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TDA1553Q from PHILIPS

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TDA1553Q

Manufacturer: PHILIPS, PHI

2 x 22 W BTL stereo car radio power amplifier with loudspeaker protection

Partnumber Manufacturer Quantity Availability
TDA1553Q PHILIPS, PHI 53 In Stock

Description and Introduction

2 x 22 W BTL stereo car radio power amplifier with loudspeaker protection The TDA1553Q is an integrated circuit (IC) manufactured by PHILIPS (now NXP Semiconductors). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 2 x 22 W (at 10% THD, 4 Ω load, 14.4 V supply)  
- **Operating Voltage Range:** 6 V to 18 V  
- **Load Impedance:** 4 Ω (minimum)  
- **Total Harmonic Distortion (THD):** 10% (typical at max power)  
- **Signal-to-Noise Ratio (SNR):** > 70 dB  
- **Package Type:** Multiwatt15 (15-pin vertical power package)  
- **Muting and Standby Functions:** Yes  

### **Descriptions:**  
The TDA1553Q is a dual-channel (stereo) audio power amplifier designed for car radio and other automotive audio applications. It provides high output power with built-in protection features such as short-circuit protection and thermal shutdown.  

### **Features:**  
- **High Output Power:** Capable of delivering 2 x 22 W into 4 Ω speakers.  
- **Wide Supply Voltage Range:** Operates from 6 V to 18 V, making it suitable for automotive use.  
- **Low Standby Current:** Reduces power consumption when not in use.  
- **Mute Function:** Allows muting the audio output when needed.  
- **Protection Circuits:** Includes thermal shutdown and short-circuit protection.  
- **Few External Components Required:** Simplifies circuit design.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

2 x 22 W BTL stereo car radio power amplifier with loudspeaker protection

Alternative Part Number

  • TDA1554Q --: Same Philips/NXP TDA155x family Class-B car audio amplifier in a 13-pin DIL-bent-sil package; higher output power and pin-compatible enough for most TDA1553Q designs.
  • TDA1552Q --: Closely related Philips TDA155x dual/quad audio power amplifier with similar supply range and package, suitable as a drop-in substitute where slightly lower output power is acceptable.
  • LM1875 --: Widely available single-channel Class-AB audio power amplifier with comparable supply voltage and output power; requires minor circuit adaptation but is a common functional replacement when TDA1553Q is unavailable.
  • TDA8560Q --: Later-generation Philips car radio power amplifier with similar supply range and output power class; commonly used as an upgrade/replacement in 12V automotive audio designs where the TDA1553Q is obsolete.
  • TDA7377 --: Quad Class-AB car audio amplifier with comparable 12V operation and output power, from a different manufacturer and series, offering a feasible functional alternative when the original Philips device is unavailable.

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