Showing posts with label car radio amplifier. Show all posts
Showing posts with label car radio amplifier. Show all posts

11/11/2014

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

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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 positive influence
  • on reliability in the applications.
  • load dump protection
  • a.c. and d.c. short-circuit safe to ground up to VP = 18 V
  • thermal protection
  • speaker protection in bridge configuration
  • SOAR protection
  • outputs short-circuit safe to ground in BTL
  • reverse polarity safe.
Circuit Diagram:
24 W BTL or 2 x 12 W stereo car radio power amplifier
Circuit diagram for 24 W BTL or 2 x 12 W stereo car radio power amplifier
Datasheet for TDA1515BQ
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10/07/2014

10 Watt car radio audio amplifier

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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:
Circuit diagram for 10 Watt car radio audio amplifier
Datasheet for TDA2003: Download
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9/15/2014

DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO

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CIRCUIT DIAGRAM for DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO

PCB LAYOUT for DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO

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9/12/2014

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

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FEATURES:
  • Requires very few external components
  • High output power
  • 4 Ω and 2 Ω load impedance
  • 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
  • Short-circuit safe to ground, to VP and across the load
  • 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.

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

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8/11/2014

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

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Circuit Diagram:
TDA7396 circuit diagram

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7/31/2014

10W CAR RADIO AUDIO AMPLIFIER

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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:
Circuit diagram 10W CAR RADIO AUDIO AMPLIFIER


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5/26/2014

30W bridge car radio amplifier TDA7256

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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 AND
  • STANDBY OPERATIONS
  • MUTING TTL COMPATIBLE
  • VERY LOW STANDBY CONSUMPTION
  • PROGRAMMABLE TURN ON DELAY
  • DIFFERENTIAL INPUT
  • SHORT CIRCUIT PROTECTIONS:
  • RL SHORT - OUT TO GROUND - OUT TO VS
  • OTHER PROTECTIONS:
  • Load dump voltage surge
  • LoudspeakerDC current
  • Very inductive load
  • Overrating temperature
  • Open ground
Circuit diagram for TDA7256:

30W bridge car radio amplifier TDA7256 circuit diagram
 PCB and layout for TDA7256:
30W bridge car radio amplifier TDA7256 pcb 

 PCB and layout for TDA7256: Download



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