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Showing posts with the label car radio amplifier

24 W BTL or 2 x 12 W stereo car radio power amplifier

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 stereohigh output powerlow offset voltage at the output (important for BTL)large usable gain variationvery good ripple rejectioninternal limited bandwidth for high frequencieslow stand-by current possibility (typ. 1 µA), to simplify required switches; TTL drive possiblelow number and small sized external componentshigh reliability.he following currently required protections are incorporated in the circuit. These protections also have positive influenceon reliability in the applications.loa…

10 Watt car radio audio amplifier

General Description: The TDA 2003 hasimproved performancewith the same pin configuration as the TDA 2002. The additional features of TDA 2002, very low numberof externalcomponents,ease of assembly, space and cost saving, are maintained. Thedeviceprovidesa high outputcurrentcapability (up to 3.5A) very low harmonic and cross-over distortion. Completely safe operation is guaranteed due to protectionagainst DCand ACshort circuit between all pins and ground,thermal over-range,load dump voltage surge up to 40V and fortuitous open ground.
Circuit Diagram: Datasheet for TDA2003:Download

DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO

2 × 40 W/2 Ω stereo BTL car radio power amplifier

FEATURES: Requires very few external componentsHigh output power4 Ω and 2 Ω load impedanceLow output offset voltageFixed gainDiagnostic facility (distortion, short-circuit and temperature detection)Good ripple rejectionMode select switch (operating, mute and standby)Load dump protectionShort-circuit safe to ground, to VP and across the loadLow power dissipation in any short-circuit conditionThermally protectedReverse polarity safeElectrostatic discharge protectionNo switch-on/switch-off plopFlexible leadsLow thermal resistance.
GENERAL DESCRIPTION: The TDA8563AQ is an integrated class-B output amplifier in a 13-lead single-in-line (SIL) power package. It contains 2 × 40 W/2 Ω amplifiers in BTL configuration. The device is primarily developed for car radio applications.
Circuit Diagram:

45W/2Ω BRIDGE CAR RADIO AMPLIFIER WITH DIAGNOSTIC FACILITY

Circuit Diagram:

10W CAR RADIO AUDIO AMPLIFIER

DESCRIPTION:
The TDA 2003 hasimproved performancewith the same pin configuration as the TDA 2002. The additional features of TDA 2002, very low numberof externalcomponents,ease of assembly, space and cost saving, are maintained. Thedeviceprovidesa high outputcurrentcapability (up to 3.5A) very low harmonic and cross-over distortion. Completely safe operation is guaranteed due to protectionagainst DCand ACshort circuit between all pins and ground,thermal over-range,load dump voltage surge up to 40V and fortuitous open ground.
Circuit diagram:

30W bridge car radio amplifier TDA7256

Description of TDA7256:

The TDA7256 is a class AB fully protected bridge power amplifier designed for car radio application. The high current capability allows to dirve low impedance loads up to 22 Ohm. The differential inputs availability makes it particularly suitable for boosters and active loudspeakers applications
Features of TDA7256:
NO AUDIBLE POP DURING MUTE ANDSTANDBY OPERATIONSMUTING TTL COMPATIBLEVERY LOW STANDBY CONSUMPTIONPROGRAMMABLE TURN ON DELAYDIFFERENTIAL INPUTSHORT CIRCUIT PROTECTIONS:RL SHORT - OUT TO GROUND - OUT TO VSOTHER PROTECTIONS:Load dump voltage surgeLoudspeakerDC currentVery inductive loadOverrating temperatureOpen groundCircuit diagram for TDA7256:

PCB and layout for TDA7256:

PCB and layout for TDA7256:Download