TFA9815 NXP Semiconductors, TFA9815 Datasheet
TFA9815
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TFA9815 Summary of contents
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... By using this power comparator a compact closed-loop self-oscillating digital audio amplifier system or open-loop system can be built. The continuous output power full-bridge BTL application. The TFA9815 does not require a heat sink and operates using an asymmetrical supply voltage. 2. Features I Stereo full-bridge audio amplifi ...
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... Rev. 01 — 16 December 2008 Audio amplifi Figure 12, unless otherwise Min Typ - TFA9815 Max Unit Version SOT287-1 © NXP B.V. 2008. All rights reserved ...
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... SO/ TEST MANAGER ENABLE 7 REFERENCE V 13 DDA2 IN2P 15 COMPARATOR 2 IN2N SSA2 Fig 1. TFA9815 block diagram TFA9815_1 Preliminary data sheet CONTROL LOGIC CONTROL LOGIC STAB1 STAB2 CONTROL LOGIC CONTROL LOGIC HEATSPREADER SSD(HW) Rev. 01 — 16 December 2008 TFA9815 Audio amplifi ...
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... Rev. 01 — 16 December 2008 TFA9815 Audio amplifi SSD(HW) 31 STAB1 30 V SSP1 29 BOOT1N 28 OUT1N 27 BOOT1P 26 OUT1P 25 V DDP1 TFA9815 24 V DDP2 SO32 23 OUT2P 22 BOOT2P 21 OUT2N 20 BOOT2N 19 V SSP2 18 STAB2 17 V SSD(HW) 010aaa212 . Together with the applied SSA © ...
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... SSD(HW) 8. Functional description 8.1 General The TFA9815 is a dual-switching power comparator the main building block for a stereo high-efficiency Class D audio power amplifier system. It contains two full-bridge BTL power stages, drive logic, protection control logic and full differential input comparators and references (see closed-loop self-oscillating digital amplifi ...
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... Open The device has two modes: Sleep and Operating. In Sleep mode the TFA9815 is not biased and has a very low supply current. Sleep mode can also be used to quickly mute the device. When the TFA9815 is set into Operating mode the device is started via the start-up sequence, which provides a pop-free start-up behavior ...
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... When any other protection is activated (OVP, UVP, ODP, or WP) all the outputs become floating and the device shuts down. The TFA9815 will resume operating after the fault condition has been removed, going through the restart sequence shown in Restarting will typically take 500 ms, depending on the power-supply voltage level. • ...
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... V LOW SSA FLOATING PWM AUDIO OPERATING FAULT RESTART Rev. 01 — 16 December 2008 TFA9815 Audio amplifi Recovering Automatic, after 5 s and T j Automatic, after 5 s Switch-off to restart when V Switch-off to restart when V Switch-off to restart Start-up after removing fault condition ...
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... V SSD(HW) V SSD(HW) V SSD(HW) IN1P IN1N 2, 14 IN2N IN2P DDA1 V SSA1 V SSA2 V DDA2 SO/OL Rev. 01 — 16 December 2008 TFA9815 Audio amplifi 010aaa384 V DDA1 135 k 5.5 V hvp V SSA 135 k 5 SSA1 010aaa385 010aaa386 V DDA1 V ...
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... NXP Semiconductors Table 7. Pin TFA9815_1 Preliminary data sheet Internal circuitry …continued Symbol Equivalent circuit ENABLE 7 CDELAY 8 DIAG TEST Rev. 01 — 16 December 2008 TFA9815 Audio amplifi DDA1 3 k 250 nA V 010aaa387 V DDA1 2.8 A 200 nA 2 DDA1 SSA1 SSD ...
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... Equivalent circuit STAB2 STAB1 V SSP2 V DDP2 V DDP1 V SSP1 BOOT2N BOOT1N OUT2N OUT2P OUT1P OUT1N BOOT2P BOOT1P Rev. 01 — 16 December 2008 TFA9815 Audio amplifi DDA1 DDA2 SSD 010aaa445 24, 25 23.5 V 19, 30 010aaa446 20 OUT2N, OUT1N 010aaa447 ...
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... IN2P - IN2N all other pins electrostatic discharge HBM voltage MM = 1500 ; C = 100 pF; for pins 2, 3, 14, and 15 200 pF 0. Conditions JEDEC test board Two-layer application board - - Rev. 01 — 16 December 2008 TFA9815 Audio amplifi Min Max 0.3 +23 180 55 +150 40 + ...
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... Operating mode self-oscillating configuration open-loop configuration Operating mode - 20 Hz < f < 20 kHz - - - level internal fixed level internal fixed - Rev. 01 — 16 December 2008 TFA9815 Audio amplifi Min Typ Max 110 200 - 150 220 ...
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... AES17 brick-wall (RMS v(cl) Operating mode kHz kHz o i Rev. 01 — 16 December 2008 TFA9815 Audio amplifi Min Typ Max Unit - DDA - SSA Typ ...
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... THD = 0.5 % and THD kHz (1) 4 (2) 6 (3) 8 BTL output power as function of supply voltage: THD = 1 % Rev. 01 — 16 December 2008 TFA9815 Audio amplifi Equation 1: Equation 2 010aaa449 (V) P © NXP B.V. 2008. All rights reserved. (1) ( ...
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... BTL output power as function of supply voltage: THD = ----------------------------------------------------- - DSon resistance power switch [ ] Table 13 shows the practical required values: Rev. 01 — 16 December 2008 TFA9815 Audio amplifi 010aaa450 (V) P © NXP B.V. 2008. All rights reserved ...
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... Impedance ( ) AUDIO IN1 DSP + V SS Input configuration for a differential input of the audio source (e.g. Audio Digital Signal SS Rev. 01 — 16 December 2008 TFA9815 Audio amplifi LLC ( H) CLC (nF) 10 1500 15 1000 22 680 Figure OUT1P OUT1N 010aaa382 Figure © NXP B.V. 2008. All rights reserved. ...
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... Input configuration for a single-ended input 300 mV (RMS Gain as a function of frequency Rev. 01 — 16 December 2008 TFA9815 Audio amplifi OUT1P OUT1N 010aaa383 010aaa451 (Hz) i © NXP B.V. 2008. All rights reserved ...
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... NXP Semiconductors THD+N (%) Fig 10. Total harmonic distortion + noise as a function of frequency THD+N (%) Fig 11. Total harmonic distortion as a function of output power 13.7 Typical application diagram TFA9815 A typical application diagram with the TFA9815 supplied from an asymmetrical supply is shown in TFA9815_1 Preliminary data sheet ...
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... C21 IN2 220 pF J5 C22 68 pF C24 C26 220 pF GND 1 F R22 R23 R34 IN2N R26 100 k GND OUT2+ Fig 12. Typical application diagram TFA9815 BEAD BEAD 220 F 220 F C31 100 100 nF 100 nF GND GND ...
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... TOKO A7503CY-220M or Sagami 7311NA-220M SMD 1206 5 % SMD 0603 0 for 20 dB 200 for SMD 0603 / 0 SMD 0603 0 1X1 Secme 090320901 TFA9815T SOT287-1 (SO32) NXP Semiconductors TFA9815 © NXP B.V. 2008. All rights reserved ...
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... Snubber network: bill of materials Quantity Reference 4 C27, C28, C29, C30 470 pF R27, R28, R29, R30 Rev. 01 — 16 December 2008 Audio amplifi Part Footprint SMD 0805 X7R SMD 1206 5 % TFA9815 © NXP B.V. 2008. All rights reserved ...
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... detail 1.1 1.2 1.4 0.25 0.25 0.1 0.4 1.0 0.043 0.047 0.055 0.01 0.01 0.004 0.016 0.039 EUROPEAN PROJECTION TFA9815 SOT287 ( 0. 0.037 0.022 ISSUE DATE 00-08-17 03-02-19 © NXP B.V. 2008. All rights reserved ...
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... NXP Semiconductors 15. Revision history Table 16. Revision history Document ID Release date TFA9815_1 20081216 TFA9815_1 Preliminary data sheet Data sheet status Change notice Preliminary data sheet - Rev. 01 — 16 December 2008 TFA9815 Audio amplifi Supersedes - © NXP B.V. 2008. All rights reserved ...
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... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 16 December 2008 TFA9815 Audio amplifi © NXP B.V. 2008. All rights reserved ...
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... Output power estimation 13.2 Output current limiting 13.3 Speaker configuration and impedance . . . . . . 16 13.4 Differential input . . . . . . . . . . . . . . . . . . . . . . . 17 13.5 Single-ended input . . . . . . . . . . . . . . . . . . . . . 17 13.6 Curves measured in a typical application . . . . 18 13.7 Typical application diagram TFA9815 . . . . . . . 19 13.8 Typical application: bill of materials Package outline . . . . . . . . . . . . . . . . . . . . . . . . 23 15 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 24 16 Legal information 16.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 25 16.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 16 ...