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SS1102EUA Folha de dados(PDF) 5 Page - SEC Electronics Inc. |
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SS1102EUA Folha de dados(HTML) 5 Page - SEC Electronics Inc. |
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5 / 7 page  SS1102 Unipolar Hall Switch-Low Sensitivity 5 V2.00 May 1, 2012 Application Comments For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the VDD and ground pin. For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the VDD pin. When using a resistor, three points are important: - the resistor has to limit the reverse current to 50mA maximum (VCC / R1(≈50mA) - the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1 ∙I DD) - the resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC 2/ R1) When using a diode, a reverse current cannot flow and the voltage drop is almost constant (≈0.7V). Therefore, a 100 Ω/0.25W resistor for 5V application and a diode for higher supply voltage are recommended. Both solutions provide the required reverse voltage protection. When a weak power supply is used or when the device is intended to be used in noisy environment, it is recommended that figure above is used. The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occurring on the device supply voltage VDD. The diode D1 provides additional reverse voltage protection. ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. |
Nº de peça semelhante - SS1102EUA |
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Descrição semelhante - SS1102EUA |
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