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FQP16N15 датащи(PDF) 10 Page - Tripath Technology Inc. |
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FQP16N15 датащи(HTML) 10 Page - Tripath Technology Inc. |
10 / 34 page Tr i p ath Technol ogy, I n c. - Techni cal I n for m ati on 10 TK2150 – Rev. 1.0/12.02 External Components Description (Refer to the Application/Test Circuit) Components Description RI Inverting input resistance to provide AC gain in conjunction with RF. This input is biased at the BIASCAP voltage (approximately 2.5VDC). RF Feedback resistor to set AC gain in conjunction with RI. Please refer to the Amplifier Gain paragraph, in the Application Information section. CI AC input coupling capacitor which, in conjunction with RI, forms a highpass filter at ) C R 2 ( 1 f I I C π = . RFBA Feedback divider resistor connected to V5. This resistor is normally set at 1k Ω. RFBB Feedback divider resistor connected to AGND. This value of this resistor depends on the supply voltage setting and helps set the TK2150 gain in conjunction with RI, RF, RFBA, and RFBC. Please see the Modulator Feedback Design paragraphs in the Application Information Section. RFBC Feedback resistor connected from either the OUT1(OUT2) to FBKOUT1(FBKOUT2) or speaker ground to FBKGND1(FBKGND2). The value of this resistor depends on the supply voltage setting and helps set the TK2150 gain in conjunction with RI, RF, RFBA,, and RFBB. It should be noted that the resistor from OUT1(OUT2) to FBKOUT1(FBKOUT2) must have a power rating of greater than ) (2R VPP P FBC 2 DISS = . Please see the Modulator Feedback Design paragraphs in the Application Information Section. CFB Feedback delay capacitor that both lowers the idle switching frequency and filters very high frequency noise from the feedback signal, which improves amplifier performance. The value of CFB should be offset between channel 1 and channel 2 so that the idle switching difference is greater than 40kHz. Please refer to the Application / Test Circuit. ROFA Potentiometer used to manually trim the DC offset on the output of the TK2350. ROFB Resistor that limits the manual DC offset trim range and allows for more precise adjustment. RREF Bias resistor. Locate close to pin 15 of the TC2001 and ground at pin 20 of the TC2001. CA BIASCAP decoupling capacitor. Should be located close to pin 1 of the TC2001 and grounded at pin 20 of the TC2001. DB Bootstrap diode. This diode charges up the bootstrap capacitors when the output is low (at VNN) to drive the high side gate circuitry. A fast or ultra fast recovery diode is recommended for the bootstrap circuitry. In addition, the bootstrap diode must be able to sustain the entire VPP-VNN voltage. Thus, for most applications, a 150V (or greater) diode should be used. CB High frequency bootstrap capacitor, which filters the high side gate drive supply. This capacitor must be located as close to VBOOT1 (pin 57 of the TP2150) or VBOOT2 (pin 27 of the TP2150) for reliable operation. The “negative” side of CB should be connected directly to the HO1COM (pin 47 of the TP2150) or HO2COM (pin 37 of the TP2150). Please refer to the Application / Test Circuit. CBAUX Bulk bootstrap capacitor that supplements CB during “clipping” events, which result in a reduction in the average switching frequency. RB Bootstrap resistor that limits CBAUX charging current during TK2150 power up (bootstrap supply charging). CS Supply decoupling for the power supply pins. For optimum performance, these components should be located close to the TC2001 and TP2150 and returned to their respective ground as shown in the Application/Test Circuit. RVNN1 Main overvoltage and undervoltage sense resistor for the negative supply (VNN). Please refer to the Electrical Characteristics Section for the trip points as well as the hysteresis band. Also, please refer to the Over / Under-voltage Protection section in the Application Information for a detailed discussion of the internal circuit operation and external component selection. RVNN2 Secondary overvoltage and undervoltage sense resistor for the negative supply (VNN). This resistor accounts for the internal VNNSENSE bias of 1.25V. Nominal |
Аналогичный номер детали - FQP16N15 |
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Аналогичное описание - FQP16N15 |
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