Stk411210e Datasheet Link

The STK411-210E is a thick-film hybrid integrated circuit (IC) manufactured by Sanyo, specifically designed as a 2-channel AF power amplifier for split power supply applications. It is part of the broader STK411-200 series, which is known for its pin compatibility and ease of design in audio amplification systems. Core Specifications

Thermal management and reliability

Power amplifier modules dissipate significant heat. The datasheet provides thermal resistance figures (junction-to-case, case-to-ambient) and maximum junction temperatures. Practical considerations: stk411210e datasheet

| Pin No. | Function | Description | | :---: | :--- | :--- | | 1 | Input (Ch 1) | Audio Signal Input for Channel 1 | | 2 | NFB (Ch 1) | Negative Feedback input for Channel 1 | | 3 | Pre-GND | Ground for the pre-driver stage | | 4 | Pre-Vcc (-) | Negative Supply for pre-driver stage | | 5 | NFB (Ch 2) | Negative Feedback input for Channel 2 | | 6 | Input (Ch 2) | Audio Signal Input for Channel 2 | | 7 | Mute/Standby | Control pin for muting function | | 8 | Power GND | Ground for power output stage | | 9 | Output (Ch 2) | Speaker Output for Channel 2 | | 10 | Power Vcc (-) | Negative Power Supply for Ch 2 | | 11 | Power Vcc (+) | Positive Power Supply for Ch 2 | | 12 | Boot (Ch 2) | Bootstrap connection for Ch 2 | | 13 | NC | No Connection | | 14 | Boot (Ch 1) | Bootstrap connection for Ch 1 | | 15 | Power Vcc (+) | Positive Power Supply for Ch 1 | | 16 | Power Vcc (-) | Negative Power Supply for Ch 1 | | 17 | Output (Ch 1) | Speaker Output for Channel 1 | | 18 | Pre-Vcc (+) | Positive Supply for pre-driver stage | The STK411-210E is a thick-film hybrid integrated circuit

Recommended Bill of Materials (per channel):

  • Rin: 1.8kΩ (1/4W)
  • Rf (Feedback): 56kΩ (1/4W)
  • Rg (Input ground): 22kΩ (1/4W)
  • C Bootstrap: 100µF (50V)
  • Coupling Caps: 4.7µF (Non-polarized film cap on input)

Overview of the STK411210E IC

STK411-210E – Datasheet Review (Inferred from Series Specs)

1. Device Type & Topology

Audio Performance: Features a low Total Harmonic Distortion (THD) of approximately 0.08% to 0.4% depending on the specific application and load. Key Features Rin: 1

: The STK411-210E is often pin-compatible with other models in the STK411 series (like the STK411-220E