Description
The DC/DC converter is used to increase the DC input voltage to a stabilized output voltage of 28 V DC. It is intended for power supply systems, industrial applications and mobile technology, where high current carrying capacity, robust mechanical design and protective functions for operation in more demanding conditions are required.
Technical specifications
Type: non-isolated DC/DC converter
Input voltage: 10-20V DC
Rated input voltage: 12 V DC
Output voltage: 28V DC
Output voltage range: 27.5-28.6V
Maximum output current: 20 A
Output power: 560W
Efficiency: 95.7% at Vin = 12 V, Iout = 20 A
Control accuracy: ±2%
Line regulation: ±1%
Load regulation: ±1%
Quiescent current without load: 100120 mA at Vin = 12 V
Input undervoltage shutdown: 8.89.3 V
Undervoltage recovery: 9.9-10.3 V
Output overcurrent protection: 2837 A at Vin = 12 V
Output Ripple and Noise: 368450 mVp-p
Output voltage rise time: 73120 ms
Start delay: 78-120 ms
Output voltage overshoot: max. 3%
Overheating protection: intervention at housing temperature up to 98 °C
Cooling method: natural cooling
Switching frequency: 80 ±10 kHz
Operating ambient temperature: -40 to +55 °C
Housing temperature: -40 to +80 °C
Storage temperature: -55 to +100 °C
Operating humidity: 5-95% non-condensing
Maximum altitude: 4000 m
Protection: IP67
Insulation resistance input/housing and output/housing: minimum 10 M at test voltage 500 V
Input/housing and output/housing resistance: minimum 500 V
Dimensions: 140 × 120 × 42.5 mm
Weight: 1.2 kg
MTBF: minimum 200,000 h at Vin = 12 V, Iout = 20 A
Functions and features
Non-isolated design between input and output
Synchronous rectification
Single output version
Stable output current at full load
Integrated input undervoltage protection with automatic recovery
Integrated overcurrent protection with automatic restart after fault clearance
Integrated overheating protection
Built-in fuse on positive input 90 A
Support for remote on/off via EN input in versions equipped with this function
Natural heat dissipation through the ribbed metal cover
No external output capacity required
Input and output terminal connection
Ideal for
Industrial power systems
Alternative energy systems
Vehicles and handling equipment
Electric drives and electric motors
Telecommunications technology
Ship and on-board installations
Power supply for LED systems
Package contents
DC/DC converter WG-12S2825M
Installation and operating instructions
Ensure reliable connection of input and output wires to the inverter terminals.
For longer lines, it is necessary to select conductors with an appropriate cross-section due to voltage drop and current load.
For this step-up converter, it is advisable to place the longer cable on the input side for longer cable runs.
For reliable operation, it is necessary to ensure sufficient air flow and heat dissipation from the surface of the housing.
It is advisable to monitor the temperature of the inverter in the area of the center of the base of the housing.
Installation must respect the operating temperature range and cooling requirements.
Safety notice
The device is an electrical power converter with high input and output currents. Improper wiring may cause a short circuit, overheating of the wires, or damage to the device.
Since it is a non-isolated converter, the input and output are not galvanically separated. This feature must be taken into account when designing the entire system.
The output must not be short-circuited. The documentation states that the boost converter does not have protection against permanent short-circuiting at the output.
Installation must be carried out with the power disconnected.
The cover becomes hot during operation. Contact with heat-sensitive materials must be avoided and sufficient cooling must be ensured.
Assembly and wiring should be performed by a person with knowledge of DC power systems and power electronics.
Why choose this product?
Clearly specified conversion from 10-20 V DC to 28 V DC
High output current capacity up to 20 A
Stated efficiency 95.7% under defined conditions
Robust design with passive cooling and IP67 protection
Integrated protection against undervoltage, overcurrent and overheating
Compact dimensions considering the performance class
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