400W DC/DC Converter : DFB400
DFB400 - 400 Watts DC-DC Converter with Isolation
Description
DC-DC Converter- Isolation - Module
400W Isolated Full-Brick Size DC/DC Converter Meet Industry Standard.Features
- Efficiency up to 90%<
- Fixed Switching Frequency
- Input Under Voltage Protection
- Fully protected (OTP/OVP/OCP)
- Remote On/Off
- Full-Brick Size Meet Industry Standard
- Fully Isolated 1500VDC
Specification
| Input Voltage Range | 24Vin Range: 9~36Vdc ; 48Vin Range: 18~75Vdc |
| Under voltage Lockout | 24Vin power up 8.5V, power down 7.5V 48Vin power up 17V, power down 15V |
| Input Over Voltage Protection | 24Vin Turn Off...42V, Turn On...40V 48Vin Turn Off...83V, Turn On...80V |
| Input Filter | LC Type |
| Voltage Accuracy | ± 1% max |
| Transient Response | 25% step load change < 500us |
| External Trim Adj. Range |
80-110% |
| Load Share Accuracy | ±10% at 50% to 100% full load |
| Auxiliary Output Voltage/Current | 10±3Vdc/20mA max. |
| R&N (20MHz bandwidth) | 5V ....... 40mV RMS max., 100mV pk-pk max. 12V ..... 60mV RMS max., 120mV pk-pk max. 24V ... 100mV RMS max., 240mV pk-pk max. 28V ... 100mV RMS max., 280mV pk-pk max. 48V ... 120mV RMS max., 480mV pk-pk max. |
| Temperature Coefficient | ± 0.03% / °C max. |
| Short Circuit Protection | Continuous |
| Line Regulation | ± 0.2% max |
| Load Regulation | ± 0.5% max. |
| O.V.P. Trip Range, % Vo nom. | 115-140% |
| Current Limit | 110%-150% nominal output |
| Set up time | 120ms typ. |
| Isolation Voltage | Input/Output ... 1500VDC min. Input/Case ...... 1500VDC min. Output/Case .... 1500VDC min. |
| Isolation Resistance | 107 ohm min. |
| Isolation Capacitance | 4000pF Typ. |
| Switching Frequency | 230 KHz Typ. |
| Operating Case Temperature | -40°C to 100°C |
| Storage Temperature | -55°C to 115°C |
| Thermal Shutdown, Case Temp. | 110°C Typ. |
| Humidity | 95% RH max. non condensing |
| MTBF | MIL-HDBK-217F, GB, 25°C, full load ; 340Khrs typ. |
| Case Material | Aluminum baseplate with plastic case |
| Dimensions | L4.6xW2.4xH0.50 inches (116.8x61.0x12.7mm) |
| Weight | 220g |
Model
| Model No. | I/P Vol. | O/P Vol. | O/P Current | O/P Watts (max.) |
| DFB400-41x | 9-36V | 5.00 VDC | 80A | 400W |
| DFB400-42x | 9-36V | 12.0 VDC | 33.3A | 399.6W |
| DFB400-49x | 9-36V | 24.0 VDC | 16.7A | 400.8W |
| DFB400-49Cx | 9-36V | 28.0 VDC | 14.3A | 400.4W |
| DFB400-49Bx | 9-36V | 48.0 VDC | 8.30A | 398.4W |
| DFB400-51x | 18-75V | 5.00 VDC | 80A | 400W |
| DFB400-52x | 18-75V | 12.0 VDC | 33.3A | 399.6W |
| DFB400-59x | 18-75V | 24.0 VDC | 16.7A | 400.8W |
| DFB400-59Cx | 18-75V | 28.0 VDC | 14.3A | 400.4W |
| DFB400-59Bx | 18-75V | 48.0 VDC | 8.30A | 398.4W |
Notices：
- x = blank stands for Remote On/Off Logic Negative
x = P stands for Remote On/Off Logic Positive - Nominal Input Voltage 24, 48VDC.
Measured at Nominal Input Voltage.
Measured at 12VDC for 24Vin, 24VDC for 48Vin. - The output terminal of 5V Vout models required a minimum capacitor 680uF to maintain specified regulation.
The output terminal of 12/24/28V Vout models required a minimum capacitor 330uF to maintain specified regulation.
The output terminal of 48V Vout models required a minimum capacitor 100uF to maintain specified regulation. - An external input capacitor 1000uF for 24Vin or 330uF for 48Vin models are recommeded to reduce input ripple voltage.
- If the remote sense feature is not to be used, the +sense pin should be connectoed to the +Vout pin and the -sense pin should be connected to the -Vout pin.
Mechanical Drawing (Unit: mm)
