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STA516BE：500W FFX Digital Amplifier Power Stage

STA516BE is a monolithic quad half-bridge stage in Multipower BCD Technology. The device can be used as dual bridge or reconfigured, by connecting pin CONFIG to pins VDD, as a single bridge with double-current capability or as a half bridge (binary mode) with half-current capability.

A cost-effective, high fidelity audio system can be designed using ST chipset, including a modulator (e.g. STA309A or STA321) and the STA516BE. This system only requires a simple passive LC demodulation filter to deliver high-quality, high efficiency audio amplification with prove EMI compliance. The efficiency of this digital amplifier is greater than 90% into 8 Ω speakers, enabling the use of smaller power supplies and heatsinks.

The STA516BE has an innovative integrated protection system, safeguarding the device against different fault conditions that could damage the overall system.

Key Features

• Output Power at 56 V supply voltage
  • 2 x 250 W at 10% THD + N into 6 Ω BTL
  • 2 x 200 W at 10% THD + N into 8 Ω BTL
  • 4 x 130 W at 10% THD + N into 3 Ω SE
  • 4 x 100 W at 10% THD + N into 4 Ω SE
  • 1 x 480 W at 10% THD + N into 3 Ω PBTL
  • 1 x 380 W at 10% THD + N into 2 Ω PBTL
• Output Power at 52 V supply voltage
  • 2 x 200 W at 10% THD + N into 6 Ω BTL
  • 4 x 100 W at 10% THD + N into 3 Ω SE
  • 1 x 400 W at 10% THD + N into 2 Ω PBTL
• < 0.1% THD + N at 1 W
• PSO-36 thermally enhanced package
• Minimum input / output pulse width distortion
• High efficiency power stage (> 90%) with 190 mΩ RdsON
• CMOS compatible logic inputs
• Integrated self protection circuits including overtemperature, undervoltage, overvoltage, overload, short-circuit
• EMI compliant when used with recommended system design
• Automatic recovery mode after fault conditions

Product Specifications

Application Notes

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