400W isolated DC-DC converter Wide input and regulated single output
400W isolated DC-DC converter Wide input and regulated single output
Descriptions
VCF48_QBO-40W(F/H)R3 series is a high-performance product designed for the field of communication powers up.The DC-DC converters feature 40W output power with no requirement for minimum load, wide input voltage from 36-75VDC, and allowing operating temperature as hige as 85C. Addtional product features include input under-voltage protection, output over-voltage, over-current, short-circuitandover-temperature protection,remote On/Off control,remote sense compensation,output voltage trim adjustment.The products meet CLASB of CISPR32/EN5032 standards by ading there commended external components,and they are widely used in applications such as battery power suplies, industrial control,electricity,instruments,communication and inteligent robotic.
FEATURES
- Wide input voltage range: 36-75VDC
- High efficiency up to 95%
- Basic insulation, I/O isolation test voltage 2250VDC
- Operating ambient temperature range -40C to +85C
- Input under-voltage protection, output
- over–voltage, over-current, short-circuit,over-temperature protection
- Industry standard 1/4-Brick package and pin-out
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- Meet EN62368 standards
Specifications
| Selection Guide | ||||||||
| Certification | Part No.① | Input Voltage (VDC) | Output | Full Load Efficiency(%) Min./Typ. | Max. Capacitive Load(µF) | Min. Capacitive Load③(µF) | ||
| Nominal (Range) | Max.② | Voltage (VDC) | Current (mA) (Max./Min.) | |||||
-- | VCF4812QBO-400W(F/H)R3 |
48 (36-75) | 80 | 12 | 33000/0 | 93/95 | 10000 | 470 |
| VCF4815QBO-400W(F/H)R3 | 15 | 26500/0 | 93/95 | 6800 | 470 | |||
| VCF4824QBO-400W(F/H)R3 | 24 | 16500/0 | 93/95 | 3300 | 470 | |||
| VCF4828QBO-400W(F/H)R3 | 28 | 14200/0 | 93/95 | 3300 | 470 | |||
Note: ①Use“F”suffix is for added aluminum baseplate and“H”suffix for heat sink mounting. We recommend to choose modules with a heat sink for enhanced heat dissipation and applications with extreme temperature requirements; ②Exceeding the maximum input voltage may cause permanent damage; ③In order to ensure the output stability, a minimum capacitive load must be connected to the output side of the product. | ||||||||
| Input Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
Input Current(Full load/no load) |
Nominal input voltage | VCF4812QBO-400W(F/H)R3 | -- | -- | 8961/ 120 |
A |
| VCF4815QBO-400W(F/H)R3 | -- | -- | 8961/ 150 | |||
| VCF4824QBO-400W(F/H)R3 | -- | -- | 8961/ 120 | |||
| VCF4828QBO-400W(F/H)R3 | -- | -- | 8961/ 150 | |||
| Reflected Ripple Current | Nominal input voltage | -- | 200 | -- | ||
| Surge Voltage (1sec. max.) | -0.7 | -- | 90 |
VDC | ||
| Start-up Voltage | -- | -- | 36 | |||
| Input Under-voltage Protection | 32 | 33 | -- | |||
| Start-up Time | Nominal input voltage, Constant resistance load | -- | -- | 100 | ms | |
| Input Filter | LC filter | |||||
| Hot Plug | Unavailable | |||||
| Mechanical Specifications | ||
| Case Material | Aluminum alloy case | |
Dimension | VCF48_QBO-400WR3 | 57.9 x 36.8 x 12.9 mm |
| VCF48 QBO-400WHR3 | 57.9 x 36.8 x 25.6 mm | |
| VCF48_QBO-400WFR3 | 62.0 x 56.0 x 14.7 mm | |
Weight | VCF48_QBO-400WR3 | 71.4g(Typ.) |
| VCF48_QBO-400WHR3 | 102.8g(Typ.) | |
| VCF48_QBO-400WFR3 | 91.4g(Typ.) | |
| Cooling Method | Free air convection or forced air convection | |
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