DC-Transformer 142E-13.8-SD
Key figures
- ultrawide input voltage range: 16 ... 70 VDC
- very high efficiency: up to 96%
- peak input voltage: 75 VDC
- output voltage / max. output current: 13.8 VDC / 15.0 ADC
Applications
DC/DC step-down converter for 24VDC, 48VDC and 57VDC systems with CC-CV charging characteristics. This Demke converter is optimised for 48V low-voltage networks and can be supplied by 57V Li-Ion battery systems with sufficient reserves. The still very high output current or short-circuit current of 15A is designed for 12V consumer and 13.8V battery charging applications. The flat and compact design with a specific power of 1.25Watt/gram is ideal for space-critical applications. News article available.
Features
- non-isolated DC/DC buck converter
- robust and climate proof design
- excellent thermal characteristics
- permanently no-load and short-circuit proof
- integrated EMI input and output filter
- no power derating
- for ambient temperatures between -40°C / +85°C
- thermal shutdown at +90°C
- CC/CV charging characteristic
Take away
Product Family
| DC-Transformer | Input | Output | Power |
|---|---|---|---|
| 105-3.3 | 6 ... 36 VDC | 3.3 VDC / 1.5 ADC | 5 W |
| 105-5.0 | 7 ... 36 VDC | 5.0 VDC / 1.2 ADC | 6 W |
| 141LE-13.8-ON | 16 ... 36 VDC | 13.8 VDC / 16.0 ADC | 220 W |
| 142E-13.8-SD | 16 ... 70 VDC | 13.8 VDC / 15.0 ADC | 200 W |
| 145-12-SD | 16 ... 100 VDC | 12.0 VDC / 12.0 ADC | 150 W |
| 145-19-SD | 21 ... 100 VDC | 19.0 VDC / 10.0 ADC | 190 W |
| 145-24 | 26 ... 100 VDC | 24.0 VDC / 10.0 ADC | 240 W |
| 145E-13.8-SD | 16 ... 100 VDC | 13.8 VDC / 12.0 ADC | 160 W |
| 145E-29-SD | 32 ... 100 VDC | 29.0 VDC / 8.5 ADC | 250 W |
| 145E1-27.5-SD | 30 ... 100 VDC | 27.5 VDC / 8.0 ADC | 220 W |
| 151DH-13.8-ON | 17 ... 58 VDC | 13.8 VDC / 20.0 ADC | 280 W |
| 154-24 | 28 ... 160 VDC | 24.0 VDC / 13.0 ADC | 300 W |
| 154C-24 | 28 ... 160 VDC | 24.0 VDC / 13.0 ADC | 300 W |
| 154DH-12-ON | 16 ... 160 VDC | 12.5 VDC / 17.0 ADC | 200 W |
| 154DH-13.8-ON | 16 ... 160 VDC | 13.8 VDC / 15.0 ADC | 200 W |
| 154DH-24-ON | 28 ... 160 VDC | 24.0 VDC / 13.0 ADC | 300 W |
| 154DH-27-ON | 29 ... 160 VDC | 27.0 VDC / 13.0 ADC | 350 W |
| 154DH-48-ON | 50 ... 160 VDC | 48.0 VDC / 10.0 ADC | 480 W |
| 162E-13.8-ON | 16 ... 70 VDC | 13.8 VDC / 20.0 ADC | 275 W |
| 172E-13.8-ON | 18 ... 70 VDC | 13.8 VDC / 60.0 ADC | 830 W |