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SI-8921L Fiches technique(PDF) 4 Page - Sanken electric |
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SI-8921L Fiches technique(HTML) 4 Page - Sanken electric |
4 / 5 page 105 sTa-PD Characteristics sCaution 1. A low-impedance capacitor suitable for switching applications must be used for the external capacitor and must be connected as close to the IC as possible in order to assure low ripple voltage and stable switching operation. 2. The SI-881L/8911L series does not have a built-in overcurrent protection circuit on terminal VO2(–5V). Thus, avoid short-circuit conditions that may cause an overcurrent. 3. Do not connect VIN(–) of SI-8811L to GND. The overcurrent protection circuit may not work if they are connected. 4. Terminals left unconnected in the connection diagram must not be connected to other circuits. 5. The IC's metallic heatsink is electrically floating. Do not connect it to GND or any other circuit. 6. Since the SI-8800L and 8900L series have an open-package construction, they can be operated in specific environments. Verify the operating environment and use the IC within the conditions indicated in the reliability data. 1.5 1.0 0.5 0 025 50 Ambient Temperature Ta ( °C) 75 100 SI-8811L SI-8911L SI-8921L 1.5 1.0 0.5 0 025 50 Ambient Temperature Ta ( °C) 75 100 8922L qSI-8800L/8900L Series VO :Output voltage IO :Output current ηχ :Efficiency (%) The efficiency depends on the input voltage and the output current.Thus, obtain the value from the efficiency graph and substitute the percentage in the formula above. PD=VO•IO 100 –1 ηχ |
Numéro de pièce similaire - SI-8921L |
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Description similaire - SI-8921L |
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