Overview
The TDA8953TH/N1,118 is a high-efficiency Class D audio power amplifier produced by NXP USA Inc. This integrated circuit is designed to deliver high output power with low power dissipation, making it suitable for various audio applications. The amplifier can operate in both stereo Single-Ended (SE) and mono Bridge-Tied Load (BTL) configurations, offering flexibility in system design. It features low quiescent current consumption and operates over a wide supply voltage range, enhancing its reliability and performance in different scenarios.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | HSOP24 (Heatsink Small Outline Package) | 24 leads, 15.9 mm x 11.0 mm x 3.0 mm |
| Output Power (SE) | 2 x 210 W into 4 Ω load (VDD = 41 V; VSS = -41 V) | 2 x 210 W |
| Output Power (BTL) | 1 x 420 W into 8 Ω load | 1 x 420 W |
| Efficiency | Approximately 93% into a 4 Ω load | 93% |
| Supply Voltage Range | ±12.5 V to ±42.5 V | ±12.5 V to ±42.5 V |
| Quiescent Current | Low quiescent current consumption | - |
| Operating Modes | Standby, Mute, Operating | Standby, Mute, Operating |
| Thermal Protection | Thermal FoldBack (TFB) and Overtemperature Protection (OTP) | TFB and OTP |
Key Features
- High output power in typical applications: up to 2 x 210 W in SE configuration and up to 1 x 420 W in BTL configuration.
- High efficiency of approximately 93% into a 4 Ω load.
- Low power dissipation and low quiescent current consumption.
- Wide supply voltage range from ±12.5 V to ±42.5 V.
- Three operating modes: Standby, Mute, and Operating.
- Advanced thermal protection strategy including Thermal FoldBack (TFB) and Overtemperature Protection (OTP).
- Audiophile sound quality comparable to Class AB amplification.
Applications
- Home audio systems: amplifiers for speakers and subwoofers.
- Car audio systems: high-power amplifiers for car speakers.
- Professional audio equipment: PA systems, stage monitors, and public address systems.
- Consumer electronics: DVD players, home theaters, and gaming consoles.
- Industrial audio systems: public address systems and alarm systems.
Q & A
- What is the maximum output power of the TDA8953TH in a stereo Single-Ended configuration?
The maximum output power is up to 2 x 210 W into a 4 Ω load.
- What is the maximum output power of the TDA8953TH in a mono Bridge-Tied Load configuration?
The maximum output power is up to 1 x 420 W into an 8 Ω load.
- What is the efficiency of the TDA8953TH?
The efficiency is approximately 93% into a 4 Ω load.
- What is the supply voltage range for the TDA8953TH?
The supply voltage range is from ±12.5 V to ±42.5 V.
- What are the operating modes of the TDA8953TH?
The operating modes are Standby, Mute, and Operating.
- How does the TDA8953TH protect against thermal issues?
The TDA8953TH employs Thermal FoldBack (TFB) and Overtemperature Protection (OTP) to protect against thermal issues.
- What type of package does the TDA8953TH come in?
The TDA8953TH comes in a HSOP24 (Heatsink Small Outline Package) with 24 leads.
- What are some common applications for the TDA8953TH?
Common applications include home audio systems, car audio systems, professional audio equipment, consumer electronics, and industrial audio systems.
- How does the TDA8953TH ensure pop noise-free start-up?
A slowly rising voltage should be applied to the MODE pin via an RC network to ensure pop noise-free start-up.
- What is the significance of the MODE pin in the TDA8953TH?
The MODE pin is used to switch the amplifier between Standby, Mute, and Operating modes, and it also controls the bias-current setting of the input stages.
