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Overview
| Topology | Buck Converter |
| Input voltage | 90-264 V |
| Output 1 | 36.75 V / 1.2 A |
| IC revision | 001 |
Description
This evaluation board can output a voltage of 35 V isolated from an input of 90 Vac to 264 Vac, and the maximum output current is 1.2 A.The one-converter flyback type achieves a high power factor (PF > 0.9). The control IC uses BD7693FJ,which use the critical mode. Switching loss and noise are reduced by zero current detection. A circuit that lowers total harmonic distortion (THD) us used to support IEC610003-2 Class C and Class D.
Features
- Boundary Conduction Mode PFC
- Low THD Circuit Incorparation
- VCC Under Voltage Lock Out Function
- ZCD by Auxiliary Winding
- Static OVP by The VS Pin
- Error Amplifier Input Short Protection
- Stable MOSFET Gate Driving
- Soft Start Function
Typical applications
- Lighting Equipment, AC Adopter, TV, Refrigerator, etc
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (DC)) | VR 2(V (DC)) | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | L(mm) | W(mm) | H(mm) | Packaging | Tol. C | Size | Qmin. | DF(%) | Ceramic Type | Fl(mm) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Ø D(mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-CSMH Mid and High Voltage, 22 pF, 1000 V (DC) | Downloads8 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSMH Mid and High Voltage | Capacitance22 pF | Rated Voltage1000 V (DC) | – | – | – | – | Insulation Resistance10 GΩ | – | Length3.2 mm | Width1.6 mm | Height0.8 mm | Packaging7" Tape & Reel | Capacitance±5% | Size1206 | Q-Factor [1]840 | – | Ceramic TypeNP0 Class I | Pad Dimension0.6 mm | – | – | – | – | |||
| WCAP-CSMH Mid and High Voltage, 22 nF, 630 V (DC) | Downloads8 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSMH Mid and High Voltage | Capacitance22 nF | Rated Voltage630 V (DC) | – | – | – | – | Insulation Resistance4.545 GΩ | – | Length3.2 mm | Width1.6 mm | Height1.6 mm | Packaging7" Tape & Reel | Capacitance±10% | Size1206 | – | Dissipation Factor2.5 % | Ceramic TypeX7R Class II | Pad Dimension0.6 mm | – | – | – | – | |||
 | WCAP-FTBE Film Capacitors, 100 nF, 630 V (DC) | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTBE Film Capacitors | Capacitance100 nF | Rated Voltage630 V (DC) | Rated Voltage 2504 V (DC) | – | Rate of Voltage Rise28 V/µs | Dissipation Factor1 % | Insulation Resistance9 GΩ | Pitch15 mm | Length18 mm | Width6 mm | Height12 mm | PackagingCarton | Capacitance±10% | SizePitch 15 mm | – | – | – | – | – | – | – | – | ||||
 | WCAP-FTXX Film Capacitors, 470 nF, 310 V (DC) | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance470 nF | Rated Voltage310 V (DC) | Rated Voltage 2630 V (DC) | Safety ClassX2 | Rate of Voltage Rise220 V/µs | Dissipation Factor0.1 % | Insulation Resistance21.28 GΩ | Pitch15 mm | Length18 mm | Width8 mm | Height14 mm | PackagingCarton | Capacitance±10% | SizePitch 15 mm | – | – | – | – | – | – | – | – | ||||
 | WCAP-ATET Aluminum Electrolytic Capacitors, 10 µF, 50 V (DC) | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATET Aluminum Electrolytic Capacitors | Capacitance10 µF | Rated Voltage50 V (DC) | – | – | – | – | – | Pitch2.5 mm | Length11 mm | – | – | PackagingAmmopack | Capacitance±20% | – | – | Dissipation Factor10 % | – | – | Endurance 1000 | Ripple Current48 mA | Leakage Current5 µA | Diameter6.3 mm | ||||
 | WCAP-ATG8 Aluminum Electrolytic Capacitors, 2200 µF, 50 V (DC) | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors | Capacitance2200 µF | Rated Voltage50 V (DC) | – | – | – | – | – | Pitch7.5 mm | Length35.5 mm | – | – | PackagingAmmopack | Capacitance±20% | – | – | Dissipation Factor10 % | – | – | Endurance 2000 | Ripple Current2310 mA | Leakage Current1100 µA | Diameter16 mm |