The **MGFS304805-R** is a high-reliability, isolated DC-DC converter manufactured by **Cosel**. It belongs to the MGFS series, which is specifically designed for space-saving applications requiring high efficiency and wide input voltage ranges. --- ### 1. Key Technical Specifications The model name follows a specific nomenclature that defines its core parameters: | Parameter | Specification | |:---|:---| | **Input Voltage Range** | 18V to 76V DC (Wide 4:1 range) | | **Output Voltage** | 5V DC | | **Output Current** | 6.0 Amps | | **Total Power** | 30 Watts | | **Efficiency** | 89% (Typical) | | **Isolation Voltage** | 1,500V DC (1 minute) | | **Package Style** | 1" x 1" Industry Standard Footprint | --- ### 2. Physical and Design Features * **Compact Footprint:** It uses a high-density 1" x 1" design, significantly reducing board space compared to older 30W converters. * **Protection Circuitry:** * **Overcurrent Protection (OCP):** Automatically recovers when the fault is removed. * **Overvoltage Protection (OVP):** Protects the load from voltage spikes. * **Thermal Protection:** Shuts down the unit if internal temperatures exceed safety limits. * **Six-Sided Shielding:** The unit is encased in a metal shield to minimize Electromagnetic Interference (EMI). --- ### 3. Pin Configuration and Functions The MGFS304805-R typically features the following pins: | Pin Number | Name | Function | |:---:|:---|:---| | 1 | +VIN | Positive Input Voltage | | 2 | -VIN | Negative Input Voltage | | 3 | RC | Remote Control (ON/OFF) | | 4 | +VOUT | Positive Output Voltage | | 5 | TRM | Output Voltage Trimming (Adjustment) | | 6 | -VOUT | Negative Output Voltage | --- ### 4. Implementation Details #### Remote ON/OFF (RC Pin) The device can be controlled externally. By applying a signal to the RC pin relative to the -VIN, the converter can be powered down into a low-power standby mode without disconnecting the main input. #### Output Trimming (TRM Pin) Users can adjust the output voltage (typically $\pm10\%$) by connecting an external resistor between the TRM pin and either the +VOUT or -VOUT pins. This is useful for compensating for voltage drops in long PCB traces. ---