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TPA3111D1-Q1 데이터시트(PDF) 3 Page - Texas Instruments |
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TPA3111D1-Q1 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 31 page 1 2 3 4 5 6 7 8 9 10 28 27 26 25 24 23 22 21 20 19 SD FAULT GND GND GAIN0 GAIN1 AVCC AGND GVDD PLIMIT PVCC PVCC BSN OUTN PGND OUTN BSN BSP OUTP PGND INN INP NC 11 12 13 14 18 17 16 15 OUTP BSP PVCC PVCC AVCC TPA3111D1-Q1 www.ti.com SLOS759D – MARCH 2012 – REVISED AUGUST 2015 5 Pin Configuration and Functions PWP Package 28-Pin HSSOP With Thermal Pad Top View Pin Functions PIN TYPE DESCRIPTION NAME NO. AGND 8 — Analog supply ground, connect to the thermal pad. AVCC 7 P Analog supply AVCC 14 P Connect AVCC supply to this pin BSN 22, 26 I Bootstrap I/O for negative high-side FET BSP 17, 21 I Bootstrap I/O for positive high-side FET Open drain output used to display short circuit or DC detect fault status. Voltage compliant to AVCC. Short FAULT 2 O circuit faults can be set to auto-recovery by connecting FAULT pin to SD pin. Otherwise both short circuit faults and DC detect faults must be reset by cycling PVCC. GAIN0 5 I Gain select least significant bit. TTL logic levels with compliance to AVCC. GAIN1 6 I Gain select most significant bit. TTL logic levels with compliance to AVCC. GND 3, 4 — Connect to local ground High-side FET gate drive supply, nominal voltage is 7 V. May also be used as supply for PLIMIT divider. GVDD 9 O Add a 1- μF capacitor to ground at this pin. INN 11 I Negative audio input, biased at 3 V. INP 12 I Positive audio input, biased at 3 V. NC 13 — Not connected OUTN 23, 25 O Class-D H-bridge negative output OUTP 18, 20 O Class-D H-bridge positive output PGND 19, 24 — Power ground for the H-bridges Power limit level adjust. Connect directly to GVDD pin for no power limiting. Add a 1- μF capacitor to PLIMIT 10 I ground at this pin. 15, 16, PVCC P Power supply for H-bridge. PVCC pins are also connected internally. 27, 28 Shutdown logic input for audio amp(LOW = outputs Hi-Z, HIGH = outputs enabled). TTL logic levels with SD 1 I compliance to AVCC. Copyright © 2012–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPA3111D1-Q1 |
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