Overview
The IRS20957STRPBF is a high-voltage, high-speed MOSFET driver IC designed specifically for Class D audio amplifier applications. Manufactured by Infineon Technologies, this component is optimized for use in high-performance audio systems. It features a floating PWM input, which simplifies the implementation of half-bridge configurations, and includes advanced protection mechanisms to ensure reliable operation.
Key Specifications
| Parameter | Value |
|---|---|
| Topology | Half-Bridge |
| V OFFSET (max) | ± 100 V |
| IO+ & IO- (typical) | 1.0 A & 1.2 A |
| Selectable Dead-Time | 15/25/35/80 ns |
| Ton & Toff (typical) | 95 ns & 80 ns |
| OC Protection Delay | 500 ns (max) |
| Shutdown Propagation Delay | 250 ns (max) |
| Logic Compatibility | 3.3 V / 5 V |
| Package Type | SOIC16N |
Key Features
- Floating PWM input enables easy half-bridge implementation.
- Programmable bidirectional over-current protection with self-reset function.
- Programmable preset dead-time for improved THD performances.
- High noise immunity.
- ±100V ratings deliver up to 500W in output power.
- 3.3 V / 5 V logic compatible input.
- Operates up to 800 kHz.
- Built-in protection control block provides a secure protection sequence against over-current conditions.
- Internal dead-time generation block for accurate gate switching and optimum dead-time setting.
Applications
- Home theatre systems.
- Mini component stereo systems.
- Powered speaker systems.
- General purpose audio power amplifiers.
Q & A
- What is the primary application of the IRS20957STRPBF?
The IRS20957STRPBF is primarily used in Class D audio amplifier applications. - What is the maximum V OFFSET for the IRS20957STRPBF?
The maximum V OFFSET is ± 100 V. - What are the typical current ratings for IO+ and IO-?
The typical current ratings are 1.0 A for IO+ and 1.2 A for IO-. - What are the selectable dead-time values?
The selectable dead-time values are 15/25/35/80 ns. - What is the maximum over-current protection delay?
The maximum over-current protection delay is 500 ns. - Is the IRS20957STRPBF compatible with 3.3 V and 5 V logic?
Yes, it is compatible with both 3.3 V and 5 V logic. - What is the maximum operating frequency of the IRS20957STRPBF?
The IRS20957STRPBF operates up to 800 kHz. - What type of package does the IRS20957STRPBF come in?
The IRS20957STRPBF comes in a SOIC16N package. - What are some typical applications of the IRS20957STRPBF?
Typical applications include home theatre systems, mini component stereo systems, powered speaker systems, and general purpose audio power amplifiers. - Does the IRS20957STRPBF have built-in over-current protection?
Yes, it has programmable bidirectional over-current protection with a self-reset function.
