Overview
The TDA1554Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) plastic power package. The circuit contains 4 x 11 W single-ended or 2 x 22 W bridge amplifiers. The device is primarily developed for car radio applications but can be used to design home audio applications.
Key benefits
• Requires very few external components
• Flexibility in use − Quad single-ended or stereo BTL
• High output power
• Low offset voltage at outputs (important for BTL)
• Fixed gain
• Good ripple rejection
• Mute/stand-by switch
• Load dump protection
• AC and DC short-circuit-safe to ground and VP
• Thermally protected
• Reverse polarity safe
• Capability to handle high energy on outputs (VP = 0 V)
• Protected against electrostatic discharge
• No switch-on/switch-off plop
• Low thermal resistance
• Identical inputs (inverting and non-inverting)
Circuit Diagram
Parts Required
C1- 2200 uf
C2- 100 nf
C7,C8 – 220 u
U2 and U3 – 4 Ohm speaker
Power Supply – 12v
Parts required
C9,C10,C14,C15 – 220 u
C11- 100 nf
C12 – 2200 uf
SP1,Sp2, Sp4, Sp4- 4 Ohm speaker
Power supply – 12v
Note: A special feature of this device is: Mute/stand-by switch. This can be added between Ping 14 and Pin 5
