TDA8950 NXP Semiconductors, TDA8950 Datasheet
TDA8950
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TDA8950 Summary of contents
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... TDA8950 2 Rev. 02 — 11 June 2009 1. General description The TDA8950 is a high-efficiency Class D audio power amplifier. The typical output power is 2 150 W with a speaker load impedance The TDA8950 is available in both HSOP24 and DBS23P power packages. The amplifier operates over a wide supply voltage range from 12 and features low quiescent current consumption ...
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... [3] = 680 Section 13.3. TDA8950 Typ Max Unit 170 W 100 - W 150 - W 100 - W 300 - W Version SOT566-3 © NXP B.V. 2009. All rights reserved ...
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... MODE MODE 2 (19) SGND mute 5 (22) IN2P INPUT 4 (21) STAGE IN2M 1 (18) 12 (6) VSSA n.c. Pin numbers in brackets refer to type number TDA8950J. Fig 1. Block diagram TDA8950_2 Product data sheet STABI PROT 18 (12) 13 (7) PWM SWITCH1 CONTROL MODULATOR HANDSHAKE STABI TEMPERATURE SENSOR ...
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... W class-D power amplifier OSC 1 2 IN1P 3 IN1M n. n.c. PROT 7 VDDP1 8 BOOT1 9 10 OUT1 VSSP1 11 TDA8950J STABI 12 13 VSSP2 14 OUT2 BOOT2 15 VDDP2 16 17 VSSD VSSA 18 SGND 19 20 VDDA 21 IN2M IN2P 22 MODE 23 001aah655 Pin configuration TDA8950J © NXP B.V. 2009. All rights reserved ...
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... VSSD 8. Functional description 8.1 General The TDA8950 is a two-channel audio power amplifier that uses Class D technology. For each channel, the audio input signal is converted into a digital PWM signal using an analog input stage and a PWM modulator; see transistors, the digital PWM signal is fed to a control and handshake block and to high- and low-side driver circuits ...
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... Each of the two audio channels contains a PWM modulator, an analog feedback loop and a differential input stage. The TDA8950 also contains circuits common to both channels such as the oscillator, all reference sources, the mode interface and a digital timing manager. The two independent amplifi ...
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... IN Figure 5. For proper switch-off, the audio output (1) modulated PWM operating > 350 audio output (1) modulated PWM operating mute > 350 TDA8950 and V ) DDA SSA time time 001aah657 reaches the MODE © NXP B.V. 2009. All rights reserved ...
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... How the device reacts to a fault conditions depends on which protection circuit has been activated. 8.3.1 Thermal protection The TDA8950 employes an advanced thermal protection strategy. A TFB function gradually reduces the output power within a defined temperature range. If the temperature continues to rise, OTP is activated to shut down the device completely. ...
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... Amplifier is switched off due to OTP. Fig 6. 8.3.2 OverCurrent Protection (OCP) In order to guarantee the robustness of the TDA8950, the maximum output current that can be delivered at the output stages is limited. OCP is built in for each output power switch. OCP is activated when the current in one of the power transistors exceeds the OCP threshold (I load ...
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... Window Protection (WP) checks the conditions at the output terminals of the power stage and is activated: • During the start-up sequence, when the TDA8950 is switching from Standby to Mute. Start-up will be interrupted If a short-circuit is detected between one of the output terminals and pin VDDP1/VDDP2 or VSSP1/VSSP2. The TDA8950 will wait until the short-circuit to the supply lines has been removed before resuming start-up ...
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... Mono BTL operation: the inputs must be connected in anti-parallel. The output of one channel is inverted and the speaker load is connected between the two outputs of the TDA8950. In practice (because of the OCP threshold) the output power can be boosted to twice the output power that can be achieved with the single-ended confi ...
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... Operating mode; no load; no filter; no RC-snubber network connected on pins OUT1 and OUT2 Thermal characteristics Parameter thermal resistance from junction to ambient thermal resistance from junction to case Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier OUT1 SGND OUT2 power stage mbl466 Min ...
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... W class-D power amplifier Min Typ [ 480 [ [4][ [4][5] 2.2 - [4][5] 4 110 [ [ [ 9.3 9.8 - 154 [7] - 153 V . DDA Figure 8. TDA8950 Max Unit 650 0 150 150 210 mV 10 © NXP B.V. 2009. All rights reserved ...
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... OSC 250 HIGH-level SGND + 4.5 - [2] 500 1 - [3] from SGND + SGND + 5 V (500 kHz minimum, 900 kHz maximum) will result in a PWM frequency f track Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier Mute On 2.2 3.0 4.2 V (V) MODE Typ Max 345 365 - 450 ...
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... L P [ [5] = 100 [ kHz - i [5] - [5] = 100 Hz - [5] = 100 [ kHz - i [5] - [5] = 100 [ [ [10] - [10] - Section 13.3. TDA8950 170 W 100 - W 150 - W 100 - 120 - 115 - 160 - ...
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... [ [5] = 100 [ kHz - i [5] - [5] = 100 Hz - [5] = 100 [ kHz - i [5] - [5] = 100 [ [ Section 13.3. TDA8950 340 - W 200 - W 300 - 120 - 130 - 190 - ...
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... A o(peak) Rev. 02 — 11 June 2009 2 150 W class-D power amplifi – 0 min osc (Section 8.3.2). I TDA8950 Figure 4, (1) (2) is the sum of o(peak) © NXP B.V. 2009. All rights reserved ...
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... OSC Rev. 02 — 11 June 2009 2 150 W class-D power amplifi – 0 min osc 2R L osc + Section 8.3. connected between pin OSC OSC TDA8950 2 (3) (4) is the sum o(peak) © NXP B.V. 2009. All rights reserved ...
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... An external heatsink must be connected to the TDA8950. Equation 5 of TFB and total thermal resistance from junction to ambient – Power dissipation (P) is determined by the efficiency of the TDA8950. Efficiency measured as a function of output power is given in derived as a function of output power as shown in (1) R (2) R ...
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... Figure 9. 13.6 Pumping effects In a typical stereo single-ended configuration, the TDA8950 is supplied by a symmetrical supply voltage (e.g. V configuration, a ‘pumping effect’ can occur. During one switching interval, energy is taken from one supply (e. ...
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... NXP Semiconductors The most effective way to avoid pumping effects is to connect the TDA8950 in a mono full-bridge configuration. In the case of stereo single-ended applications advised to connect the inputs in anti-phase (see adapted; for example, by increasing the values of the supply line decoupling capacitors. ...
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... HFE > 80 mode VDDP VSSP VSSA control C VDDP VSSP R OSC 30 k 100 nF 100 nF 100 OUT1 10 BOOT1 TDA8950J BOOT2 OUT2 VDDP VSSP C PROT (1) C STAB 100 nF 100 nF 100 nF 470 VDDP VSSP ...
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... 345 kHz configuration. P osc = 6 kHz kHz 100 Hz. i Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 010aaa553 (1) ( load 010aaa554 (1) (2) ( ...
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... 345 kH configuration. P osc = Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai423 (1) ( 001aai424 (Hz load © NXP B.V. 2009. All rights reserved. ...
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... 345 kHz BTL configuration. P osc = Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai701 (Hz load 001aai702 (Hz © NXP B.V. 2009. All rights reserved. ...
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... 345 kHz configuration. P osc 1 W and 10 W respectively. Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai703 (Hz) i 001aai704 (Hz) i © NXP B.V. 2009. All rights reserved. ...
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... kHz 345 kHz osc 8 SE configuration configuration configuration. Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai705 (1) (2) ( 100 P (W) o 001aai706 (1) ( 100 P (W) o © NXP B.V. 2009. All rights reserved. ...
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... Infinite heat sink used kHz 345 kHz. i osc Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai707 (1) (2) (3) (4) 25 27.5 30 32.5 35 37.5 001aai708 (1) (2) (3) (4) 25 27.5 30 32.5 35 37.5 © NXP B.V. 2009. All rights reserved. ...
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... Ripple short on input pins 345 kHz osc L Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai709 (1) (2) (3) ( (Hz 330 pF 680 nF 001aai710 ...
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... 345 kHz. P osc Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai711 (Hz) ripple = 2 V (p-p). ripple SS 001aai712 2.5 3 3.5 4 4.5 V MODE © NXP B.V. 2009. All rights reserved ...
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... Fig 27. Mute attenuation as a function of frequency TDA8950_2 Product data sheet (1) (2) ( 325 kHz (RMS). P osc i Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier 001aai713 (Hz) i © NXP B.V. 2009. All rights reserved ...
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... B: mounting base side 6.2 1.85 3.6 14 10.7 2.4 2.1 4.3 0.6 5.8 1.65 2.8 13 9.9 1.6 1.8 EUROPEAN PROJECTION TDA8950 SOT411 ( 1.43 0.25 0.03 45 0.78 ISSUE DATE 98-02-20 02-04-24 © NXP B.V. 2009. All rights reserved ...
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... scale (2) ( 0.32 16.0 13.0 1.1 11.1 6.2 2.9 0.23 15.8 12.6 0.9 10.9 5.8 2.5 REFERENCES JEDEC JEITA Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifi detail 14.5 1.1 1.7 1 0.25 0.25 0.03 13.9 0.8 1.5 EUROPEAN PROJECTION SOT566-3 X ...
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... Solder bath specifications, including temperature and impurities TDA8950_2 Product data sheet Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier © NXP B.V. 2009. All rights reserved ...
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... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 30. Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier Figure 30) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 250 245 ...
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... TDA8950_2 Product data sheet maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature MSL: Moisture Sensitivity Level Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier peak temperature time 001aac844 ). If the stg(max) © NXP B.V. 2009. All rights reserved. ...
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... Product data sheet Figure 4, Figure 10, Figure 11 Preliminary data sheet Rev. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier Soldering method Dipping Wave - suitable suitable suitable - not suitable Change notice Supersedes TDA8950_1 and Figure 12 © NXP B.V. 2009. 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. 02 — 11 June 2009 TDA8950 2 150 W class-D power amplifier © NXP B.V. 2009. All rights reserved ...
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... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2009. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com TDA8950 All rights reserved. Date of release: 11 June 2009 Document identifier: TDA8950_2 ...