4440 Bridge Mode Amplifier Circuit

The CD4440 or LA4440 is a popular IC among audio enthusiasts and professionals for crisp, clear, powerful sound output and it's user-friendly pin configuration . This IC ideal for wide range of audio devices like home audio system ,car stereo ,constructing a portable speaker etc. It is two-channel audio amplifier IC with dual channels built-in. It produces 6 W per channel in stereo amplifier applications and 19 W in bridge mode. 

 

This blog post discussed about the concept of bridge mode amplification and explore the 4440 Bridge Mode Amplifier Circuit.

What is Bridge-Tied Load (BTL) Amplifier Circuit

A Bridge Mode Amplifier Circuit operates by utilizing two amplifier channels in a specific configuration known as a Bridge-Tied Load (BTL).This setup effectively bridges the outputs of two amplifier channels, resulting in increased output power across the load. The 4440 audio ic can be used in a Bridge-Tied Load (BTL) configuration, which involves using two channels of this IC in a bridge setup to increase power output to a single channel. In bridge mode use 4Ω-8Ω speaker & its output power is 19w.

Key features of the 4440 IC

Power Output
⇒The power output will depend on the supply voltage load impedance.
⇒Dual-channel Mode- 6 to10 watts per channel
⇒Bridge mode- 19 W
Output Configuration
⇒Generates low pop noise
⇒Ripple rejection -46db
⇒Small residual noise
⇒Low distortion
Protection

⇒Short-circuit protection
⇒Thermal shutdown
⇒Overcurrent protection
Supply Voltage
⇒6V to 15V DC

Heat Dissipation
⇒Heat sinking must required for prevent overheating of the IC

Pin Configuration of 4440

 

Components Required for 4440 Bridge Mode Amplifier Circuit

Electrolytic Capacitors

⇨100 μF/25v-4 pcs
⇨470 μF/25v-1 pcs
⇨2200 μF/25v-1 pcs
Polyester Film Capacitor
⇨0.1 μf (104)-1 pcs
⇨0.001 μf (102)-2 pcs
Resistors
⇨2.2 Ω-2 pcs
⇨150 Ω-1 pcs
⇨220 Ω-1 pcs
⇨10 KΩ-1 pcs
⇨15KΩ-2 pcs

 

👉Click Here -4440 Stereo Amplifier Circuit

Complete Circuit Diagram of 4440 Bridge Mode Amplifier

 

Click on the Download buttons to download the Circuit Diagram of 4440 Bridge Mode Amplifier Circuit.

👉Click Here- Other Amplifier Project

Step by step video tutorial of 4440 Bridge Mode Amplifier Circuit

 Frequently Asked Questions

What is a Bridge Mode Amplifier Circuit?

A Bridge Mode Amplifier Circuit is a configuration in which two channels of amplifier channels work together to drive single load, resulting in increased output power.

What is the advantage of using Bridge Mode Amplifiers?

The primary advantage of Bridge Mode Amplifiers is increase the output,these amplifiers can drive speakers more efficiently.