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BTS3028SDL Datasheet(PDF) 10 Page - Infineon Technologies AG |
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BTS3028SDL Datasheet(HTML) 10 Page - Infineon Technologies AG |
10 / 22 page Datasheet 10 Rev. 1.0, 2009-12-06 HITFET - BTS3028SDL Smart low side power switch Input and Power Stage 5 Input and Power Stage 5.1 Input Circuit Figure 5 shows the input circuit of the BTS3028SDL. The Zener Diode ZD protects the input circuit against ESD pulses. The internal circuitry is powered via the input pin. During normal operation the Input is connected to the Gate of the power MOSFET. During fault condition the device sinks the current I IN(fault) to give the fault information back to the driving circuit. The current handling capability of the driving circuit does not influence the device behavior as long as the supply current I IN is supplied. Figure 5 Input Circuit The following Figure shows the typical input threshold voltage of BTS3028SDL. Figure 6 Typical Input Threshold Voltage V inth = f(TJ); ID = 1.2mA , VD = VIN The following Figure shows the typical transfer characteristic of BTS3028SDL. Input .emf Source ZD IN IIN Gate Fault condition IINf I IS Logic 0,50 0,75 1,00 1,25 1,50 1,75 -50 -25 0 25 50 75 100 125 150 T [°C] Vinth_3028.emf |
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