Philips TDA8925 Скачать руководство пользователя страница 1

Страница: 1 / 23

DATA SHEET

Product specification
Supersedes data of 2004 Jan 05

2004 May 06

INTEGRATED CIRCUITS

TDA8925
Power stage 2 x 15 to 25 W class-D
audio amplifier

Содержание TDA8925

Страница 1: ...DATA SHEET Product specification Supersedes data of 2004 Jan 05 2004 May 06 INTEGRATED CIRCUITS TDA8925 Power stage 2 x 15 to 25 W class D audio amplifier ...

Страница 2: ...CATION 12 DC CHARACTERISTICS 13 AC CHARACTERISTICS 14 SWITCHING CHARACTERISTICS 15 TEST AND APPLICATION INFORMATION 15 1 SE application 15 2 Package ground connection 15 3 Output power 15 4 Reference design 15 5 Reference design bill of material 15 5 1 Version 2 revision 5 15 5 2 Printed circuit board 15 6 Curves measured in reference design 16 PACKAGE OUTLINES 17 SOLDERING 17 1 Introduction to so...

Страница 3: ...ating digital amplifier system can be built operating with high efficiency and very low dissipation No heatsink is required The system operates over a wide supply voltage range from 7 5 V up to 30 V and consumes a very low quiescent current 4 QUICK REFERENCE DATA 5 ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT General VP supply voltage 7 5 15 30 V Iq tot total quiescent current...

Страница 4: ...610 handbook full pagewidth CONTROL AND HANDSHAKE DRIVER HIGH TDA8925 TEMPERATURE SENSOR AND CURRENT PROTECTION DRIVER LOW temp current 4 7 VSS1 VSS1 VSS2 VDD2 6 1 2 9 8 10 VDD2 VDD1 13 5 CONTROL AND HANDSHAKE DRIVER HIGH DRIVER LOW 14 11 12 17 16 3 15 EN1 DIAG REL1 SW1 SW2 REL2 POWERUP EN2 BOOT1 OUT1 STAB OUT2 BOOT2 Fig 1 Block diagram ...

Страница 5: ...utput channel 1 VSS1 8 negative power supply channel 1 STAB 9 decoupling internal stabilizer for logic supply VSS2 10 negative power supply channel 2 OUT2 11 PWM output channel 2 BOOT2 12 bootstrap capacitor channel 2 VDD2 13 positive power supply channel 2 EN2 14 digital enable input channel 2 POWERUP 15 enable input for switching on internal reference sources REL2 16 digital control output chann...

Страница 6: ...WERUP must be connected to a continuous supply voltage of at least VSS 5 V with respect to VSS Enable pins EN1 and EN2 digital inputs at a level of VSS the power DMOS switches are open and the PWM outputs are floating at a level of VSS 12 V the power stage is operational Diagnostics pin DIAG digital open drain output pulled to VSS if the temperature or maximum current is exceeded 8 2 Protection Te...

Страница 7: ... V IORM repetitive peak current in output pins 3 5 A Tstg storage temperature 55 150 C Tamb ambient temperature 40 85 C Tvj virtual junction temperature 150 C Vesd HBM electrostatic discharge voltage HBM note 1 all pins with respect to VDD class 1a 500 500 V all pins with respect to VSS class 1a 1500 1500 V all pins with respect to each other class 1a 1500 1500 V Vesd MM electrostatic discharge vo...

Страница 8: ...t voltage referenced to VSS 0 2 V Control outputs pins REL1 and REL2 VOH HIGH level output voltage referenced to VSS 10 15 V VOL LOW level output voltage referenced to VSS 0 2 V Diagnostic output pin DIAG open drain VOL LOW level output voltage IDIAG 1 mA note 1 0 1 0 V ILO output leakage current no error condition 50 µA Enable inputs pins EN1 and EN2 VIH HIGH level input voltage referenced to VSS...

Страница 9: ...nic Distortion THD is measured in a bandwidth of 22 Hz to 20 kHz AES 17 brickwall filter When distortion is measured using a low order low pass filter a significantly higher value will be found due to the switching frequency outside the audio band Measured using the typical application circuit given in Fig 5 4 Efficiency for power stage SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT Single ended app...

Страница 10: ...AX UNIT PWM outputs pins OUT1 and OUT2 see Fig 3 tr rise time 30 ns tf fall time 30 ns tblank blanking time 70 ns tPD propagation delay from pin SW1 SW2 to pin OUT1 OUT2 200 ns tW min minimum pulse width 220 270 ns Rds on on resistance of the output transistors 0 2 0 4 Ω handbook full pagewidth MGW145 PWM output V VDD VSS 0 V tblank tf tr 1 fosc 100 ns VSTAB VSS VSW V tPD VSTAB VSS VREL V Fig 3 Ti...

Страница 11: ...e to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader white to force landscape pages to be 15 TEST AND APPLICATION INFORMATION dbook full pagewidth 12 kΩ 15 nF MDB613 15 nF 100 nF CONTROL AND HANDSHAKE DRIVER HIGH TDA8925 TEMPERATURE SENSOR AND CURRENT PROTECTION DRIVER LOW temp current 4 7 VSS1 VSS1 VREL2 VSS2 VDD2 6 1 2 9 8 10 VDD2 VDD1 13 5 CONTR...

Страница 12: ...n SE self oscillating class D applications can be estimated using the formula The maximum current should not exceed 3 A Where RL load impedance Rs series resistance of filter coil Po 1 output power just at clipping The output power at THD 10 Po 10 1 25 Po 1 15 4 Reference design The reference design for a self oscillating class D system for the TDA8925 is shown in Fig 5 The Printed Circuit Board P...

Страница 13: ...T J R31 39 kΩ 1 7 6 9 12 11 5 13 8 10 2 15 3 4 14 16 17 VSSP VDDP VDDP VDDP VDDP C35 220 nF C33 470 nF C13 15 nF R23 22 Ω R21 5 6 Ω C11 220 nF C38 100 nF S1 power ON C37 220 pF STAB U1 9 STAB U1 9 DZ2 3 3 V DZ1 36 V R24 R16 1 kΩ R10 0 Ω C17 C15 100 nF 22 µF 100 V C14 22 µF 100 V C16 100 nF R28 0 Ω R29 0 Ω R4 1 kΩ R35 R34 3 9 kΩ R2 10 kΩ 150 Ω R8 3 9 kΩ R6 220 kΩ C22 2 2 nF C42 2 2 nF R32 100 Ω C39...

Страница 14: ... IN2 IN1 Q1 C38 R25 Q2 C2 C12 C13 VDD R28 R14 R13 R29 C11 C10 R26 R24 pin 1 R30 C28 R11 R12 R2 R31 C25 C24 C8 C9 C26 C31 C26 C31 C26 C30 R9 R35 R32 R1 GND 22 V OUT1 R23 C35 R22 C34 OUT2 C1 C16 R4 C22 C21 R6 R10 R17 R7 R5 U2 C37 R15 R19 R21 R19 R21 Fig 6 Printed circuit board bottom silk layout for TDA8925ST handbook full pagewidth MDB617 Bottom copper Fig 7 Printed circuit board bottom copper layo...

Страница 15: ...PONENT DESCRIPTION TYPE COMMENTS U1 TDA8925ST Philips Semiconductors SOT577 2 U2 LM393AD National SO8 alternatives TI semiconductors and On semiconductors DZ1 36 V Zener diode BZX 79C36V DO 35 used as jumper DZ2 3 3 V Zener diode BZX 79C3V3 DO 35 used as jumper optional Q1 BC848 transistor NPN SOT23 Q2 BC856 transistor PNP SOT23 L1 L2 bead Murata BL01RN1 A62 used as jumper L3 L4 33 µH coil Toko 11...

Страница 16: ...06 1206 due to supply range C7 C14 C15 C27 22 µF 100 V Panasonic NHG Series ECA1JHG220 63 V is OK C3 C4 C5 C6 470 µF 35 V Panasonic M Series ECA1VM471 C18 C23 C36 these capacitors have been removed Resistors R10 R26 R28 R29 0 Ω SMD1206 used as jumpers R24 0 Ω SMD0805 short circuited in a new printed circuit board layout R19 R21 5 6 Ω 0 25 W SMD1206 1206 due to dissipation R22 R23 22 Ω 1 W SMD2512 ...

Страница 17: ...age MDB620 10 102 103 104 105 102 10 1 10 1 10 3 10 2 fi Hz THD N 1 2 Fig 10 THD N as function of frequency 2 8 Ω SE VP 15 V 1 Po 10 W 2 Po 1 W handbook halfpage 0 20 100 0 20 40 60 80 4 8 12 16 η Po W MDB622 Fig 11 Efficiency as function of output power 2 8 Ω SE VP 15 V fi 1 kHz handbook halfpage 1 3 4 MDB619 SVRR dB 80 60 40 20 0 fi Hz 10 102 103 104 105 2 Fig 12 SVRR as function of frequency VP...

Страница 18: ...k halfpage 100 0 80 60 40 20 MDB623 102 10 fi Hz αcs dB 103 104 105 2 1 Fig 14 Channel separation as function of frequency 2 8 Ω SE VP 15 V 1 Po 1 W 2 Po 10 W handbook halfpage 10 35 15 20 25 30 MDB624 102 10 fi Hz G dB 103 104 105 Fig 15 Gain as function of frequency 2 8 Ω SE VP 15 V Vi 100 mV handbook halfpage 10 2 1 20 25 5 9 13 17 21 12 Po W VP V 14 16 18 MDB625 Fig 16 Output power as function...

Страница 19: ...0 38 24 0 23 6 20 0 19 6 10 2 54 12 2 11 8 1 27 2 54 3 75 3 15 Eh Dh 6 2 00 1 45 2 1 1 8 3 4 3 1 DIMENSIONS mm are the original dimensions Note 1 Plastic or metal protrusions of 0 25 mm maximum per side are not included 3 75 3 15 SOT577 2 0 5 10 mm scale Q j 0 4 w 0 6 v 0 03 x D E A L1 Q L c A2 w M bp 1 d Z e 2 e e 1 17 j 01 01 05 03 03 12 RDBS17P plastic rectangular DIL bent SIL power package 17 ...

Страница 20: ...0 25 mm maximum per side are not included SOT243 3 0 5 10 mm scale D L E A c A2 L3 Q w M bp 1 d D Z e e x h 1 17 j Eh non concave 99 12 17 03 03 12 DBS17P plastic DIL bent SIL power package 17 leads lead length 7 7 mm SOT243 3 view B mounting base side m 2 e v M B UNIT A e1 A2 bp c D 1 E 1 Z 1 d e Dh L L3 m mm 17 0 15 5 4 6 4 4 0 75 0 60 0 48 0 38 24 0 23 6 20 0 19 6 10 2 54 v 0 6 12 2 11 8 1 27 e...

Страница 21: ...must not exceed 5 seconds The device may be mounted up to the seating plane but the temperature of the plastic body must not exceed the specified maximum storage temperature Tstg max If the printed circuit board has been pre heated forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit 17 3 Manual soldering Apply the soldering iron 24 V or ...

Страница 22: ...ues definition Limiting values given are in accordance with the Absolute Maximum Rating System IEC 60134 Stress above one or more of the limiting values may cause permanent damage to the device These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied Exposure to limiting value...

Страница 23: ...ability will be accepted by the publisher for any consequence of its use Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights Philips Semiconductors a worldwide company Contact information For additional information please visit http www semiconductors philips com Fax 31 40 27 24825 For sales offices addresses send e mail to sal...

Результаты поиска

Содержание TDA8925

Отзывы:

Похожие инструкции для TDA8925

Бренды по названию

Популярные бренды

Philips TDA8925, Техническое описание

Результаты поиска

Содержание TDA8925

Отзывы:

Похожие инструкции для TDA8925

Бренды по названию

Популярные бренды