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BTS6142D Datasheet(PDF) 10 Page - Infineon Technologies AG |
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BTS6142D Datasheet(HTML) 10 Page - Infineon Technologies AG |
10 / 15 page Smart High-Side Power Switch BTS 6142D Power Stages Data Sheet 10 V1.1, 2007-02-28 4 Block Description and Electrical Characteristics 4.1 Power Stages The power stage is built by a N-channel vertical power MOSFET (DMOS) with charge pump. 4.1.1 Input Circuit Figure 4 shows the input circuit of the BTS 6142D. The current source to Vbb ensures that the device switches off in case of open input pin. The zener diode protects the input circuit against ESD pulses. IN Rbb I V bb Input.emf VZ,IN VIN I IN V bIN Figure 4 Input Circuit A high signal at the required external small signal transistor pulls the input pin to ground. A logic supply current IIN is flowing and the power DMOS switches on with a dedicated slope, which is optimized in terms of EMC emission. VOUT t SwitchOn.emf t IIN 10% 25% 50% 90% tON tOFF dV/dtON dV/dtOFF Figure 5 Switching a Load (resistive) |
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