IRS2092PBF

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IRS2092PBF Audio Linear Amplifiers Overview

The IRS2092PBF is a monolithic integrated circuit that combines an amplifier, buffer and power output stages with a number of other features. It is mainly used in automotive audio amplifier applications and can drive up to 4 channels with a maximum output power of 250 Watts. The device is capable of accepting input signals with a wide range of frequencies, amplifying them and driving into resistive loads such as speakers with ease. The board is designed to be compact, cost effective and flexible to meet the needs of OEMs and audio system integrators.

Specifications

• Supply Voltage (Vdd): 8.25 - 14V
• Supply Current (Idd): 2.6A
• Input Voltage (Vin): 2.3V - 7V
• Input Gain (Gain): +6dB per Volt
• Output Voltage (Vout): 18V maximum
• Output Power: 250 Watts/Channel
• Extended Temperature Range: -40°C to +85°C

Features

• ”Bridge-Tied-Load” (BTL) connection
• Low-noise operation
• Thermal and short-circuit protection
• Wide supply voltage range
• High quiescent current
• Low output impedance
• High output slewing rate
• Dynamic headroom control
• On-board trimming

Pin Configuration

The IRS2092PBF is a 12-pin device with two power output pins (Vb+ and Vb-), four digital control pins (Re+, Re-, Ct+ and Ct-), four headroom pins (H1+, H1-, H2+ and H2-) and two ground pins. The power output pins are connected to the power supplies, while the other pins are used to control the gain and frequency response of the device.

Application

The IRS2092PBF is suitable for use in a wide range of amplifier designs, enabling OEMs and audio system integrators to create multi-channel car audio amplifiers with excellent performance and reliability. The device can be used in bridge-tied-load (BTL) configurations, allowing for higher power outputs, as well as in single-ended applications. The device can be implemented in single-ended designs by using one pair of H1 and H2 pins as inputs and one pair as outputs, allowing for up to four channels of output.

Working Principle

The working principle of the IRS2092PBF is based on the principle of negative feedback. It is an amplifier with a gain of +6dB/V and a wide input frequency range. The device works by taking the input signal from an audio source and amplifying it using an internal power amplifier. The output is then buffered using an internal buffer stage and the signal is sent to a power output stage. The power output stage is designed with a low output impedance and a high slew rate, allowing for excellent sound quality and minimum distortion. The device also has several features, such as thermal and short-circuit protection, dynamic headroom control, and on-board trimming.

Conclusion

The IRS2092PBF is a powerful and versatile integrated circuit designed for audio system applications. It is a monolithic IC that combines an amplifier, buffer and power output stages into a single device. It is ideal for use in high-power automotive audio amplifier designs, enabling OEMs and audio system integrators to create multi-channel car audio systems with high quality sound, low distortion, and excellent reliability.

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