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Showing posts with the label 8 Ω

8W AUDIO AMPLIFIER TDA1908

General Description:
The TDA1908 is a monolithic integrated circuit in 12 lead quad in-line plastic package intended for low frequency power applications.The mounting is compatible with the old types TBA800, TBA810S, TCA830S and TCA940N. Its main features are:
Features:
flexibility in use with a max output curent of 3A and an operating supply voltage range of 4V to 30V;protection against chip overtemperature;soft limiting in saturation conditions;low ”switch-on” noise;low number of external components;high supply voltage rejection;
Circuit Diagram

2 x 1 W BTL audio amplifier with output channel switching

FEATURES:
Selection between output channelsFlexibility in useFew external componentsLow saturation voltage of output stageGain can be fixed with external resistorsStandby mode controlled by CMOS compatible levelsLow standby currentNo switch-on/switch-off plopsHigh supply voltage ripple rejectionProtected against electrostatic dischargeOutputs short-circuit safe to ground, VCC and across theloadThermally protected.

APPLICATIONS:
Telecommunication equipmentPortable consumer productsPersonal computersMotor-driver (servo).

GENERAL DESCRIPTION:
The TDA8547(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 operating condition of all channels of the device (standby, mute or on) is externally controlled by the MODE pin. With the SELECT pin one of the output channels can be switched in the standby condition. This feature can be used …

High Efficiency Power Amplifier 2 x 30W into 8Ω or 1 x 60W into 4 Ω

GENERAL DESCRIPTION
The DDX-2050 power device is a monolithic dual channel H-Bridge that can provide up to 30 watts  per channel of audio power at very high efficiency. The DDX-2050 power device  contains a logic interface, integrated bridge  drivers, high efficiency MOSFET output  transistors and protection circuitry. The device  may be used as a dual bridge or reconfigured as  a single bridge with double the output current  capability.  The benefits of the DDX amplification system are  an all-digital design that eliminates the need for a  digital to analog converter (DAC) and the high  efficiency operation derived from the use of  Apogee's patented damped ternary pulse width  modulation (PWM). This approach provides an  efficiency advantage over conventional Class-D  designs and up to three times the efficiency of  typical Class A/B amplifiers with music input  signals.

100W Audio Power Amplifier with Mute

General Description: The LM4732 is a stereo audio amplifier capable of typically delivering 50W per channel of continuous average output power into a 4Ω or 8Ω load with less than 10% THD+N from 20Hz - 20kHz. The LM4732 has short circuit protection and a thermal shut down feature that is activated when the die temperature exceeds 150˚C. The LM4732 also has an under voltage lock out feature for click and pop free power on and off. Each amplifier of the LM4732 has an independent smooth transition fade-in/out mute. The LM4732 has a wide operating supply range from +/-10V - +/-40V allowing for lower cost unregulated power supplies to be used. The LM4732 amplifiers can easily be configured for bridge or parallel operation for 100W mono solutions. Circuit Diagram:



1W 2W Audio power IC for notebook PC

General Description: The AN12941A is an amplifier IC for stereo speakers which can output 1 W by 8 Ω or 2 W by 4 Ω. The AGC circuit is built-in to prevent the resonance or the vibration by the speaker's energy and the clipping distortion what is called "broken up sound." of the speakers. Also, to reduce power consumption, AN12941A has a built-in function which automatically detects the 
input signal and can automatically enter power save mode when there is no signal. 

Features:  Speaker amplifier is1 W × 2-channel: 8 Ω, VCC = 5 V or2 W × 2-channel: 4 Ω, VCC = 5 V Built-in AGC circuit Prevention of the resonance or the vibration by the speaker's energy and the clipping distortion of the speaker by AGC at excessive input signal (with AGC on/off switch). Built-in automatic power saving function It detects input signals and switches on/off (with the on/off switch for the automatic power saving). Operating supply voltage: VCC 3.0 V to 5.5 V/ VCC_SP 3.0 V to 5.5 VCircuit Di…

Dual 1-W BTL audio power amplifier

1-W output (8 Ω) with supply voltage of 5 VOn-chip standby functionOn-chip volume functionCircuit Diagram:

5W Mono channel SEPP audio power amplifier IC

General Overview:
The AN5279 is a monolithic integrated circuit designed for 5.0 W (19 V, 8 Ω) output audio power amplifier. It is a mono channel SEPP IC suitable for TV application.
Features:
• Few external components :
• No Boucherot cells(output C, R)
• No Bootstrap Capacitors
• No Negative Feeback Capacitors
• Built-in muting circuit
• Built-in stand-by circuit
• Built-in various protection circuits
(Load-short, thermal, over-voltage and current)
• High ripple rejection(55 dB)
• Operating voltage range 10 V to 24 V(19 V typ.)

Circuit Diagram:

10W Dual Channel SEPP Power Amplifier

Overview

The AN5277 is a monolithic integrated circuit designed for 10.0 W (26 V, 8 Ω)output audio power amplifier. It is a dual channel SEPP IC suitable for stereo operation in TV application.

Features

Few external components :No Boucherot cells(output C, R)No Bootstrap CapacitorsNo Negative Feedback CapacitorsBuilt-in muting circuitBuilt-in standby circuitBuilt-in various protection circuits (Load-short, thermal, over-voltage and current)High ripple rejection(55 dB)Compatible with AN5275, AN5276Operating voltage range 10 ∼ 32 V(26 V typ.)Circuit Diagram:

3 W BTL audio amplifier

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: PCB layout:

60W High Efficiency amplifier STA502

50W Audio Circuit Amplifier

Circuit Diagram:

2 x 175 W Audio Circuit Amplifier

Circuit Diagram:

2 x 10 or 1 x 20 W class-D audio amplifier

Circuit Diagram:

6 + 6W STEREO AMPLIFIER WITH MUTE & ST-BY TDA7499

Features:


WIDE SUPPLY VOLTAGE RANGE UP TO±18V6 + 6W @ THD =10%, RL = 8Ω, VS = +14VNO POP AT TURN-ON/OFFMUTE (POP FREE)STAND-BY FEATURE (LOW Iq)SHORT CIRCUIT PROTECTION TO GNDTHERMAL OVERLOAD PROTECTIONCircuit Diagram:

5W+5W AMPLIFIER WITH DC VOLUME CONTROL TDA7496

Circuit Diagram:

11W+11W AMPLIFIER WITH DC VOLUME CONTROL

General Description:
TDA7495 is a stereo 11+11W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the TDA7495 include linear volume control, Stand-by and mute functions.
Circuit Diagram:

10W AMPLIFIER WITH DC VOLUME CONTROL TDA7494

Features:

10W OUTPUT POWER RL = 8Ω, @ THD = 10% VCC = 28VST-BY AND MUTE FUNCTIONSLINEAR VOLUME CONTROL DC COUPLEDWITH POWER OP AMPLIFIERNO BOUCHEROT CELLNO ST-BY RC INPUT NETWORKSIGNAL LINE OUTPUT BEFORE VOLUMECONTROLLING AND MUTING3 SWITCHABLE VOLTAGE CONTROLLEDINPUT PINSSINGLE SUPPLY RANGING UP TO 35VSHORT CIRCUIT PROTECTIONTHERMAL OVERLOAD PROTECTIONINTERNALLY FIXED GAIN SOFT CLIPPINGLOW TURN-ON TURN-OFF POP NOISEMULTIWATT 15 PACKAGECircuit Diagram:

18W MONO CLASS-D AMPLIFIER

Features:

18W OUTPUT POWER:RL = 8Ω/4Ω; THD = 10%HIGH EFFICIENCYWIDE SUPPLY VOLTAGE RANGE (UP TO ±25V)SPLIT SUPPLYOVERVOLTAGE PROTECTIONST-BY AND MUTE FEATURESSHORT CIRCUIT PROTECTIONTHERMAL OVERLOAD PROTECTIONCircuit Diagram:

10W MONO CLASS-D AMPLIFIER

General Description:
The TDA7480 is an audio class-D amplifier asempled in power dip package specially designed for high efficientcy applications mainly for TV and Home stereo sets.
Circuit Diagram:

35 W bridge car radio amplifier TDA7391

Features
 High power capability: – 40 W/4  max – 35 W/4  EIAJ – 45 W/3.2  max – 40 W/3.2  EIAJ – 32 W/3.2  @ VS = 14.4 V, f = 1 kHz,  d = 10 % – 26 W/4 @ VS = 14.4 V, f = 1 kHz,  d = 10 %  DIfferential inputs (either single ended or  differential input signal are accepted)  Minimum external component count: – No bootstrap capacitors – No Boucherot cells – Internally fixed gain (30 dB) – No SVR Capacitor  Standby function (CMOS compatible)  Programmable turn-on/off delay  No audible pop during mute and standby  operations  Protections: – Short circuit (to GND, to VS, across the  load) – Very inductive loads – Chip over temperature – Load dump – Open GND – ESD Description
The TDA7391 is a bridge class AB audio power amplifier specially intended for car radio high power applications. The high power capability together with the possibility to operate either in differential input mode or single ended input mode makes it suitable for boosters and high end car radio equipments. The exclusive fully complemen…