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TDA7350A датащи(PDF) 12 Page - STMicroelectronics |
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TDA7350A датащи(HTML) 12 Page - STMicroelectronics |
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12 / 23 page ![]() TDA7350A 12/23 Figure 30. Block Diagram; Bridge Configuration Figure 31. ICV - PNP Gain vs. IC Figure 32. ICV - PNP VCE(sat) vs. IC Figure 33. ICV - PNP cut-off frequency vs. IC 4.7 OUTPUT STAGE Poor current capability and low cutoff frequency are well known limits of the standard lateral PNP. Composite PNP-NPN power output stages have been widely used, regardless their high saturation drop. This drop can be overcome only at the ex- pense of external components, namely, the boot- strap capacitors. The availability of 4A isolated collector PNP (ICV PNP) adds versatility to the de- sign. The performance of this component, in terms of gain, VCEsat and cut-off frequency, is shown in fig. 31, 32, 33 respectively. It is realized in a new bipolar technology, characterized by topbottom isolation techniques, allowing the implementation |
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