TDA W MONO CLASS-D AMPLIFIER 1 FEATURES 2 DESCRIPTION. Figure 1. Package 25W OUTPUT POWER:

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1 25 MONO CLASS-D AMPLIFIER 1 FEATURES 25 OUTPUT POER: RL = 8Ω/4Ω; THD = 10% HIGH EFFICIENCY IDE SUPPLY VOLTAGE RANGE (UP TO ±25V) SPLIT SUPPLY OVERVOLTAGEPROTECTION ST-BY AND MUTE FEATURES SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION Figure 1. Package Table 1. Order Codes Part Number Multiwatt15 Package Multiwatt15 2 DESCRIPTION The is an audio class-d amplifier assembled in Multiwatt15 package specially designed for high efficiency applications mainly for TV and Home Stereo sets. Figure 2. Test and Application Circuit. +5V +VCC R2 10K R1 10K R3 30K -VCC (Pin 14,15) N.C. C5 V CC PO C6 V CC SIGN C7 2200µF ST-BY MUTE C1 ST-BY/ MUTE µf IN1 C2 0.33µF C4 4.7nF C3 1nF IN1 FEEDCAP PRE + - PM BOOT OUT VREG C11 C12 560pF R5 150Ω L1 60µH C14 470nF 8Ω SGN-GND ,15 2 BOOTDIODE C15 FREQ -V CC SIGN -V CC PO C8 270pF R4 12KΩ (R F ) -VCC D96AU538C C9 C µF October 2004 Rev. 4 1/7

2 Table 2. Pin Description N Pin Function 1 OUT PM OUTPUT 2 BOOTDIODE BOOTSTRAP DIODE ANODE 3 BOOT BOOTSTRAP 4 NC NOT CONNECTED 5 FEEDCAP FEEDBACK INTEGRATING CAPACITOR 6 FREQ SETTING FREQUENCY RESISTOR 7 SGN-GND SIGNAL GROUND 8 V CC SIGN SIGNAL NEGATIVE SUPPLY 9 IN INPUT 10 ST-BY/MUTE CONTROL STATE PIN 11 +V CC SIGN POSITIVE SIGNAL SUPPLY 12 VREG INTERNAL VOLTAGE REGULATOR 13 +V CC PO POSITIVE POER SUPPLY 14 -V CC PO NEGATIVE POER SUPPLY (to be connected to pin 13 via C5) 15 -V CC PO NEGATIVE POER SUPPLY (to be connected to pin 13 via C5) Table 3. Absolute Maximum Ratings Symbol Parameter Value Unit V CC DC Supply Voltage ±28 V P tot Power Dissipation T case = 70 C 35 T stg, T j Storage and Junction Temperature 40 to 150 C V FREQ Maximum Voltage Across RF (pin6) 8 V T op Operating Temperature Range 0 to 70 C ESD Max ESD on Pins ±1.2 KV Figure V CC PO -V CC PO +V CC PO VREG +V CC SIGN ST-BY/MUTE IN -V CC SIGN SGN-GND FREQ FEEDCAP N.C. BOOT BOOTDIODE OUT TAB CONNECTED TO PIN 8 D96AU539A Table 4. Thermal Data Symbol Parameter Value Unit T th j-case Thermal Resistance Junction-case 1.8 to 2.5 C/ 2/7

3 Table 5. Electrical Characteristcs (Refer to the test circuit, V CC = ±21V; R L = 8Ω; R S = 50Ω; R F = 12KΩ; Demod.. filter L = 60µH, C = 470nF; f = 1KHz; T amb = 25 C unless otherwise specified.) Symbol Parameter Test Condition Min. Typ. Max. Unit V S Supply Range ±10 ±25 V I q Total Quiescent Current R L =, No LC Filter ma V OS Output Offset Voltage Play Condition mv P O Output Power THD = 10% THD = 1% P O Output Power R L = 4Ω ; V CC = ±16V; THD = 10% THD = 1% (*) P D Maximum Dissipated Power V CC =±21V; R L = 8Ω; P O = 25 THD 10% η P o P o Efficiency ( ) P O + P D P I V CC = ±21V; R L = 8Ω; P O = 18 THD 10% *: The output LC filtermust be changed to: L = 30µH; C = 1µF **: P O = measured across the load using the following inductor: COIL MPPA2 (magnetics) TURNS: 28 φ 1mm ***: The zero-signal switching frequency can be obtained using the following expression: F S= B F/R F ****: The maximum value of R F is related to the maximum possible value for the voltage drop on R F itself (1) For V10 >5.2V, an input impedance of 10KΩ is to be considered % η max Top Efficiency maximum V CC = ±25V; R L = 8Ω; 88.5 % P O = 43 THD 20% THD Total Harmonic Distortion R L = 8Ω; P O = % I max Overcurrent Protection Threshold R L = A T j Thermal Shut-down Junction Temperature 150 C G V Closed Loop Gain db e N Total Input Noise A Curve f = 20Hz to 22KHz V CCTOT MAX Maximum Total V CC Protection 50 V R i Input Resistance kω SVR Supply Voltage Rejection f = 100Hz; V r = db T r, T f Rising and Falling Time 50 ns R DSON Power Transistor on Resistance 0.4 Ω F S-OP Switching Frequency Operative KHz Range F S Switching Frequency KHz B F Zero Signal Frequency 1.4x10 9 HzΩ Constant (***) R F Frequency Controller Resistor Range (****) KΩ MUTE & STAND-BY FUNCTIONS V ST-BY Stand-by range 0.8 V V MUTE Mute Range V V PLAY Play Range (1) 4 V A MUTE Mute Attenuation db I qst-by Quiescent Stand-by 3 5 ma 7 12 µv µv 3/7

4 Figure 4. Recommended P.C. Board and Component Layout of the Circuit of Figure 2 Note: Capacitor C5 must be as close as possible to device s pins 13 and 14 4/7

5 Figure 5. Multiwatt15 Mechanical Data & Package Dimensions DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A B C D E F G G H H L L L L L L M M S S Dia OUTLINE AND MECHANICAL DATA Multiwatt15 (Vertical) J 5/7

6 Table 1. Revision History Date Revision Description of Changes September First Issue in EDOCS October Aligned the graphic style to be compliant with the new Corporate Technical Pubblications Design Guide 6/7

7 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 7/7

TDA W MONO CLASS-D AMPLIFIER 18W OUTPUT POWER:

TDA W MONO CLASS-D AMPLIFIER 18W OUTPUT POWER: TDA481 18 MONO CLASS-D AMPLIFIER 18 OUTPUT POER: RL = 8Ω/4Ω; THD = 10% HIGH EFFICIENCY IDE SUPPLY VOLTAGE RANGE (UP TO ±25V) SPLIT SUPPLY OVERVOLTAGE PROTECTION ST-BY AND MUTE FEATURES SHORT CIRCUIT PROTECTION