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TDA7377G-J15-A-T Datasheet(PDF) 8 Page - Unisonic Technologies |
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TDA7377G-J15-A-T Datasheet(HTML) 8 Page - Unisonic Technologies |
8 / 10 page TDA7377 LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 8 of 10 www.unisonic.com.tw QW-R107-064.C TYPICAL APPLICATION INFORMATION Diagnostics Facility note: UTC TDA7377 built in a diagnostic circuitry, when following events appearing: clipping in the output signal, thermal shutdown, and output fault including short to GND, short to VS and soft short at turn on. When the event is detected, The information is available across an open collector output (pin 10) through a current sinking (see Fig 4).The current sinking at pin 10 is triggered when a certain distortion level is reached at any of the outputs. This function allows gain compression possibility whenever the amplifier is overdriven. The current sinking at pin 10 also can be triggered When the IC’s operating temperature raise to about 10°C before the shutdown threshold. Normally the clip detector signaling produces a low level at pin 10 that is shorter than that present under faulty conditions; This can be used to discriminate each event (clipping detection, output fault, thermal proximity). UTC TDA7377 10 R VREF VPIN 10 Figure 4. Pin10 Diagnostic Circuitry |
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