IRS20955S

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IRS20955S

Gate Drivers

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  • Mfr. Partie #IRS20955S
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  • Fiche de données
  • En stock15751

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Spécifications

Vue d'ensemble

Description

The IRS20955S is a high-performance digital audio amplifier driver IC designed for Class D amplifiers. It is commonly used in audio applications due to its ability to efficiently convert digital audio signals into analog outputs. The chip features a built-in PWM (Pulse Width Modulation) modulator, which allows for precise control of output power and improved audio performance. It includes integrated protection features such as overcurrent, overtemperature, and undervoltage lockout to enhance reliability.
The IRS20955S supports high switching frequencies, typically in the range of 300 kHz to 1 MHz, allowing for compact designs and reduced output filter size. Its differential input stage and feedback loop ensure low distortion and high fidelity in audio reproduction. The IC is suitable for a variety of applications, including home audio systems, professional audio equipment, and automotive sound systems, making it a versatile choice for designers looking to create efficient and powerful audio solutions.

Features

The IRS20955S is a high-performance audio amplifier driver IC designed for Class D amplifiers. Key features include:
1. High Voltage Capability: Operates up to 200V, making it suitable for high-power applications.
2. Integrated Gate Drivers: Dual high- and low-side gate drivers facilitate efficient control of external MOSFETs.
3. PWM Modulation: Supports pulse width modulation for improved audio quality and efficiency.
4. Short-Circuit Protection: Includes built-in protections against overcurrent conditions.
5. Thermal Shutdown: Monitors temperature to prevent overheating, ensuring reliable operation.
6. Low Distortion: Delivers high fidelity with low total harmonic distortion (THD).
7. Flexible Power Supply: Accepts a wide range of supply voltages, enhancing versatility.
8. Internal Bootstrap Circuit: Simplifies the design of high-side drive requirements.
These features make the IRS20955S ideal for high-efficiency audio amplification applications in consumer and professional audio systems.

Package

The IRS20955S is typically available in a 10-lead VSOIC (Very Small Outline Integrated Circuit) package. It is designed for efficient heat dissipation and compact applications in power electronics.

Pinout

The IRS20955S is a high-voltage, high-speed, class D audio amplifier driver IC. It features a 16-pin package (SOIC-16).
Pin Functions:
1. VCC: Supply voltage for the IC.
2. GND: Ground reference.
3. COM: Common node for the output stage.
4. HO: High-side gate drive output.
5. LO: Low-side gate drive output.
6. VB: Bootstrap voltage for high-side driver.
7. VS: Source of the high-side MOSFET.
8. CSN: Current sense negative input.
9. CSP: Current sense positive input.
10. RT: Timing resistor connection for oscillator.
11. CT: Timing capacitor connection for oscillator.
12. SD: Shutdown input.
13. OS: Over-temperature shutdown input.
14. FILT: Filtering capacitor connection.
15. RAMP: Ramp voltage input for modulation.
16. SENSE: Feedback input for modulation.
This IC is primarily used in audio amplification applications for driving speakers efficiently.

Manufacturer

The IRS20955S is manufactured by Infineon Technologies AG, a global semiconductor company based in Germany. Infineon specializes in providing a wide range of semiconductor solutions, including power management, automotive, industrial, and security applications. They are known for their innovative technologies in areas such as power electronics, automotive systems, and microcontrollers, serving various industries including automotive, industrial, and consumer electronics. The IRS20955S itself is a high-voltage, high-speed power amplifier driver, commonly used in audio and motor control applications.

Application

The IRS20955S is a high-voltage, high-frequency half-bridge driver primarily used in applications such as Class D audio amplifiers, induction heating, and other power conversion systems. Its features enable efficient control of power MOSFETs or IGBTs in switch-mode power supplies and motor drives, enhancing performance and reducing electromagnetic interference.

Equivalent

Equivalent products to the IRS20955S chip include the IRS20957 and IRS20961. These chips also serve as high-voltage driver ICs for Class D audio amplifiers and share similar functionalities and specifications, though you should verify pin compatibility and performance requirements for specific applications. Always consult the manufacturer's datasheets for precise comparisons.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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