Professional IC Distribution & Technical Solutions

The STK390-910 is a hybrid IC (Integrated Circuit) manufactured by SANYO, designed for high-power audio amplification applications. Below are its key specifications, descriptions, and features:

Specifications:

• Type: Thick-film Hybrid IC (Power Amplifier)
• Maximum Supply Voltage (VCC): ±90V
• Output Power (PO): 100W (min) at 8Ω, ±50V
• Quiescent Current (ICC): 50mA (typical)
• Total Harmonic Distortion (THD): 0.08% (typical at 1kHz, 50W)
• Frequency Response: 20Hz–20kHz (±1dB)
• Input Resistance (Rin): 47kΩ
• Gain (Gv): 30dB (typical)
• Operating Temperature Range: -30°C to +85°C
• Package Type: SIP (Single In-line Package) with heat sink

Descriptions:

• The STK390-910 is a monolithic power amplifier IC optimized for high-fidelity audio applications.
• It incorporates built-in thermal protection and short-circuit protection for reliability.
• Designed for stereo amplifiers, home audio systems, and professional audio equipment.
• Requires an external heat sink for efficient thermal dissipation.

Features:

• High Power Output: Capable of delivering up to 100W into an 8Ω load.
• Low Distortion: Ensures high-quality audio reproduction.
• Wide Operating Voltage Range: Supports ±90V for flexible power supply configurations.
• Built-in Protections: Includes thermal shutdown and overcurrent protection.
• Compact SIP Package: Facilitates easy PCB mounting and heat dissipation.

This IC is now considered obsolete, as SANYO discontinued its production. Alternative replacements may be required for modern applications.

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