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STMicroelectronics STCH03 | Demoboard STEVAL-USBPD27S
Offline PWM controller for low standby adapters
Overview
| Topology | Flyback Converter |
| Input voltage | 245 V |
| Switching frequency | 145-196 kHz |
| IC revision | 1 |
Description
The STCH03 current-mode controller is designed for an offline quasi-resonant ZVS (zerovoltage-switching at switch turn-on) flyback converter. It combines a high-performance low-voltage PWM controller chip and a 650V HV start-upcell in the same package.The device features a unique characteristic: it is capable of providing constant output current (CC) regulation using primary-sensing feedback. This eliminates the need fordedicated current reference IC, as well as the current sensor, still maintaining quite accurate output current regulation.The quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers the turn-on of the MOSFET, connected on the ZCD pin. This inputserves also as both output voltage monitor, to achieve mains-independent CC regulation (line voltage feedforward), and to implement OVP and UVP.
Features
- Advanced power management for ultra-low standby power consumption (under 10 mW at 230 VAC)
- Fully integrated primary side constant current output regulation (CC)
- 650 V embedded HV start-up circuit with zero power consumption.
- Quasi-resonant (QR) zero-voltage-switching (ZVS) operation
- Accurate and adjustable output OVP with options auto-restart (STCH03) or latched (STCH03L) after fault
- Output undervoltage protection (UVP) with auto-restart
- Input voltage feedforward compensation for mains-independent CC regulation
- Embedded thermal shutdown
- Intelligent frequency jitter for EMI suppression
- SO8 package
Typical applications
- Quick charger
- AC-DC chargers for smartphones, tablets, camcorders and other handheld equipment
- AC/DC adapters for STB, notebooks and auxiliary power supplies
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | L (mm) | W (mm) | Fl (mm) | Ceramic Type | Operating Temperature | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | L (µH) | NPRI : NSEC : NAUX | ISAT (A) | VT (V (DC)) | Mount | Q | fres (MHz) | Version | Interface Type | Working Voltage (V (DC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Application | VDE Approval | Pins (Value) | Rows | H (mm) | G (mm) | Gender | IR (mA) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206078 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 150 pF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | 1.6 | 0.8 | 0.4 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206079 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 220 pF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | 1.6 | 0.8 | 0.4 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012205041 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 330 pF | ±10% | 25 | 0402 | -55 °C up to +125 °C | 3.5 | 10 GΩ | 1 | 0.5 | 0.25 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012006061 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 470 pF | ±5% | 50 | 0603 | -55 °C up to +125 °C | – | 10 GΩ | 1.6 | 0.8 | 0.4 | NP0 Class I | – | – | – | – | – | – | – | – | – | – | – | 1000 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207116 | SPEC | 6 files | WCAP-CSGP MLCCs 100 V(DC) | 1 nF | ±10% | 100 | 0805 | -55 °C up to +125 °C | 2.5 | 10 GΩ | 2 | 1.25 | 0.5 | X7R Class II | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
 | 885342208018 | SPEC | 7 files | WCAP-CSMH Mid and High Voltage | 1 nF | ±10% | 1000 | 1206 | -55 °C up to +125 °C | 2.5 | 10 GΩ | 3.2 | 1.6 | 0.6 | X7R Class II | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012206013 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 6.8 nF | ±10% | 10 | 0603 | -55 °C up to +125 °C | 5 | 10 GΩ | 1.6 | 0.8 | 0.4 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012205012 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 10 nF | ±10% | 10 | 0402 | -55 °C up to +125 °C | 5 | 10 GΩ | 1 | 0.5 | 0.25 | X7R Class II | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012206092 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 33 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | 1.6 | 0.8 | 0.4 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012105010 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 100 nF | ±20% | 10 | 0402 | -55 °C up to +85 °C | 5 | 5 GΩ | 1 | 0.5 | 0.25 | X5R Class II | -55 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012105018 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 100 nF | ±20% | 25 | 0402 | -55 °C up to +85 °C | 10 | 5 GΩ | 1 | 0.5 | 0.25 | X5R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012206095 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 5 GΩ | 1.6 | 0.8 | 0.4 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012105011 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 220 nF | ±20% | 10 | 0402 | -55 °C up to +85 °C | 5 | 2.3 GΩ | 1 | 0.5 | 0.25 | X5R Class II | -55 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012106022 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±20% | 25 | 0603 | -55 °C up to +85 °C | 10 | 0.5 GΩ | 1.6 | 0.8 | 0.4 | X5R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207078 | SPEC | 7 files | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±10% | 25 | 0805 | -55 °C up to +125 °C | 5 | 0.5 GΩ | 2 | 1.25 | 0.5 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
 | 885382209002 | SPEC | 6 files | WCAP-CSST Soft Termination | 2.2 µF | ±10% | 100 | 1210 | -55 °C up to +125 °C | 5 | 0.05 GΩ | 3.2 | 2.5 | 0.75 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | ||
| 885012106012 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 4.7 µF | ±20% | 10 | 0603 | -55 °C up to +85 °C | 10 | 0.02 GΩ | 1.6 | 0.8 | 0.4 | X5R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012208094 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 4.7 µF | ±10% | 50 | 1206 | -55 °C up to +125 °C | 10 | 0.02 GΩ | 3.2 | 1.6 | 0.5 | X7R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | 7" Tape & Reel | ||
| 885012107011 | SPEC | 8 files | WCAP-CSGP MLCCs 10 V(DC) | 22 µF | ±20% | 10 | 0805 | -55 °C up to +85 °C | 10 | 0.005 GΩ | 2 | 1.25 | 0.5 | X5R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012109014 | 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. | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 22 µF | ±20% | 25 | 1210 | -55 °C up to +85 °C | 5 | 0.005 GΩ | 3.2 | 2.5 | 0.6 | X5R Class II | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | ||
 | 7427927141 | SPEC | 9 files | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | 0402 | -55 °C up to +125 °C | – | – | 1 | 0.5 | 0.25 | – | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | SMT | – | – | SMT | – | – | 470 | 1200 | 300 MHz | 620 | 0.45 | High Speed | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | 250 | – | ||
 | 820572711 | SPEC | 6 files | WE-VD Disk Varistor | – | – | – | 7 mm | -40 °C up to +85 °C | – | – | 9 | 3.9 | – | – | -40 °C up to +85 °C | – | – | – | – | – | – | – | – | – | THT | – | – | THT | – | – | – | – | – | – | – | – | 275 | 350 | 430 | 1200 | 33 | 0.25 | 230 VAC | Yes | – | – | 12.5 | – | – | – | – | ||
 | 7447462471 | SPEC | 7 files | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | 5075 | -40 °C up to +125 °C | – | – | 6 | 6 | – | – | – | – | – | – | – | – | 470 | – | 0.4 | – | THT | – | 3.4 | Heat Shrinking Tube | – | – | – | – | – | – | 2.4 | – | – | – | – | – | – | – | – | – | – | – | 8.5 | – | – | 350 | – | ||
 | 632723300011 | SPEC | – | 6 files | WR-COM USB 3.1 Type C Receptacle Horizontal THR / SMT | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | – | – | – | – | THR | – | – | – | Type C | 20 | – | – | – | – | – | Horizontal | – | – | – | – | – | – | USB 3.1 | – | 24 | – | – | 1.9 | Receptacle | 5000 | Tape and Reel | |
 | 61300411121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | 10.16 | – | – | – | – | – | – | – | – | – | – | – | – | – | THT | – | – | – | – | 250 | – | – | – | – | – | Straight | – | – | – | – | – | – | – | – | 4 | Single | – | – | Pin Header | 3000 | Bag | |
| 750318501 | SPEC | – | – | Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 750318330 | SPEC | 2 files | MID-OLSTM Offline Flyback Transformers for STMicroelectronics | – | – | – | RM8 | – | – | – | 24.64 | 24.64 | – | – | – | 120 - 375 V (AC) | 12 | 2.25 | 12 | 56 - 138 | 150 | 5:1:3.5 | 4.8 | 4000 | THT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 17.32 | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206078 | SPEC | |
| 885012206079 | SPEC | |
| 885012205041 | SPEC | |
| 885012006061 | SPEC | |
| 885012207116 | SPEC | |
| 885342208018 | SPEC | |
| 885012206013 | SPEC | |
| 885012205012 | SPEC | |
| 885012206092 | SPEC | |
| 885012105010 | SPEC | |
| 885012105018 | SPEC | |
| 885012206095 | SPEC | |
| 885012105011 | SPEC | |
| 885012106022 | SPEC | |
| 885012207078 | SPEC | |
| 885382209002 | SPEC | |
| 885012106012 | SPEC | |
| 885012208094 | SPEC | |
| 885012107011 | SPEC | |
| 885012109014 | 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. | |
| 7427927141 | SPEC | |
| 820572711 | SPEC | |
| 7447462471 | SPEC | |
| 632723300011 | SPEC | – |
| 61300411121 | SPEC | – |
| 750318501 | SPEC | – | |
| 750318330 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | L (mm) | W (mm) | Fl (mm) | Ceramic Type | Operating Temperature | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | L (µH) | NPRI : NSEC : NAUX | ISAT (A) | VT (V (DC)) | Mount | Q | fres (MHz) | Version | Interface Type | Working Voltage (V (DC)) | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Application | VDE Approval | Pins (Value) | Rows | H (mm) | G (mm) | Gender | IR (mA) | Packaging | Samples |
|---|