Car Audio amplifier circuit with IC TDA1562 – 70 W

| | , , ,

General description
The TDA1562 is a monolithic integrated 70 W/4Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17 lead DIL-bent-SIL plastic power package.
The device can be used for car audio systems (e.g. car radios and boosters) as well as mains fed applications (e.g. midi/mini audio combinations and TV sound).

FEATURES of the IC TDA1562 – 70 W high efficiency power amplifier

  • Very high output power, operating from a single low supply voltage
  • Low power dissipation, when used for music signals
  • Switches to low output power at too high case temperatures
  • Few external components
  • Fixed gain
  • Differential inputs with high common mode rejection
  • Mode select pin (on, mute and standby)
  • Status I/O pin (class-H, class-B and fast mute)
  • All switching levels with hysteresis
  • Diagnostic pin with information about:
  • Dynamic Distortion Detector (DDD)
  • Any short-circuit at outputs
  • Open load detector
  • Temperature protection.
  • No switch-on or switch-off plops
  • Fast mute on supply voltage drops
  • Quick start option (e.g. car-telephony/navigation)
  • Low (delta) offset voltage at the outputs
  • Load dump protection
  • Short-circuit safe to ground, supply voltage and acrossthe load
  • Low power dissipation in any short-circuit condition
  • Protected against electrostatic discharge
  • Thermally protected
  • Flexible leads.

Schematic of the audio amplifier with TDA1562q

TDA1562 Schematic

Suggested printed circuit board TDA1562

TDA1562 PCB Layout
TDA1562 PCB silk


Part list for assembly audio power amplifier with integrated TDA1562 – 70 Watt power

Resistors 1/4 Watts 5%
R1100K –Brown, Black, Yellow, Gold
R25.6k – Green, Blue, Red, Gold
R31K – Brown, Black, Red, Gold
C1, C2470nF polyester film capacitor
C3, C4, C74700µF / 25Volts- electrolytic capacitor
C5, C810µF /25volts – electrolytic capacitor
C6100nF polyester film capacitor
IC1TDA1562Q IC NXP Semiconductors
D11N4004 – semiconductor diode
LED1Led high performance
FUSIVEL8A –Fast-acting fuse
JP1Key to toggle between mute and on.
BATPower Supply Connector
INAudio input connector
OUTAudio output connector
Wire, solder, printed circuit board, power supply or battery, heat sink, etc..

Download the PDF files for mounting the circuit tda1562: PDF PCB, Layout of components Schematic of the amplifier, Silk screen components, the TDA 1562 Datasheet

Download PDF    Mirror

Get new posts by email:
Follow us on social media

Buy IC TDA1562 With shipments worldwide


Video Tutorial – PCB Design For Manufacture

Dishpointer – Satellite Finder Dish Pointing Calculator with Google Maps


12 thoughts on “Car Audio amplifier circuit with IC TDA1562 – 70 W”

  1. Hi Toni,
    where can I get the kit to build on my on?
    Do you sell it? What does it cost? Shipping to Germany?

    Please send me an email.
    Jürgen B.

  2. hi toni,
    Thanks for your good work please keep it up.
    i am your big fan.
    can you tell me an other IC which i can use instead of TDA 1562. because it is not available in our area.
    WAiting for your good response.
    Once Again Thanks in Advance.


Leave a Comment

Crash Course Electronics and PCB Design
Crash Course Electronics and PCB Design
DC circuits, operational amplifiers, EXERCISES, SIMULATIONS
DC circuits, operational amplifiers, EXERCISES, SIMULATIONS