The TDA7565 is a quad power amplifier with an integrated step-up converter. It utilizes multipower BCD technology and DMOS power output, providing a non-switching high efficiency amplifier and a switching high efficiency voltage converter. It has a high output power capability, with a maximum of 4 x 41 W @ Vs = 14.4 V and 4 x 59 W @ Vs = 14.4 V and PWM = 17.5 V. The amplifier supports full I2C bus driving, with various functions such as standby, independent front/rear soft play/mute, selectable gain, high efficiency enable/disable, voltage converter enable/disable, regulated voltage selection, and switching frequency selection. It also features a hardware mute function, full fault protection, DC offset detection, four independent short circuit protection, and a clipping detector with selectable threshold via I2C bus.
The document describes the TDA7565, a new BCD technology quad bridge type car radio amplifier in Flexiwatt27 package. It features DMOS output stages and a built-in voltage converter control block to ensure high output power with minimal added components.
Key capabilities include full 2C bus driving for standby, independent front/rear soft play/mute, selectable gain (26 dB - 12 dB), and various enable/disable functions. The device includes hardware mute, full fault protection, DC offset detection compliant with recent OEM specifications, and four independent short circuit protections optimized for low voltage 'start-stop' battery profiles.
| Output power (Max, VCC=14.4V) | 4 x 59 W |
|---|---|
| Supply voltage range (Converter off) | -8 to 18 V |
| Voltage gain (Selectable) | 26 dB - 12 dB |
| Power bandwidth (-3 dB) | 75 kHz |
The device comes in a Flexiwatt27 package.
Yes, it features four independent short circuit protections for low voltage operation (so called 'start-stop').
The maximum output power is 59W per channel when VCC is 14.4V.