AmplifierCircuits

General Description: The TDA1515BQ is a monolithic integrated class-B output amplifier in a 13-lead single in-line (SIL) plastic power  package. The device is primarily developed for car radio applications, and also to drive low-impedance loads (down to  1,6 Ω). At a supply voltage VP = 14,4 V, an output power of 24 W can be delivered into a 4 Ω BTL (Bridge Tied Load),  or, when used as stereo amplifier, it delivers 2 × 12 W into 2 Ω or 2 × 7 W into 4 Ω.  Features: flexibility in use − mono BTL as well as stereo high output power low offset voltage at the output (important for BTL) large usable gain variation very good ripple rejection internal limited bandwidth for high frequencies low stand-by current possibility (typ. 1 µA), to simplify required switches; TTL drive possible low number and small sized external components high reliability. he following currently required protections are incorporated in the circuit. These protections also have pos...

Description: The AN7177 is a monolithic integrated circuit designed for   Dual BTL audio power amplifier suitable for Hi-Fi and car  stereo.  Features:  High output power (20W x 2)   Incorporating stand-by circuits   Low shock noise from power ON/OFF switching   Fewer external components   Incorporates protection circuits   Highly stable operation Circuit Diagram: Dual BTL 20W Audio Power Amplifier  Datasheet for AN7177:   Download

General Description: The TDA8943SF is a single-channel audio power amplifier with an output power of 6 W at an 8 Ω load and a 12 V supply. The circuit contains a Bridge Tied Load (BTL) amplifier with an all-NPN output stage and standby/mute logic. The TDA8943SF comes in a 9-lead single in-line (SIL) medium power package. The TDA8943SF is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products. Circuit diagram: 6 W mono Bridge Tied Load Datasheet for TDA8943:   Download

General Description: The TDA8542(T) is a two channel audio power amplifier for an output power of 2 × 1 W with an 8 Ω load at a 5 V supply. The circuit contains two BTL amplifiers with a complementary PNP-NPN output stage and standby/mute logic. The TDA8542T comes in a 16 pin SO package and the TDA8542 in a 16 pin DIP package. Circuit Diagram: Circuit diagram for TDA8542 2 × 1 W BTL audio amplifier

FEATURES: Requires very few external components High output power Flexibility in use - Quad single-ended or stereo BTL Low output offset voltage Fixed gain Diagnostic facility (distortion, short-circuit and  temperature detection) Good ripple rejection Mode select switch (operating, mute and standby) Load dump protection AC and DC short-circuit safe to ground and to VP Low power dissipation in any short-circuit condition Thermally protected Reverse polarity safe Electrostatic discharge protection No switch-on/switch-off plop Flexible leads Low thermal resistance Identical inputs (inverting and non-inverting). GENERAL DESCRIPTION: The TDA8564Q is an integrated class-B output amplifier in  a 17-lead DIL-bent-SIL power package. It contains  4 × 12 W single-ended or 2 × 24 W bridge amplifiers. Circuit Diagram: Circuit diagram for 2 x 24 W BTL Circuit diagram for 4 x 12 W TDA8564Q

General Description: The thermal resistance θj−T of TA8220H package designed for  low thermal resistance, has high efficiency of heat radiation.  The temperature rise of chip can be reduced, and the influence  from the degradation of the features due to the temperature rise  at the high output can also be reduced.  This stereo audio power IC, designed for car audio use, has two   built−in channels to reduce the characteristic difference between  L and R channels. It also contains output short detection circuit,  output clip detection and various kind of protection.  Features: Low thermal resistance: θj−T = 1.5°C / W (infinite heat sink)  High power: POUT (1) = 30W (typ.) / channel  (VCC = 14.4V, f = 1kHz, THD = 10%, RL = 2Ω)  : POUT (2) = 26W (typ.) / channel  (VCC = 13.2V, f = 1kHz, THD = 10%, RL = 2Ω)  : POUT (3) = 19W (typ.) / channel  (VCC = 13.2V, f = 1kHz, THD = 10%, RL = 4Ω)  ...

Circuit diagram for 2-Channel 30W BTL Audio Amplifier layout 2-Channel 30W BTL Audio Amplifier

2-channel 13.5 W BTL Audio Power Amplifier

20 Watt BTL Audio Amplifier

General description: The SA58632 is a two-channel audio amplifier in an HVQFN20 package. It provides  power output of 2.2 W per channel with an 8 Ω load at 9 V supply. The internal circuit is  comprised of two BTL (Bridge-Tied Load) amplifiers with a complementary PNP-NPN  output stage and standby/mute logic. The SA58632 is housed in a 20-pin HVQFN  package, which has an exposed die attach paddle enabling reduced thermal resistance and increased power dissipation. Circuit Diagram: Circuit Diagram

General description: The SA58631 is a one channel audio amplifier in an HVSON8 package. It provides power  output of 3 W with an 8 Ω load at 9 V supply. The internal circuit is comprised of a BTL  (Bridge Tied Load) amplifier with a complementary PNP-NPN output stage and  standby/mute logic. The SA58631 is housed in an 8-pin HVSON package which has an  exposed die attach paddle enabling reduced thermal resistance and increased power  dissipation. Circuit Diagram: 3 W BTL audio amplifier PCB layout: Pcb layout 3 W BTL audio amplifier

General description The TDA8945S is a single-channel audio power amplifier with an output power of 15 W at an 8 Ω load and an 18 V supply. The circuit contains a Bridge Tied Load (BTL) amplifier with an all-NPN output stage and standby/mute logic. The TDA8945S comes in a 9-lead single in-line (SIL) power package. The TDA8945S is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products. Features Few external components Fixed gain Standby and mute mode No on/off switching plops Low standby current High supply voltage ripple rejection Outputs short-circuit protected to ground, supply and across the load Thermally protected Printed-circuit board compatible. Applications Mains fed applications (e.g. TV sound) PC audio Portable audio. Circuit Diagram 15 W mono Bridge Tied Load (BTL) audio amplifier cicuit diagram Layout and pcb: 15 W mono Bri...