Stk411-210e Datasheet |work| Site
The STK411-210E is a 2-channel power amplifier IC, designed for use in audio equipment such as stereo amplifiers, home stereos, and other sound systems. It's a highly efficient, reliable, and compact solution for amplifying audio signals.
External crowbar or relay circuits should monitor the output pins. If a transistor fails and leaks DC voltage, the protection circuit disconnects the speakers to prevent damage. If you need more details, please Share public link
Since the STK411-210E is discontinued, sourcing options include:
use a high-quality aluminum heatsink with thermal paste. Running it without a heatsink will cause immediate failure. Short Circuit Protection:
Typically operates with a supply voltage around ±40V , providing high dynamic range and headroom. Stk411-210e Datasheet
Inverting input nodes used to configure the closed-loop voltage gain, typically set around via an external resistor network.
) requires thermal grease and a flat mechanical surface to prevent thermal runaway under heavy Crucial External Sub-Circuits
The module features a 22-pin pitch footprint. To ensure stability, high-current traces (VCC, Ground, Speaker Outputs) must feature heavy PCB copper pours, while low-signal traces (Audio Inputs, Feedback) must remain physically isolated to avoid induction hum.
: Standard range of 12V to 48V , with a typical supply voltage of ±40V for optimal performance. The STK411-210E is a 2-channel power amplifier IC,
During the research for this article, an online listing for the STK411-210E describes it not as an audio amplifier, but as a .
Based on the detailed datasheet (Ordering number: EN2322B) for the STK4112II (the equivalent base model), the STK411-210E is rated at into an 8Ω load. There is conflicting information online regarding power ratings; some sources incorrectly cite much higher figures (e.g., 100W). Based on the official Sanyo datasheet, the correct power rating is 10W x 2 channels .
It is designed for prolonged, long-term use provided it operates within its recommended voltage and thermal limits. Thermal Management:
The STK411-210E functions using a split (dual) power supply architecture to maximize headroom and thermal management. Key electrical and thermal parameters outlined in the original engineering datasheet include: : Class-AB Hybrid IC Channels : 2 independent audio channels (Stereo) Package Type : ZIP-22 (Zig-Zag In-line Package, 22 pins) Operating Temperature Range : -40∘Cnegative 40 raised to the composed with power C +105∘Cpositive 105 raised to the composed with power C TAcap T sub cap A Recommended Load Impedance : (nominal stable load) Total Harmonic Distortion (THD) : at rated audio output Frequency Response : Typical Absolute Maximum Ratings If a transistor fails and leaks DC voltage,
Designed to interface easily with external protection relays to prevent damage from shorted speaker terminals. 2. Technical Specifications (Absolute Maximum Ratings)
The STK411-210E usually features a 22-pin or similar SIP (Single In-line Package) layout. While you should always verify with the physical datasheet diagram, the standard pin functions include: Channel 1 and Channel 2 signal inputs. Feedback Pins: For setting the gain of the amplifier. Power Rails: +Vccpositive cap V sub c c end-sub −Vccnegative cap V sub c c end-sub , and Ground ( GNDcap G cap N cap D Output Pins: Connection to the speaker terminals.
| Pin No. | Symbol | Description | |---------|-------------|--------------------------------------| | 1 | CH1 IN (+) | Non-inverting input (Channel 1) | | 2 | GND | Signal ground | | 3 | Vcc | Positive power supply (+Vcc) | | 4 | CH1 OUT | Speaker output (Channel 1) | | 5 | GND | Power ground | | 6 | Vee | Negative power supply (-Vcc) | | 7 | CH2 OUT | Speaker output (Channel 2) | | 8 | GND | Signal ground | | 9 | CH2 IN (+) | Non-inverting input (Channel 2) | | 10 | N/C | Not connected | | 11 | N/C | Not connected | | 12 | Vcc2 | Positive supply (internal driver) | | 13 | N/C | Not connected | | 14 | Vee2 | Negative supply (internal driver) | | 15 | GND | Substrate ground |
The STK411-210E is notable for being a , RoHS-compliant component, reflecting the industry's shift towards more environmentally friendly manufacturing practices.
Reduces "pop" noise during power-on and power-off sequences. Thermal Protection:
