GENERAL DESCRIPTION
The TDA8559 is a stereo amplifier that operates over a wide supply voltage range from 1.9 to 30 V and consumes a very low quiescent current. This makes it suitable for battery fed applications (2 × 1.5 V cells). Because of an internal voltage buffer, this device can be used with or without a capacitor connected in series with the load. It can be applied as a headphone amplifier, but also as a mono amplifier with a small speaker (25 Ω), or as a line driver in mains applications.

FEATURES
• Operating voltage from 1.9 to 30 V
• Very low quiescent current
• Low distortion
• Few external components
• Differential inputs
• Usable as a mono amplifier in Bridge-Tied Load (BTL) or stereo Single-Ended (SE)
• Single-ended mode without loudspeaker capacitor
• Mute and standby mode
• Short-circuit proof to ground, to supply voltage (<10 V) and across load
• No switch on or switch off clicks
• ESD protected on all pins.

APPLICATIONS
• Portable telephones
• Walk-mans
• Portable audio
• Mains fed equipment