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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) | Packaging | Pins (pcs) | Pitch (mm) | Rows | Gender | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | 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 | – | Tape and Reel | – | – | – | – | – | – | – | – | – | 0.7 | – | ||
 | 74279228600 | SPEC | 10 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 | 9 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 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | 0.6 | – | ||
| 885012208064 | SPEC | 9 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 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | 1.15 | – | ||
| 885012208066 | SPEC | 9 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 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | 1.6 | – | ||
 | 61300621121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Dual | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 7.62 | – | – | Bag | 6 | 2.54 | Dual | Pin Header | – | – | – | 3000 | – | – | Straight | |
 | 61300821121 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Dual | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 10.16 | – | – | Bag | 8 | 2.54 | Dual | Pin Header | – | – | – | 3000 | – | – | Straight |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150080BS75000 | SPEC | |
| 74279228600 | SPEC | |
| 885012007055 | SPEC | |
| 885012208064 | SPEC | |
| 885012208066 | SPEC | |
| 61300621121 | SPEC | – |
| 61300821121 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | – |
| Samples |
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| 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) | Packaging | Pins (pcs) | Pitch (mm) | Rows | Gender | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Type | Samples |
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