DC/DC Converter
TMR 3WI Series, 3 Watt
•
Highest power density in SIP package
•
Ultra wide 4:1 input range
•
Small footprint: 21.8 x 9.2 mm
•
Temperature range –40° to +85°C
•
High efficiency up to 82%
•
Excellent load and line regulation
•
Short-circuit protection
•
I/O isolation 1600 VDC
•
Remote On/Off control
•
3-year product warranty
IEC 62368-1
IEC 60950-1
UL 62368-1
UL 60950-1
The TMR 3WI series is a new family of isolated 3W DC/DC converters with reg-
ulated output, featuring ultra-wide 4:1 input voltage range. The product comes
in a ultra-compact SIP plastic package with a small footprint occupying only 2.0
cm² (0.3 square inch) of board space. An excellent efficiency allows –40° to
+85°C operation temperatures.
Further features include remote On/Off control and continuous short circuit
protection. The very compact dimensions of these converters make them an
ideal solution for many space critical applications in battery-powered equip-
ment and instrumentation.
Models
Order Code
Output 1
Output 2
Efficiency
Vnom
Imax
Vnom
Imax
typ.
TMR 3-1210WI
3.3 VDC
700 mA
74 %
TMR 3-1211WI
5 VDC
600 mA
78 %
TMR 3-1212WI
12 VDC
250 mA
80 %
TMR 3-1213WI
15 VDC
200 mA
80 %
TMR 3-1221WI
+5 VDC
300 mA
–5 VDC
300 mA
80 %
TMR 3-1222WI
+12 VDC
125 mA
–12 VDC
125 mA
80 %
TMR 3-1223WI
+15 VDC
100 mA
–15 VDC
100 mA
80 %
TMR 3-2410WI
3.3 VDC
700 mA
75 %
TMR 3-2411WI
5 VDC
600 mA
80 %
TMR 3-2412WI
12 VDC
250 mA
82 %
TMR 3-2413WI
15 VDC
200 mA
82 %
TMR 3-2421WI
+5 VDC
300 mA
–5 VDC
300 mA
79 %
TMR 3-2422WI
+12 VDC
125 mA
–12 VDC
125 mA
81 %
TMR 3-2423WI
+15 VDC
100 mA
–15 VDC
100 mA
81 %
TMR 3-4810WI
3.3 VDC
700 mA
74 %
TMR 3-4811WI
5 VDC
600 mA
80 %
TMR 3-4812WI
12 VDC
250 mA
81 %
TMR 3-4813WI
15 VDC
200 mA
81 %
TMR 3-4821WI
+5 VDC
300 mA
–5 VDC
300 mA
79 %
TMR 3-4822WI
+12 VDC
125 mA
–12 VDC
125 mA
81 %
TMR 3-4823WI
+15 VDC
100 mA
–15 VDC
100 mA
81 %
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November 27, 2020
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Input Current
- At no load
12 Vin models:
40 mA typ.
24 Vin models:
25 mA typ.
48 Vin models:
15 mA typ.
- At full load
12 Vin models:
340 mA max.
24 Vin models:
170 mA max.
48 Vin models:
85 mA max.
Surge Voltage
12 Vin models:
36 VDC max. (100 ms max.)
24 Vin models:
50 VDC max. (100 ms max.)
48 Vin models:
100 VDC max. (100 ms max.)
Recommended Input Fuse
(The need of an external fuse has to be assessed
in the final application.)
Input Filter
Internal Capacitor
Input Specifications
Voltage Set Accuracy
±1% max.
Regulation
- Input Variation (Vmin - Vmax)
single output models:
0.2% max.
dual output models:
0.2% max.
- Load Variation (5 - 100%)
single output models:
0.5% 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
30 mVp-p max.
Capacitive Load
- single output
3.3 Vout models:
3'300 µF max.
5 Vout models:
1'680 µF max.
12 Vout models:
820 µF max.
15 Vout models:
680 µF max.
- dual output
5 / -5 Vout models:
1'000 / 1'000 µF max.
12 / -12 Vout models:
470 / 470 µF max.
15 / -15 Vout models:
330 / 330 µF max.
Minimum Load
Not required
Temperature Coefficient
±0.02 %/K max.
Start-up Time
30 ms typ.
Short Circuit Protection
Continuous, Automatic recovery
Transient Response
- Response Time
250 µs typ. (25% Load Step)
Output Specifications
Safety Standards
- IT / Multimedia Equipment
EN 60950-1
EN 62368-1
IEC 60950-1
IEC 62368-1
UL 60950-1
UL 62368-1
- Certification Documents
www.tracopower.com/overview/tmr3wi
Safety Specifications
EMI Emissions
- Conducted Emissions
EN 55032 class A (with external filter)
EN 55032 class B (with external filter)
- Radiated Emissions
EN 55032 class A (with external filter)
EN 55032 class B (with external filter)
External filter proposal:
www.tracopower.com/overview/tmr3wi
EMC Specifications
TMR 3WI Series, 3 Watt
All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.
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November 27, 2020
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EMS Immunity
- Electrostatic Discharge
Air:
EN 61000-4-2, ±8 kV, perf. criteria A
Contact:
EN 61000-4-2, ±6 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, ±1 kV, perf. criteria A
Ext. input component:
Nippon chemi-con KY, 100 µF / 110 mOhm
- 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
Relative Humidity
95% max. (non condensing)
Temperature Ranges
- Operating Temperature
–40°C to +85°C
- Case Temperature
+100°C max.
- Storage Temperature
–55°C to +125°C
Power Derating
- High Temperature
3.3 %/K above 70°C
Cooling System
Natural convection (20 LFM)
Remote Control
- Current Controlled Remote
On: open circuit
Off: 2 to 4 mA current (internal 1 kΩ resistor)
External circuit proposal:
www.tracopower.com/info/current-remote.pdf
- Off Idle Input Current
2.5 mA max.
Altitude During Operation
5'000 m max.
Switching Frequency
100 kHz min. (RCC)
Insulation System
Functional Insulation
Isolation Test Voltage
- Input to Output, 60 s
1'600 VDC
Isolation Resistance
- Input to Output, 500 VDC
1'000 MΩ min.
Isolation Capacitance
- Input to Output, 100 kHz, 1 V
200 pF max.
Reliability
- Calculated MTBF
3'400'000 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)
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
Connection Type
THD (Through-Hole Device)
Weight
4.8 g
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
General Specifications
Supporting Documents
Overview Link (for additional Documents)
www.tracopower.com/overview/tmr3wi
TMR 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
November 27, 2020
Page 3 / 4
Outline Dimensions
TMR 3WI Series, 3 Watt
Bottom view
3.2
(0.13)
0.5
(0.02)
0.25
(0.01)
2.54
2.0 2.54
21.8
5.08 2.54
0.5
(0.02)
11.1
(0.44)
(0.1) (0.1) (0.1)
(0.08 (0.2)
4.0
2.54
(0.1)
2.54
(0.1)
(0.86)
(0.16)
9.2
(0.36)
1 2 3 5 6 7 8
Dimensions in mm (inch)
Pin diameter
Tolerances
Pin pitch tolerance
Ø 0.5 ±0.05 (0.02 ±0.002)
±0.5 (±0.02)
±0.2 (±0.008)
NC: No Connection
Pinout
Pin Single Output Dual Output
1–Vin (GND) –Vin (GND)
2+Vin (Vcc) +Vin (Vcc)
3Remote Remote
5NC NC
6+Vout +Vout
7–Vout Common
8NC –Vout
© Copyright 2020 Traco Electronic AG Specifications can be changed without notice.
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Rev. November 27, 2020
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