Dual Output
1No pin*/Remote No pin*/Remote
2–Vin (GND) –Vin (GND)
10 No pin*/Trim No pin*/Trim
11 No pin/NC ** –Vout
14 +Vout +Vout
16 –Vout Common
22 +Vin (Vcc) +Vin (Vcc)
23 +Vin (Vcc) +Vin (Vcc)
NC:No connection
*If Remote or Trim is not selected there is no
pin on corresponding number.
** If Trim is selected there is no pin on the
corresponding pin number.
12
2324
1
15 13
Bottom view
15.24
2.54
20.3
(0.10)
(0.60)
(0.80)
10.2 (0.40)
3.8
(0.15)
2.54 20.32 2x2.54
2.0
31.8
(0.10)
(0.80)
(2x0.1)
(0.08)
(1.25)
11
Dimensions in mm (inch)
Tolerances ±0.5 (±0.02)
Pin Ø 0.6 ±0.1 (0.024 ±0.004)
Pin pich tolerances ±0.25 (±0.01)
Pinout
Pin Single Output Dual Output
1+Vin (Vcc) +Vin (Vcc)
11 No pin Common
12 –Vout No pin
13 +Vout –Vout
15 No pin +Vout
23 –Vin (GND) –Vin (GND)
24 –Vin (GND) –Vin (GND)
Remark:
No optional pinning for 5 Vin models. Cor-
responding parts are with THM 3 series by
default.
see www.tracopower.com/overview/thm3
© Copyright 2020 Traco Electronic AG Specifications can be changed without notice.
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Rev. January 6, 2021
Page 5 / 5