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Infineon Technologies IRS20957S
Protected Digital Audio Driver with Floating PWM input in a 16-Lead SOIC Narrow Package
Overview
| Topology | Half-Bridge Converter symmetrical isolated |
| Switching frequency | 800 kHz |
| IC revision | 3 |
Description
The IRS20957S is a high voltage, high speed MOSFET driver with a floating PWM input designed for Class D audio amplifier applications.Bi-directional current sensing detects over current conditions during positive and negative load currents without any external shunt resistors. A built-in protection control block provides a secure protection sequence against over-current conditions and a programmable reset timer.The internal dead-time generation block enables accurate gate switching and optimum dead-time setting for better audio performance, such as lower THD and lower audio noise floor.
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 800kHz
Typical applications
- Class D Audio / General purpose audio power amplifiers
- Home theatre systems / Mini component stereo systems / Powered speaker systems
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Pins (Value) (pcs) | Rows | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150080BS75000 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 470 | Blue | 465 | 145 | 3.2 | InGaN | 140 | – | – | – | 0805 | -40 °C up to +85 °C | – | – | – | – | 2 | 1.25 | – | – | – | – | – | – | 0.7 | – | – | – | – | Tape and Reel | ||
 | 74279228600 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | – | – | – | – | – | – | – | 0603 | -55 °C up to +125 °C | – | – | – | – | 1.6 | 0.8 | 0.3 | 60 | 99 | 458 MHz | 5100 | 74 | 0.8 | High Current | – | – | – | – | ||
 | 885012007055 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 47 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Class I | 2 | 1.25 | 0.5 | – | – | – | – | – | 0.6 | – | – | – | – | 7" Tape & Reel | ||
| 885012208064 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | 1 µF | ±10% | 25 | 1206 | -55 °C up to +125 °C | – | 3.5 | 0.5 GΩ | X7R Class II | 3.2 | 1.6 | 0.6 | – | – | – | – | – | 1.15 | – | – | – | – | 7" Tape & Reel | ||
| 885012208066 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | 2.2 µF | ±10% | 25 | 1206 | -55 °C up to +125 °C | – | 3.5 | 0.2 GΩ | X7R Class II | 3.2 | 1.6 | 0.6 | – | – | – | – | – | 1.6 | – | – | – | – | 7" Tape & Reel | ||
 | 61300621121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Dual Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 7.62 | – | – | – | – | – | 3000 | – | – | Straight | 6 | Dual | Pin Header | Bag | |
 | 61300821121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Dual Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 10.16 | – | – | – | – | – | 3000 | – | – | Straight | 8 | Dual | Pin Header | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150080BS75000 | SPEC | |
| 74279228600 | SPEC | |
| 885012007055 | SPEC | |
| 885012208064 | SPEC | |
| 885012208066 | SPEC | |
| 61300621121 | SPEC | – |
| 61300821121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Pins (Value) (pcs) | Rows | Gender | Packaging | Samples |
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