# R-521.8PA डेटा पत्रक PDF( Datasheet डाउनलोड )

## डेटा पत्रक - DC/DC-Converter - RECOM

 भाग संख्या R-521.8PA समारोह DC/DC-Converter मैन्युफैक्चरर्स RECOM लोगो पूर्व दर्शन 1 Page ``` R-5xxxPA_DA DC/DC Converter Specifications (refer to standard application circuit, Ta= 25°C) Series BASIC CHARACTERISTICS Parameter Quiescent Current Internal Power Dissipation Output Current Limit Minimum Load ON/OFF CTRL (4) Input Current of CTRL Pin Internal Operating Frequency Output Ripple and Noise Maximum Capacitive Load Condition min. Vin to max. ta<60°C R-52xx R-53xx R-54xx R-55xx DC-DC ON DC-DC OFF DC-DC OFF R-52xx R-53xx & R-54xx & R-55xx normal start-up time, no external diodes <1 second start-up time + diode protection circuit Min. 10% 270kHz Typ. 2.5A 3.75A 5.0A 6.0A Max. 20mA 1.4W 3.0A 4.25A 5.5A 6.5A Open or high, 4.5V min. / 18V max. Low (Power OFF) 0.8V max. 100µA 300kHz 330kHz 40mVp-p 80mVp-p 70mVp-p 120mVp-p 300µF 6800µF Notes: Note4: ON/OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET How to calculate the max output current The internal power dissipiation (PD ) follows the equation: PD= Iout x Vout x (1-Effmax Vin ) Iout= PD Vout x (1-Effmax Vin ) 100 85 80 60 40 20 Example: R-545.0P Calculation 1: Vin = 18V Vout = 5V Effmax Vin = 93% PD = 1.4W TAmbient = 60°C Iout= 1.4W 5V x (1-0.93 ) = 4.0A 0 0 0.5 1 1.4 Internal Power Dissipation [W] Calculation 2: Vin = 18V Vout = 5V Effmax Vin = 93% PD = 1W TAmbient = 85°C Iout= 1W 5V x (1-0.93 ) = 2.857A www.recom-power.com Calculation 3: Vin = 12V Effmax Vin = 94% PD = 1.0W TAmbient = 85°C Iout= 1W 5V x (1-0.94 ) continued on next page REV.: 4/2018 = 3.33A I-2 ``` विन्यास 8 पेज डाउनलोड [ R-521.8PA Datasheet.PDF ]

### अनुशंसा डेटापत्रक

 भाग संख्या विवरण विनिर्माण R-521.8PA DC/DC-Converter RECOM

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