TS4621EIJT

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics:
  • Small form factor
  • Low power consumption
  • High efficiency
• Package: SOT-23-5
• Essence: This IC is designed to amplify audio signals with high fidelity and low distortion.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: 1.2W (4Ω load, 5V supply)
• Total Harmonic Distortion (THD): <0.1% (1kHz, 1W)
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TS4621EIJT has a total of 5 pins arranged as follows:

```

---

| | --| VDD OUT |-- --| GND IN- |-- --| SHDN IN+ |-- --| BIAS NC |-- |___________| ```

• VDD: Power supply pin (2.7V to 5.5V)
• OUT: Audio output pin
• GND: Ground pin
• IN-: Negative input pin
• IN+: Positive input pin
• SHDN: Shutdown control pin
• BIAS: Bias voltage pin (internally connected)
• NC: No connection pin

Functional Features

• Single-ended audio amplifier
• Low quiescent current consumption
• Shutdown mode for power saving
• Built-in thermal and short-circuit protection
• Excellent audio quality with low distortion and noise

Advantages and Disadvantages

Advantages: - Small size allows for compact designs - Low power consumption extends battery life - High efficiency reduces heat dissipation - Excellent audio quality with low distortion

Disadvantages: - Limited output power suitable for small audio applications - Requires external components for proper operation

Working Principles

The TS4621EIJT is a class AB audio amplifier that operates by amplifying the input audio signal using a combination of transistors and feedback circuitry. It utilizes a single-ended configuration, where the input signal is amplified relative to a fixed bias voltage. The amplified signal is then delivered to the output pin, providing an amplified audio signal with high fidelity and low distortion.

Detailed Application Field Plans

The TS4621EIJT is commonly used in various portable audio devices, such as smartphones, tablets, portable media players, and Bluetooth speakers. Its small form factor, low power consumption, and high efficiency make it ideal for space-constrained applications where battery life is crucial. Additionally, its excellent audio quality makes it suitable for applications requiring clear and accurate sound reproduction.

Detailed and Complete Alternative Models

• TS4620EIJT: Similar specifications and features, but with a different pin configuration (SOT-23-6 package).
• TS4622EIJT: Higher output power (2W) and improved THD performance, but with a slightly larger package (SOT-25).

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