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Infineon Technologies IRS2982S | Demoboard DEMO_100W_24VDC_FB
100 W single-stage CrCM PFC Flyback converter using the IRS2982S and IR1161L
Overview
| Topology | Power Factor Correction |
| Input voltage | 90-265 V |
| Switching frequency | 60 kHz |
| Output 1 | 24 V / 4.2 A |
| IC revision | 2.0 |
Description
The IRS2982S is a versatile SMPS controller IC primarily intended for power supply and LED drivers in the 5 to 100 W power range suitable for buck, buck-boost and Flyback converters operating in Critical Conduction Mode (CrCM) and Discontinuous Conduction Mode (DCM) at light loads. Flyback converters will be covered in this application note, focusing on an isolated voltage-regulated design with Power Factor Correction (PFC). All of the control and protection required for the converter is integrated in the IRS2982S as well as a HV start-up cell to enable rapid start-up at switch-on over a wide line input voltage range. The IRS2982S is also able to provide PFC in a single-stage Flyback converter able to meet class D line current harmonic limits of the EN 61000-3-2 standard.
Features
- Output Over-Voltage Protection (OVP) at VOUT less than or equal to 25 V
- Over-Current Protection (OCP) at 5.5 A
- Short-Circuit Protection (SCP)
- Brown-out protection, shut-down at 60 to 65 VRMS, start-up at 85 to 90 VRMS AC input voltages
Typical applications
- Power supply and LED drivers
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (AC)) | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | L(mm) | W(mm) | H(mm) | Packaging | Tol. C | Size | Operating Temperature | Q(%) | DF(%) | Ceramic Type | Fl(mm) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Ø D(mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTXX Film Capacitors, Across the mains, 220 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance220 nF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | Length13 mm | Width8 mm | Height14 mm | PackagingBulk | Capacitance±10% | SizePitch 10 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | ||||
| WCAP-FTXX Film Capacitors, Across the mains, 470 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance470 nF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise280 V/µs | Dissipation Factor0.1 % | Insulation Resistance21.28 GΩ | Pitch12.5 mm | Length15 mm | Width10 mm | Height16 mm | PackagingBulk | Capacitance±10% | SizePitch 12.5 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | ||||
 | WCAP-ATUL Aluminum Electrolytic Capacitors, –, 47 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors | Capacitance47 µF | Rated Voltage35 V (AC) | – | – | – | – | Pitch2 mm | Length11 mm | – | – | PackagingAmmopack | Capacitance±20% | – | – | – | Dissipation Factor12 % | – | – | Endurance 5000 | Ripple Current280 mA | Leakage Current16.45 µA | Diameter5 mm | ||||
| WCAP-ATUL Aluminum Electrolytic Capacitors, –, 1200 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors | Capacitance1200 µF | Rated Voltage35 V (AC) | – | – | – | – | Pitch7.5 mm | Length21 mm | – | – | PackagingAmmopack | Capacitance±20% | – | – | – | Dissipation Factor12 % | – | – | Endurance 10000 | Ripple Current2800 mA | Leakage Current420 µA | Diameter16 mm | ||||
 | WCAP-ATLL Aluminum Electrolytic Capacitors, –, 180 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATLL Aluminum Electrolytic Capacitors | Capacitance180 µF | Rated Voltage25 V (AC) | – | – | – | – | Pitch3.5 mm | Length11.5 mm | – | – | PackagingAmmopack | Capacitance±20% | – | – | – | Dissipation Factor14 % | – | – | Endurance 7000 | Ripple Current552 mA | Leakage Current45 µA | Diameter8 mm | ||||
| WCAP-CSGP MLCCs 25 V(DC), –, 1 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance1 nF | Rated Voltage25 V (AC) | – | – | – | Insulation Resistance10 GΩ | – | Length2 mm | Width1.25 mm | Height0.8 mm | Packaging7" Tape & Reel | Capacitance±5% | Size0805 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Ceramic TypeNP0 Class I | Pad Dimension0.5 mm | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, 100 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance100 nF | Rated Voltage25 V (AC) | – | – | – | Insulation Resistance5 GΩ | – | Length3.2 mm | Width1.6 mm | Height0.8 mm | Packaging7" Tape & Reel | Capacitance±10% | Size1206 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Ceramic TypeX7R Class II | Pad Dimension0.6 mm | – | – | – | – | |||||
750317969 | Offline Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |