Overview
The TS4871ID, produced by STMicroelectronics, is a high-performance audio power amplifier designed for a wide range of audio applications. This component is capable of delivering 1 W of continuous RMS output power into an 8 Ω load at a supply voltage of 5 V. It features ultra-low distortion and noise, making it suitable for high-quality audio systems. The TS4871ID operates within a voltage range of 2.5 V to 5.5 V, ensuring versatility in various power supply scenarios. Additionally, it includes a standby mode that reduces the supply current to less than 10 nA, enhancing power efficiency.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| VCC Operating Voltage | 2.5 | 5.5 | V | |
| Output Power (THD = 1%, f = 1 kHz, RL = 8 Ω) | 1 | W | ||
| Supply Current (No input signal, no load) | 5.5 | 8 | mA | |
| Standby Current (No input signal, VSTDBY = VCC, RL = 8 Ω) | 10 | 1000 | nA | |
| Total Harmonic Distortion + Noise (PO = 250 mWrms, Gv = 2, 20 Hz < f < 20 kHz, RL = 8 Ω) | 0.15% | |||
| Power Supply Rejection Ratio (f = 217 Hz, RL = 8 Ω, RFeed = 22 kΩ, Vripple = 200 mVrms) | 75 dB | |||
| Phase Margin at Unity Gain (RL = 8 Ω, CL = 500 pF) | 70 | Degrees | ||
| Gain Margin (RL = 8 Ω, CL = 500 pF) | 20 | dB | ||
| Gain Bandwidth Product (RL = 8 Ω) | 2 | MHz |
Key Features
- Operating voltage range from 2.5 V to 5.5 V
- 1 W rail-to-rail output power at VCC = 5 V, THD = 1%, f = 1 kHz, with 8 Ω load
- Ultra-low consumption in standby mode (less than 10 nA)
- High power supply rejection ratio (PSRR) of 75 dB at 217 Hz
- Ultra-low pop and click noise
- Ultra-low distortion (0.1% THD + N)
- Unity gain stable
- Internal thermal shutdown protection
- Available in SO8 and MiniSO8 packages
Applications
- Mobile phones (cellular / cordless)
- Laptop / notebook computers
- PDAs
- Portable audio devices
Q & A
- What is the maximum output power of the TS4871ID at 5 V supply voltage?
The TS4871ID can deliver up to 1 W of continuous RMS output power into an 8 Ω load at a supply voltage of 5 V.
- What is the operating voltage range of the TS4871ID?
The TS4871ID operates within a voltage range of 2.5 V to 5.5 V.
- How much current does the TS4871ID consume in standby mode?
In standby mode, the TS4871ID consumes less than 10 nA.
- What is the total harmonic distortion + noise (THD + N) of the TS4871ID?
The THD + N is 0.15% for PO = 250 mWrms, Gv = 2, 20 Hz < f < 20 kHz, RL = 8 Ω.
- What is the power supply rejection ratio (PSRR) of the TS4871ID?
The PSRR is 75 dB at 217 Hz, RL = 8 Ω, RFeed = 22 kΩ, Vripple = 200 mVrms.
- Is the TS4871ID unity gain stable?
Yes, the TS4871ID is unity gain stable.
- What are the available packages for the TS4871ID?
The TS4871ID is available in SO8 and MiniSO8 packages.
- What are some common applications of the TS4871ID?
Common applications include mobile phones, laptop/notebook computers, PDAs, and portable audio devices.
- Does the TS4871ID have internal thermal shutdown protection?
Yes, the TS4871ID includes internal thermal shutdown protection.
- How does the standby mode affect the power consumption of the TS4871ID?
In standby mode, the power consumption is reduced to less than 10 nA.
