Traco Power Introduces Two Series of Isolated DC/DC Converters

The Tel 12 and TEL WI 12 watt DC/DC converter series from Traco feature 2:1 and 4:1 input ranges covering 9 to 75 volts, with outputs of 5.1, 12, ±12, 15, ±15 or 24 VDC

Modified image courtesy of Traco

 

What are 2:1 and 4:1 Input Ranges?

A 2:1 input range converter accepts power ranging from a given voltage to twice that voltage. A 4:1 input range device works with voltages ranging from a given voltage to four times that voltage. 

Members of the TEL 12 series are 2:1 input devices. Individual series members  accept inputs from 9 to 18 volts, 18 to 36 volts, or 36 to 75 volts

Members of the TEL 12WI series are 4:1 input devices. Individual series members  accept inputs from 9 to 36 volts or 18 to 75 volts

These features allow an OEM to stock few power converter models that serve a broader range of design purposes. For example, a converter that can work a 4:1 range of 18 to 75 volts can work with both of the ever more important 24 and 48 VDC input voltage rails.

 

Model Availability for the Tel 12 and for the Tel 12 WI Series

 

The 18 variations of the Tel 12 Series

Image courtesy of Tel 12 Data Sheet

 

The 12 variations of the Tel 12 WI  Series

Image courtesy of the Tel 12 WI Data Sheet

 

For Members of Both Series 

Voltage Set Accuracy is ±1% maximum

Input Current at no load (typical)

• Nominal 12 Vin Models : 20 mA 
• Nominal 24 Vin Models: 10 mA
• Nominal 48 Vin Models: 7 mA

 

Surge Voltage (maximum)

• Nominal 12 Vin models: 25 VDC (1 second, max time) 
• Nominal 24 Vin models: 50 VDC (1 second, max time) 
• Nominal 48 Vin models:100 VDC (1 second, max time)

 

Under Voltage Lockout (typical)

• Nominal 12 Vin models: 8 VDC 
• Nominal 24 Vin models: 16 VDC 
• Nominal 48 Vin models: 34 VDC 

 

Output Specifications - Regulation

   Both Single and dual output units

• Input Variation (Vmin – Vmax): 0.8% maximum
• Load Variation (0 to 100%): 1% Maximum

  Dual output Units    

• Voltage balance with a symmetrical load: 2% maximum
• Cross regulation (25%/100% asymetrical load) 

 

Isolation Test Voltage

• Input to Output: 1500 VDV for 60 seconds
• Input to Output: 1800 VDC for 1 second
• Input to Case: 1000 VDC for 60 seconds
• Output to Case: 1000  VDC for 60 seconds

 

Applications

• Industrial electronics
• Instrumentation
• Information technology

 

Physical Considerations

The devices are all packaged in shielded, six sided encapsulated metal cases with insulated baseplates.

Total package size (L x W x H) is 23.8 by 13.7 by 10.20 mm.

All units weigh 8.6 grams

Full load operation over a temperature range of 40 to +65℃. Series member can operate at 50% capacity at +85℃

 

Regulatory Concerns

Safety

• EN 62368-1
• IEC 62368-1
• UL 62368-1  

EMI Emissions

• Conducted emissions (internal filter): EN 55032 class A, FCC Part 15 class A 
• Radiated emissions (external filter) : EN 55032 class A, FCC Part 15 class A 

 

About TRACO

TRACO Electronic AG is a Swiss company with headquarters based in Baar, Switzerland. As a leading power supply specialist with more than 35 years experience we are dedicated to the design and manufacturing of high quality DC/DC and AC/DC power conversion products. TRACO markets its products worldwide under the registered trademark TRACO Power. Our mission is to provide our customers with optimal power supply solutions in terms of performance, quality and cost for their individual application.