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DC/DC Converters
TDR 2WI Series, 2 Watt
Features
◆ Compact design in SMD or DIP package
◆ Ultra wide 4:1 input voltage range
◆ Fully regulated outputs
◆ Low ripple and noise 30mV pk-pk
◆ No minimum load required
◆ Temperature range –40°C to +85°C
without derating
◆ I/O isolation 1600 VDC
◆ Continuous short-circuit protection
◆ Remote On/Off control
◆ Fully RoHS compliant
◆ 3-year product warranty
The TDR-2WI series is a family of compact 2 W dc/dc-converters with 4:1 input
voltage ranges and tightly regulated output voltages even under no load conditions.
The product is available in SMD-package or in DIP-package. They work with high
efficiency over the full load range and come with a remote On/Off input.
The usability in temperature ranges of up to 85°C without power derating, continu-
ous short circuit protection and excellent immunity against environmental influences
make these converters very reliable.
A TDR-2WI converter is the ideal solution for space critical high end applications in
communication equipment, instrumentation and industrial electronics.
Order code
DIP models
Order code
SMD models Input voltage range Output voltage Output current
max. Efficiency typ.
TDR 2-1211WI TDR 2-1211WISM 5.0 VDC 400 mA 79 %
TDR 2-1212WI TDR 2-1212WISM 12 VDC 167 mA 80 %
TDR 2-1213WI TDR 2-1213WISM 4.5 – 18 VDC 15 VDC 134 mA 81 %
TDR 2-1222WI TDR 2-1222WISM (12 VDC nominal) ±12 VDC ±83 mA 81 %
TDR 2-1223WI TDR 2-1223WISM ±15 VDC ±67 mA 81 %
TDR 2-2411WI TDR 2-2411WISM 5.0 VDC 400 mA 79 %
TDR 2-2412WI TDR 2-2412WISM 12 VDC 167 mA 80 %
TDR 2-2413WI TDR 2-2413WISM 9 – 36 VDC 15 VDC 134 mA 82 %
TDR 2-2422WI TDR 2-2422WISM (24 VDC nominal) ±12 VDC ±83 mA 81 %
TDR 2-2423WI TDR 2-2423WISM ±15 VDC ±67 mA 81 %
TDR 2-4811WI TDR 2-4811WISM 5.0 VDC 400 mA 78 %
TDR 2-4812WI TDR 2-4812WISM 12 VDC 167 mA 81 %
TDR 2-4813WI TDR 2-4813WISM 18 – 75 VDC 15 VDC 134 mA 82 %
TDR 2-4822WI TDR 2-4822WISM (48 VDC nominal) ±12 VDC ±83 mA 81 %
TDR 2-4823WI TDR 2-4823WISM ±15 VDC ±67 mA 81 %
Models
UL 60950-1
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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
TDR 2WI Series 2 Watt
Input Specifications
Input current at no load (nominal input voltage) 12 Vin models: 35 mA typ.
24 Vin models: 20 mA typ.
48 Vin models: 10 mA typ.
Input current at full load (nominal input voltage) 12 Vin models: 215 mA typ.
24 Vin models: 110 mA typ.
48 Vin models: 55 mA typ.
Surge voltage (1 s max.) 12 Vin models: 25 V max.
24 Vin models: 50 V max.
48 Vin models: 100 V max.
EMC emissions EN 55032 class A/B (with external components)
– Application note for filter class A/B proposal www.tracopower.com/overview/tdr2wi
ESD (electrostatic discharge) EN 61000-4-2, air ±8 kV, contact ±6 kV,
perf. criteria A
Radiated immunity EN 61000-4-3 10 V/m, perf. criteriy A
Fast transient / Surge EN 61000-4-4, ±2 kV, perf. criteria A
EN 61000-4-5, ±1 kV perf. criteria A
with external input capacitor e.g. Nippon
chemi-con KY 220 µF, 100 V, ESR 48 mOhm
Conducted immunity EN 61000-4-6, 10 Vrms, perf. criteria A
Power frequency magnetic field EN 61000-4-8, 100 A/m, perf. criteria A
Reflected ripple current 12 Vin models: 80 mAp-p typ.
(measured with input filter according class A) 24 Vin models: 40 mAp-p typ.
48 Vin models: 30 mAp-p typ.
Output Specifications
Voltage set accuracy ±1 % max
Regulation – Input variation Vin min. to Vin max. 0.2 % max.
– Load variation (0 – 100 %) single output models: 1.0 % max.
dual output models: 1.0 % max. balanced load
– Load variation (10 – 90 %) single output models: 0.5 % max.
dual output models: 0.8 % max. balanced load
– Load cross regulation (25 / 100 %) 5.0 % max. (dual output models)
Minimum load 0 % of rated max. load
Temperature coefficient ±0.02 %/K
Ripple and noise (20 MHz bandwidth) 30 mV pk-pk typ.
Start up time – Power On 5 ms typ.
(constant resistive load) – Remote On 5 ms typ.
Transient response setting time (25 % load step change) 250 µs typ.
Short circuit protection continuous, automatic recovery
Capacitive load 5 VDC models: 1680 µF max.
12 VDC models: 820 µF max.
15 VDC models: 680 µF max.
±12 VDC models: 470 µF max. (each output)
±15 VDC models: 330 µF max. (each output)
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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
DC/DC Converters
TDR 2WI Series 2 Watt
General Specifications
Temperature ranges – Operating –40°C to +85°C (with no derating)
– Storage –55°C to +125°C
– Case temperature max. +100°C
Humidity (non condensing) 5 – 95 % rel. H max.
Thermal shock, mechanical shock & vibration EN 61373, MIL-STD-810F
– Test conditions www.tracopower.com/products/mil810.pdf
Reliability, calculated MTBF (MIL-HDBK-217F, at+25°C, ground benign) >6.6 Mio h
Isolation voltage (60 s) – Input/Output 1600 VDC
Isolation capacitance – Input/Output 50 pF max.
Isolation resistance – Input/Output (500 VDC) >1 GOhm
Safety approvals – UL/cUL 60950 -1 www.ul.com -> certifications -> File e188913
– Certification documents www.tracopower.com/overview/tdr2wi
Switching frequency 0.1 ... 2.5 MHz
Remote On/Off – On: open or high impedance
– Off: 2...4 mA current applied via 1kOhm resistor
– Off stand by input current 2.5 mA max.
Environmental compliance – Reach www.tracopower.com/info/reach-declaration.pdf
– RoHS RoHS directive 2011/65/EU
Pysical Specifications
Casing material non-conductive plastic (UL94V-0 rated)
Package weight 4.5 g ( 0.16 oz)
Soldering profile (for DIP models) 265°C / 10 s max. (wave soldering)
Lead-free reflow solder process (for SMD models) J-STD-020D
Moisture sensivity level (for SMD models) J-STD-033C level 2a
Packaging – Tube 10 pcs packing unit
– Tape & Reel (only SMD models, add suffix –TR) 200 pcs packing unit
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Specifications can be changed without notice! Make sure you are using the latest documentation, downloadable at www.tracopower.com
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DC/DC Converters
TDR 2WI Series 2 Watt
Outline Dimensions
Pin Single Dual
1–Vin (GND) –Vin (GND)
2Remote On/Off Remote On/Off
6NC Common
7NC –Vout
8+Vout +Vout
9–Vout Common
14 +Vin (Vcc) +Vin (Vcc)
Pin-Out
Rev. April 17. 2018
Dimensions in [mm], () = Inch
Tolerances: ±0.5 (±0.02)
Pin pich tolerances: ±0.25 (±0.01)
18.9
8.7
12.8
13.55
(0.74)
(0.35)
(0.533)
(0.50)
3.8
(0.15)
0.8(0.03)
1.3(0.05)
top view
14
9
8
1
2
6
7
2.542.54 10.161.8
(0.07)
(0.1) (0.4) (0.1)
0.25 (0.01)
0-15°
2.542.54 10.161.8
18.9
8.7 12.8
17.2
(0.07)
(0.1) (0.4)
(0.74)
(0.35)
(0.68)
(0.50)
(0.1)
1.0 (0.04)
1.5 (0.06)
top view
14
9
8
1
2
6
7
7.4 (0.29)
0.25 (0.01)
0-4°
1.2
(0.05)
DIP-Models
SMD-Models
NC = not to connect
Recommended Solder Pad
Dimension:
18.1 (0.71)
2.542.54 10.161.8
(0.07) (0.1) (0.4) (0.1)
1.8 (0.07)
2.0 (0.08)
