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TDA7572 数据表(PDF) 47 Page - STMicroelectronics |
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TDA7572 数据表(HTML) 47 Page - STMicroelectronics |
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47 / 64 page ![]() TDA7572 Step-up 47/64 Figure 11. Threshold of current limiting diagram The I2C bus register that is set for default to "habilitation" enables the step up. In case of 14V operation or split supply the step-up and no i2c bus mode the step-up is disabled by connects the BSTVSense pin to a reference of at least five volts over VSM. During the testing phase the digital test mode is entered by put Csense pin at least 3V under 14V pin. VV14Sense - VCSense Vlimhmax, Vlimlmax 440mV Vlimhmin 260mV Vlimlmin 120mV Vo 42V 37V AC00023 |
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