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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 | Product series | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890334023028 | SPEC | 8 files | WCAP-FTXX Film Capacitors | Across the mains | 220 nF | 310 | X2 | 300 | 0.1 | 30 GΩ | -40 °C up to +105 °C | 10 | 13 | 8 | 14 | Bulk | ±10% | Pitch 10 mm | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | ||
| 890334024005 | SPEC | 8 files | WCAP-FTXX Film Capacitors | Across the mains | 470 nF | 310 | X2 | 280 | 0.1 | 21.28 GΩ | -40 °C up to +105 °C | 12.5 | 15 | 10 | 16 | Bulk | ±10% | Pitch 12.5 mm | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | ||
 | 860040572002 | SPEC | 7 files | WCAP-ATUL Aluminum Electrolytic Capacitors | – | 47 µF | 35 | – | – | – | – | -40 °C up to +105 °C | 2 | 11 | – | – | Ammopack | ±20% | – | – | – | 12 | – | – | 5000 | 280 | 16.45 | 5 | ||
| 860040580016 | SPEC | 7 files | WCAP-ATUL Aluminum Electrolytic Capacitors | – | 1200 µF | 35 | – | – | – | – | -40 °C up to +105 °C | 7.5 | 21 | – | – | Ammopack | ±20% | – | – | – | 12 | – | – | 10000 | 2800 | 420 | 16 | ||
 | 860160474016 | SPEC | 7 files | WCAP-ATLL Aluminum Electrolytic Capacitors | – | 180 µF | 25 | – | – | – | – | -55 °C up to +105 °C | 3.5 | 11.5 | – | – | Ammopack | ±20% | – | – | – | 14 | – | – | 7000 | 552 | 45 | 8 | ||
 | 885012007040 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | – | 1 nF | 25 | – | – | – | 10 GΩ | – | – | 2 | 1.25 | 0.8 | 7" Tape & Reel | ±5% | 0805 | -55 °C up to +125 °C | 1000 | – | NP0 Class I | 0.5 | – | – | – | – | ||
| 885012208058 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | – | 100 nF | 25 | – | – | – | 5 GΩ | – | – | 3.2 | 1.6 | 0.8 | 7" Tape & Reel | ±10% | 1206 | -55 °C up to +125 °C | – | 3.5 | X7R Class II | 0.6 | – | – | – | – | ||
| 750317969 | SPEC | – | – | Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890334023028 | SPEC | |
| 890334024005 | SPEC | |
| 860040572002 | SPEC | |
| 860040580016 | SPEC | |
| 860160474016 | SPEC | |
| 885012007040 | SPEC | |
| 885012208058 | SPEC | |
| 750317969 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | 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 |
|---|