ST offers a complete class-AB product portfolio. As well as standard class-AB power amplifiers, ST proposes audio amplifiers in class SB (Single-ended Bridge) and SB-I (SB improved). As a result of their high efficiency, these classes reduce power dissipation by up to 50% compared to standard class AB, simplifying thermal management in current power sets. Moreover, ST has introduced a digital input to offer a clean sound, immune to external interferences. Amplifiers can now be directly connected to the DSP output without any signal conversion. ST also proposes amplifiers that are compatible with start-stop and hybrid engines.
ST's class-AB automotive audio amps offer:
- Clean, powerful audio
- A wide portfolio, single-channel devices to powerful quad-channel single-chip devices
- Robust designs with integrated protection against short circuits, ESD, load dumping, over-temperature
- Ability to drive very low impedance speakers (as low as 1 ohm)
- Products compliant with new stop-start engine and hybrid engine standards
- Optional I²C interface and diagnostics
- Optional digital input
- Optional augmented efficiency
Featured Videos
Power amplifier system for automotive applications
ST's complete family of “intelligent” analog automotive power amplifiers
ST offers a complete range of intelligent analog power amplifiers for automotive audio systems.
What makes these power amplifiers "intelligent" is their reliable diagnostics array that detects the status of each speaker and can identify any failure or speaker disconnection. Two- or four-channel versions with different power levels and features, like the automatic offset control, are available. The new generation has very high efficiency (class SB, class SB-I), consuming less than a standard class AB, a valid alternative to class D power amplifiers. Furthermore, ST is the only company offering an automotive analog power amplifier with a digital input. All our amplifiers are compatible with hybrid and start-stop engines, working with a battery of just 6V.
STPA008 enriches your listening experience
The STPA008 is the latest automotive-grade class AB analog input power amplifier of the STPA family designed to enrich the car audio listening experience. It embeds 4 audio channels able to deliver a maximum power of 50 W each, it can drive loads as low as 2 W and operate from 6 to 18 V without popping or interruption. This makes the product compatible with start-stop and hybrid vehicles. An exciting sound quality level is guaranteed by its particular architecture built using ST's exclusive BCD6sA smart power technology, specifically designed for audio performance. The STPA008 helps ensure excellent immunity against interference coming from mobile devices (the so-called “GSM effect”), saving input filtering components (capacitors, inductors). Radio manufacturers can further save components and space on the board since all features are integrated and the STPA008 offers extreme robustness against misconnections.
The product is available in both Flexiwatt25 and Flexiwatt27 packages.
- TDA7562B Intelligent quad BTL output power amplifier with full I2C diagnostics (permanent and ac) and stand-by/mute input
- TDA7561 Intelligent quad BTL output power amplifier with full I2C diagnostics (turn on, permanent)
- TDA7560 Hi-fi quad BTL output power amplifier with HDS/offset detection, stand-by and mute
- TDA7850 Quad BTL output with HSD/offset detection, stand-by and mute inputs
- TDA75610DLVPD Low voltage operation, high efficiency (class SB), differential input, intelligent quad BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7569BDLVPD Low voltage operation, high efficiency (class SB), differential input, intelligent quad BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7563A Intelligent high efficiency (class SB) quad BTL output with full I2C diagnostics (turn on, permanent, ac) and stand-by/mute input
- TDA7851A Quad BTL output with stand-by and mute inputs, clip and offset detection
- TDA7567PD Intelligent high efficient (class SB) differential input, quad BTL output with full I2C diagnostics (turn on, permanent, ac)
- TDA7851F Quad BTL output with stand-by and mute inputs, offset detection
- TDA7569BLV Low voltage operation, high efficiency (class SB), intelligent, quad BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7391LV Differential input, single BTL output power amplifier with st-by, clip detection and start stop compatibility
- STPA001 Low voltage operation, high sound quality quad BTL output power amplifier with st-by and mute inputs, clip and offset detection
- TDA75613LV Low voltage operation, high efficiency (class SB), intelligent, quad BTL output power amplifier with speaker safety routine (SSR), full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7576B Dual BTL output power amplifier for 24 V systems with hardware standby and mute, clip and offset detection
- TDA7851L Quad BTL output with stand-by and mute inputs, clip detection
- TDA7391 Differential input, single BTL output power amplifier with stand-by and clip detection
- TDA7575B Differential input, high efficiency (class SB) dual BTL output with full I2C diagnostics, clip detection, stand-by and mute inputs
- TDA7386 Quad BTL output power amplifier with stand-by and mute inputs
- TDA7385 Quad BTL output power amplifier with stand-by and mute inputs, clip detection
- TDA7384A Quad BTL output power amplifier with stand-by and mute inputs
- TDA7566 Intelligent quad BTL output with full I2C diagnostics
- STPA008 Low voltage operation, high sound quality BTL output power amplifier with excellent GSM noise immunity, clip and offset detection
- TDA2005 Single BTL or dual SE output amplifier
- TDA7396 Differential input, single BTL output power amplifier with clip detection
- TDA7803A High efficiency digital input automotive quad power amplifier with built-in diagnostics features, start stop compatible
- TDA7808 High efficiency digital input automotive quad power amplifier, start stop compatible
- TDA7391PD Differential input, single BTL output power amplifier with stand-by and clip detection
- TDA7850A Quad BTP output with HSD, offset detection , stand-by and mute inputs
- STPA002 Low voltage operation, high sound quality quad BTL output power amplifier with st-by and mute inputs, clip and offset detection
- TDA7802 Low voltage operation, digital input (I2S), improved high efficiency (class SB-I) quad BTL output power amplifier with full I2C diagnostics
- TDA7577BLV Low voltage operation, high efficiency (class SB), intelligent, dual BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA75612LV Low voltage operation, intelligent, quad BTL output power amplifier with speaker safety routine (SSR), full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7387 Quad BTL output power amplifier with stand-by and mute inputs
- TDA75616LV Low voltage operation, intelligent, quad BTL output power amplifier with speaker safety routine (SSR), full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA2004R Dual SE output power amplifier
- TDA7801 Digital input (I2S), quad BTL output power amplifier with full I2C diagnostics
- TDA7563B Intelligent high efficiency (class SB) quad BTL output with full I2C diagnostics (turn on, permanent, ac) and stand-by/mute input
- TDA7565 Intelligent high efficiency (class SB) quad BTL ouput with full I2C diagnostics, built in step up and mute input
- TDA7454 Quad BTL output, high efficiency (class SB) power amplifier with clip detection, stand-by and mute inputs
- TDA7381 Quad BTL output power amplifier with stand-by and mute inputs, clip detection
- TDA7376B Differential input, dual BTL output power amplifier with programmable clip detection
- TDA7376PD Differential input, dual BTL output power amplifier with programmable clip detection
- TDA7375V Quad SE or dual BTL output power amplifier with stand-by input and clip detection
- STPA003 Low voltage operation, high sound quality BTL output power amplifier with excellent GSM noise immunity, clip and offset detection
- TDA7375AV Dual SE or dual BTL output power amplifier with stand-by input and clip detection
- TDA7562BEP Intelligent quad BTL output power amplifier with full I2C diagnostics and stand-by/mute input
- TDA7564B Intelligent high efficiency (class SB) quad BTL ouput with full I2C diagnostics (turn on, permanent, ac)
- TDA75610SLV Low voltage operation, high efficiency (class SB), intelligent, quad BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7562 Intelligent quad BTL output power amplifier with full I2C diagnostics (permanent) and stand-by/mute input
- TDA7388A Quad BTL output power amplifier with stand-by and mute inputs, clip and offset detections
- TDA75610LV Low voltage operation, intelligent, quad BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute
- TDA7388 Quad BTL output power amplifier with stand-by and mute
