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BTS50020-1TAD Scheda tecnica(PDF) 21 Page - Infineon Technologies AG |
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BTS50020-1TAD Scheda tecnica(HTML) 21 Page - Infineon Technologies AG |
21 / 51 page Data Sheet 21 Rev. 1.1 2017-03-28 BTS50020-1TAD Smart High-Side Power Switch Functional Description 5.2 Input Pins 5.2.1 Input Circuitry The input circuitry is compatible with 3.3 V and 5 V microcontrollers or can be directly driven by VS. The concept of the input pin is to react to voltage threshold. With the Schmitt trigger, the output is either ON or OFF. Figure 15 shows the electrical equivalent input circuitry. Figure 15 Input Pin Circuitry 5.2.2 Input Pin Voltage The IN uses a comparator with hysteresis. The switching ON / OFF takes place in a defined region, set by the threshold VIN(L)Max and VIN(H)Min. The exact value where ON and OFF take place depends on the process, as well as the temperature. To avoid cross talk and parasitic turn ON and OFF, an hysteresis is implemented. This ensures immunity to noise. 5.3 Protection Functions The device provides embedded protective functions. Integrated protection functions are designed to prevent the destruction of the IC from fault conditions described in the Data Sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are designed neither for continuous nor for repetitive operation. Figure 16 describes the typical functionality of the diagnosis and protection block. IN IIN RVS VS GND |
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