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STK4145MK2
Dimensions: 78 x 9 mm, Height: 44 mm
STK4145MK2
Dimensions: 78 x 9 mm, Height: 44 mm
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STK4145MK2 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The STK4145MK2 is a hybrid IC module mainly used in audio amplifiers. It consists of two-channel AF power amplifier circuits with a built-in thermistor, thermal shutdown, and output short detection features. The operating voltage range of the STK4145MK2 is ±30V, making it suitable for a variety of audio applications.The IC module has a maximum output power of 40 watts per channel when operating on a 0.8-ohm load at 1 kHz with a 10% total harmonic distortion. It has a frequency response range of 20 Hz to 20 kHz, allowing for a wide range of audio signals to be amplified effectively.The STK4145MK2 is designed to be compact and easy to use, with a pin configuration that simplifies the integration process into audio amplifier circuits. It also features protection circuits to prevent damage from overheating and short circuits, ensuring reliable performance and longevity.
Key Features
- 4-channel class AB audio amplifier
- 25W output power per channel
- Low distortion and noise
- Built-in protection circuitry
- Wide voltage range (12-30V)
- Thermal shutdown protection
- Short-circuit protection
- Flexible DC offset detection circuit
Application
- Home stereo systems
- Car audio systems
- Portable speakers
- Guitar amplifiers
- DJ equipment
- Public address systems
- Musical instruments
- Soundbars
- Recording studios
- Television sound systems
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | No | Part Life Cycle Code | Obsolete |
| Part Package Code | SIP | Pin Count ! | 22 |
| Reach Compliance Code | ECCN Code | EAR99 | |
| HTS Code ! | 8542.33.00.01 | Consumer IC Type | AUDIO AMPLIFIER |
| Harmonic Distortion | 0.4% | JESD-30 Code | R-PSIP-T22 |
| JESD-609 Code | e0 | Length | 78 mm |
| Number of Channels | 2 | Number of Functions | 2 |
| Number of Terminals | 22 | Output Power-Nom | 25 W |
| Package Body Material | PLASTIC/EPOXY | Package Code | SIP |
| Package Equivalence Code | SIP22,.2 | Package Shape | RECTANGULAR |
| Package Style | IN-LINE | Qualification Status ! | Not Qualified |
| Supply Voltage-Max (Vsup) | 27 V | Surface Mount ! | NO |
| Technology | HYBRID | Terminal Finish | TIN LEAD |
| Terminal Form ! | THROUGH-HOLE | Terminal Pitch ! | 2.54 mm |
| Terminal Position | SINGLE | Width | 9 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is STK4145MK2?
The STK4145MK2 is a hybrid integrated circuit (IC) designed for use in audio power amplifiers. It is manufactured by Sanyo, which is now a part of ON Semiconductor. The STK4145MK2 is specifically designed for high-quality audio applications, such as stereo amplifiers and home theater systems.
How Does STK4145MK2 Work?
The STK4145MK2 works by amplifying audio signals with high fidelity and power. It integrates multiple components, including power transistors and preamplifier circuits, into a single package. The IC is designed to deliver high output power while maintaining low distortion and high efficiency, making it suitable for demanding audio applications.
How Many Pins does STK4145MK2 have and What are the Functions of the Pinout Configuration?
The STK4145MK2 is housed in a multiwatt 15-lead package. The pinout configuration includes:
- VCC: Positive supply voltage pin.
- VCCO: Collector supply voltage pin for the output stage.
- VCC1: Positive supply voltage pin for the preamplifier stage.
- VCCE: Emitter supply voltage pin for the preamplifier stage.
- GND: Ground pin.
- INPUT: Audio input pin.
- OUTPUT: Audio output pin.
- Several other pins for bias adjustment, mute control, and protection circuitry.
What are the Pros and Cons of STK4145MK2?
Pros:
- Integrated Design: Combines power transistors and preamplifier circuits into a single package, simplifying amplifier design.
- High Power Output: Capable of delivering high output power for demanding audio applications.
- Low Distortion: Maintains low distortion to preserve audio quality.
- Protection Circuitry: Includes built-in protection features for reliable operation and safety.
- Compact Package: The multiwatt 15-lead package offers a space-efficient solution for amplifier designs.
Cons:
- Heat Dissipation: May require external heat sinks for thermal management, especially at high output power levels.
- Complex Bias Adjustment: Requires careful bias adjustment for optimal performance and reliability.
- External Components: Additional external components such as capacitors and resistors may be required for proper circuit operation.
Are There Any Equivalents/Alternatives to STK4145MK2 for Recommendation?
Similar hybrid audio amplifier ICs include the STK419-140A from Sanyo and the TDA7294 from STMicroelectronics.
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