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Polytron MTWA4 Series DC-DC Converters, 3.5 Watt 2:1 Input Range, For Medical Applications
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Price (Each): Call or e-mail for quotes or to order.
Available to Order
Item Number: MTWA4
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Miniature DC-DC Converters For Medical Applications
Our MTWA4 series of DC-DC converters packs a range of features into miniature DIP16 (0.95 x 0.57 x 0.41”) and SMD16 (0.95 x 0.57 x 0.40”) packages to better fit your design. Approved for medical applications, units provide 5,000 Vac input to output 2 MOPP isolation and remote ON/OFF. Their voltage input range (4.5–12 Vdc) is also wider than the standard 4.5–9 Vdc—making them suitable for portable devices. Units feature overvoltage, short circuit and undervoltage protection and meet IEC 60601-1 and RoHS standards.
MTWA4 Series Specification Sheet PDF
Daburn Part
Number |
Input Voltage
(Vdc) |
Output Voltage
(Vdc) |
Output Current at Full Load
(mA) |
Input Current at No Load
(mA) |
Efficiency
(%) |
Max. Capacitor Load
(μF) |
| MTWA4-5S5 |
4.5-12 |
5 |
700 |
70 |
77 |
1470 |
| MTWA4-5S9 |
9 |
389 |
70 |
78 |
680 |
| MTWA4-5S12 |
12 |
292 |
70 |
82 |
470 |
| MTWA4-5S15 |
15 |
234 |
90 |
82 |
330 |
| MTWA4-5S24 |
24 |
146 |
90 |
82 |
170 |
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MTWA4-12S5
|
9-18 |
5 |
700 |
40 |
79 |
1470 |
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MTWA4-12S9
|
9 |
389 |
40 |
79 |
680 |
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MTWA4-12S12
|
12 |
292 |
45 |
82 |
470 |
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MTWA4-12S15
|
15 |
234 |
45 |
82 |
330 |
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MTWA4-12S24
|
24 |
146 |
50 |
82 |
170 |
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MTWA4-24S5
|
18-36 |
5 |
700
|
25 |
79 |
1470 |
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MTWA4-24S9
|
9 |
389 |
25 |
80 |
680 |
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MTWA4-24S12
|
12 |
292 |
25 |
83 |
470 |
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MTWA4-24S15
|
15 |
234 |
25 |
83 |
330 |
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MTWA4-24S24
|
24 |
146 |
30 |
82 |
170 |
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MTWA4-48S5
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36-75 |
5 |
700 |
12 |
79 |
1470 |
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MTWA4-48S9
|
9 |
389 |
12 |
80 |
680 |
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MTWA4-48S12
|
12 |
292 |
13 |
82 |
470 |
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MTWA4-48S15
|
15 |
234 |
13 |
82 |
330 |
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MTWA4-48S24
|
24 |
146 |
13 |
82 |
170 |
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MTWA4-5-12
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4.5-12 |
±12 |
±146 |
90 |
82 |
±220 |
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MTWA4-5-15
|
±15
|
±117 |
95 |
81 |
±160 |
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MTWA4-12-12
|
9-18 |
±12 |
±146 |
50 |
82 |
±220 |
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MTWA4-12-15
|
±15 |
±117 |
50 |
82 |
±160 |
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MTWA4-24-12
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18-36 |
±12 |
±146 |
30 |
82 |
±220 |
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MTWA4-24-15
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±15 |
±117 |
30 |
82 |
±160 |
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MTWA4-48-12
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36-75 |
±12 |
±146 |
13 |
82 |
±220 |
| MTWA4-48-15 |
±15 |
±117 |
13 |
82 |
±160 |
Input and Output Specifications:
INPUT
- Voltage range, Vdc
- 4.5 Min., 5 Typ., 12 Max., 5 Vin (nom)
- 9 Min., 12 Typ., 18 Max., 12 Vin (nom)
- 18 Min., 24 Typ., 36 Max., 24 Vin (nom)
- 36 Min., 48 Typ., 75 Max., 28 Vin (nom)
- Start Up Voltage, Vdc:
- 4.5 Max., 5 Vin (nom)
- 9 Max., 12 Vin (nom)
- 18 Max., 24 Vin (nom)
- 36 Max., 28 Vin (nom)
- Shutdown Voltage, Vdc:
- 2 Min., 3 Typ., 4 Max., 5 Vin (nom)
- 6 Min., 7 Typ., 8 Max., 12 Vin (nom)
- 13 Min., 15 Typ., 17 Max., 24 Vin (nom)
- 29 Min., 32 Typ., 35 Max., 28 Vin (nom)
- Start up time, ms
- 10 Typ., 20 Max., Constant resistive load, Power up, Remote ON/OFF
- Input Surge Voltage, Vdc
- 15 Max., 5 Vin (nom)
- 25 Max., 12 Vin (nom)
- 50 Max., 24 Vin (nom)
- 100 Max., 28 Vin (nom)
- Input Filter: Capacitor type
- Remote ON/OFF, mA
- Open or high impedance: Referred to –Vin pin and Ctrl pin, DC-DC ON
- 2 Min., 3 Typ., 4 Max., Applied current, DC-DC OFF
- 2.5 Typ., Remote OFF input current
OUTPUT
- Voltage Accuracy, %: -1 Min., 1 Max.
- Line Regulation, -0.2 Min., 0.2 Max., Low line to high line at full load
- Load Regulation, %
- -1 Min., 1 Max., No load to full load, Single
- -1 Min., 1 Max., Dual
- -0.5 Min., 0.5 Max., 10% load to 90% load, Single
- -0.8 Min., 0.8 Max., Dual
- Cross regulation, %
- -5 Min., 5 Max., Asymmetrical load 25%/100% FL, Dual
- Ripple and noise, mVp-p (Measured by 20MHz bandwidth)
- 50 Typ., 5Vout
- 50 Typ., 9Vout
- 50 Typ., 12Vout
- 50 Typ., 15Vout
- 75 Typ., 24Vout
- 75 Typ., ±12Vout
- 75 Typ., ±15Vout
- Temperature coefficient, %/ºC: -0.02 Min., 0.02 Max.
- Transient response recovery time, μs: 500 Typ., 25% load step change
- Overvoltage Protection, Vdc
- 6 Min., 8 Max., 5Vout
- 10 Min., 14 Max., 9Vout
- 13 Min., 19 Max., 12Vout
- 16 Min., 22 Max., 15Vout
- 25 Min., 35 Max., 24Vout
- Short Circuit Protection: Continuous, automatic recovery
More Specifications:
GENERAL
- Isolation Voltage, Vac:
- 1 minute, reinforced insulation for 250 Vac working voltage, 5000 Min.
- Isolation capacitance, pF: 16 Typ., 20 Max.
- Leakage currect, μA: 240 Vac, 60 Hz, 2 Max.
- Switching frequency, kHz: 100 Min.
- Clearance/creepage, mm: 8 Min
ENVIRONMENTAL
- Operating ambient temperature, ºC
- With derating: -40 Min.+105 Max.
- Maximum case temperature, ºC: +105 Max.
- Storage temperature range, ºC: -55 Min., +125 Max.
- Operating altitude, m: 5000 Max.
- Thermal shock: MIL-STD-810-F
- Shock: MIL-STD-810-F
- Vibration: MIL-STD-810-F
- Relative Humidity: 5% to 95% RH
- Load-free reflow solder process:
- SMD type only: IPC J-STD-020E
- SMD type only: IPC J-STD-033C, Level 2
PHYSICAL
- Design Meet Safety Standard: EN/IEC/ANSI/AAMI ES60601-1, UL:E360199, EN/IEC/UL 60950-1, 62368-1, UL:E193009, CB:UL(Demko)
- Case Material: Non-conductive black plastic
- Base Material: Non-conductive black plastic
- Potting Material: Silicone, (UL94 V-0)
- Weight: 60g (2.11oz)
- Dimensions:
- 0.95” × 0.57” × 0.40” (24.3 × 14.4 × 10.2 mm), SMD Type
- 0.95” × 0.57” × 0.41”(24.3 × 14.4 × 10.5 mm), DIP Type
- Weight: 7g (0.24oz)
- MTBF: 5.041 × 106 hrs , MIL-HDBK-217F, Full load
EMC CHARACTERISTICS
- EMI: EN55011, EN55032 and FCC Part 18, With external components, Class A, Class B
- ESD: EN61000-4-2, Air ±15KV and Contact ±8KV, Perf. Criteria A
- Radiated immunity: EN61000-4-3, 10V/m, Perf. Criteria A
- Fast Transient: EN61000-4-4, ±2KV, Perf. Criteria A
- Surge: EN61000-4-5, ±1KV, Perf. Criteria A
- Conducted Immunity: EN61000-4-6, 10 Vr.m.s, Perf. Criteria A
- Power Frequency Magnetic Field: EN61000-4-8, 100 A/m continuous; 1000 A/m 1 second, Perf. Criteria A
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