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TLE8201R データシート(PDF) 35 Page - Infineon Technologies AG |
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TLE8201R データシート(HTML) 35 Page - Infineon Technologies AG |
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35 / 45 page ![]() TLE 8201R Data Sheet Rev. 2.0 35 2006-06-07 4.6 Power-Outputs 8 - 11 (Lamp drivers) Outputs 8 - 11 are a high-side switches intended to drive ohmic loads 5W or 10W lamp (bulb) loads. 4.6.1 Protection and Diagnosis 4.6.1.1 Short Circuit of Output to Ground The high-side switches are protected against short to GND. The high-side switches Out 8 - 11 are protected against short to GND. Short Circuit during switch-on During switch-on of an output a current an voltage level is used to check for a short circuit. If a switch is turned on and the short circuit condition is valid after t dSDon8 the output transistor is turned off and the corresponding diagnosis bit is set. A short circuit condition is valid if the current rises above the shutdown threshold I SD8 and the voltage at the output stays below VSD8. During the delay time, the current is limited to ISC8 as shown in Figure 16 Figure 16 Short circuit protection during switch-on tdSDon8 ISC8 ISD8 I OUT OUT 8...11 short toGND t V OUT V SD8 V OUT I OUT |
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