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Eta Solutions Co. Ltd. ETA8047 | Demoboard ETA8047 15V3A Adaptor Solution
High Performance Level 6 Energy Standard 48W Adaptor Using ETA8047
Overview
| Topology | Flyback Converter |
| Input voltage | 90-264 V |
| Output 1 | 15 V / 3 A |
| IC revision | 1.0 |
Description
The ETA8047 is a high performance peak current mode PWM controller. The ETA8047 uses quasi-resonant and frequency foldback techniques to reduce EMI and improve average efficiency, and to meet the latest level VI energy efficiency standards with sufficient margin. Through the optocoupler and secondary side control circuit, a very low standby power consumption, good dynamic response and precise voltage regulation are achieved. With the built-in quick startup procedure, the ETA8047 can achieve very short rise times even with large capacitive loads. The soft-start circuit keeps the output voltage free from overshoot at power-up. Under full load conditions, ETA8047 can work in CCM mode and DCM mode to meet different types of applications. The quasi-resonant (QR) valley technique always works in DCM mode. The ETA8047 has a 7 -37V wide VCC operating voltage range and can be used directly in a Class A Quick Charge solution. The ETA8047 integrates comprehensive protection. When over temperature, input/output overvoltage, winding short-circuit, short-circuit of current sensing resistor, open-loop, output short-circuit, overload, overcurrent, etc., the fault condition is detected to enter the auto-restart hiccup mode. When the fault is removed, it will automatically resume normal operation. The cycle-by-cycle current limit ensures safe operation even during failure modes and recovery. The ETA8047 is suitable for applications up to 50 watts. The ETA8047 is available in a SOT23-6 package.
Features
- Quasi-Resonant and CCM PWM Controller
- Integrated Line Compensation OCP/OLP protection
- No-load Standby Power < 75mW
- Excellent Average Efficiency ( >90%)
- Exceed COC Average Efficiency Requirement with Lot of Margin
- Independent Output Short Protection
- OTP, OVP, BrownOut Protection, Rcs Short/Open Protection, Transformer Winding Short Protection, Output Diode Short/Open Protection, Open Loop Protection, OVP
- Easy Design Approach with Small Component Count
Typical applications
- Conventional adapter / Quick Charge adapter / USB PD adapter / Alternative Linear Transformers and RCC SMPS
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | Packaging | Tol. C | Size | Qmin. | DF(%) | Ceramic Type | Fl(mm) | Operating Temperature | Q(%) | Endurance(h) | IRIPPLE(mA) | RESR(mΩ) | ILeak(µA) | Ø D(mm) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTX2 Film Capacitors, Across the mains, 220 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance220 nF | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | PackagingCarton | Capacitance±10% | SizePitch 10 mm | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Rated Voltage275 V (AC) | – | – | Length13 mm | Width8 mm | Height14 mm | MountBoxed THT | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | SizeM | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | – | Rated Current1.5 A | Inductance20 mH | DC Resistance270 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length23 mm | Width13.8 mm | Height25.5 mm | MountTHT | ||||
 | WE-CMB HC Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB HC Common Mode Power Line Choke | – | – | – | – | – | – | – | – | SizeType S | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | – | Rated Current5 A | Inductance0.7 mH | DC Resistance15 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length18.5 mm | Width14.5 mm | Height22 mm | MountTHT | ||||
 | WCAP-PTG5 Aluminum Polymer Capacitors, –, 820 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-PTG5 Aluminum Polymer Capacitors | Capacitance820 µF | – | – | – | – | Pitch5 mm | PackagingAmmopack | Capacitance±20% | – | – | Dissipation Factor10 % | – | – | – | – | Endurance 2000 | Ripple Current5500 mA | – | Leakage Current1000 µA | Diameter10 mm | – | – | – | Rated Voltage16 V (AC) | – | – | Length12.5 mm | – | – | MountRadial THT | ||||
 | WCAP-PT5H Aluminum Polymer Capacitors, –, 330 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-PT5H Aluminum Polymer Capacitors | Capacitance330 µF | – | – | – | – | Pitch3.5 mm | PackagingAmmopack | Capacitance±20% | – | – | Dissipation Factor8 % | – | – | – | – | Endurance 5000 | Ripple Current5600 mA | ESR9 mΩ | Leakage Current528 µA | Diameter8 mm | – | – | – | Rated Voltage16 V (AC) | – | – | Length11.5 mm | – | – | MountRadial THT | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, 470 pF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance470 pF | – | – | – | Insulation Resistance10 GΩ | – | Packaging7" Tape & Reel | Capacitance±5% | Size0805 | – | – | Ceramic TypeNP0 Class I | Pad Dimension0.5 mm | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | – | – | – | – | – | – | – | Rated Voltage50 V (AC) | – | – | Length2 mm | Width1.25 mm | Height0.8 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 | – | – | – | Insulation Resistance5 GΩ | – | Packaging7" Tape & Reel | Capacitance±10% | Size0805 | Q-Factor [1]600 | Dissipation Factor3.5 % | Ceramic TypeX7R Class II | Pad Dimension0.5 mm | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | Rated Voltage25 V (AC) | – | – | Length2 mm | Width1.25 mm | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, 4.7 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance4.7 µF | – | – | – | Insulation Resistance0.02 GΩ | – | Packaging7" Tape & Reel | Capacitance±10% | Size1206 | Q-Factor [1]600 | Dissipation Factor10 % | Ceramic TypeX7R Class II | Pad Dimension0.5 mm | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | Rated Voltage50 V (AC) | – | – | Length3.2 mm | Width1.6 mm | Height1.6 mm | – | |||||
| WCAP-CSGP MLCCs 100 V(DC), –, 1 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | Capacitance1 nF | – | – | – | Insulation Resistance10 GΩ | – | Packaging7" Tape & Reel | Capacitance±5% | Size0805 | Q-Factor [1]1000 | – | Ceramic TypeNP0 Class I | Pad Dimension0.5 mm | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | – | – | – | – | – | – | – | Rated Voltage100 V (AC) | – | – | Length2 mm | Width1.25 mm | Height0.8 mm | – | |||||
 | WCAP-CSMH Mid and High Voltage, –, 1 nF | Downloads8 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSMH Mid and High Voltage | Capacitance1 nF | – | – | – | Insulation Resistance10 GΩ | – | Packaging7" Tape & Reel | Capacitance±5% | Size1206 | Q-Factor [1]1000 | – | Ceramic TypeNP0 Class I | Pad Dimension0.6 mm | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | – | – | – | – | – | – | – | Rated Voltage500 V (AC) | – | – | Length3.2 mm | Width1.6 mm | Height1.6 mm | – |