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Overview
| Topology | Buck Converter |
| Input voltage | 85-264 V |
| Switching frequency | 15-37 kHz |
| Output 1 | 5 V / 0.17 A |
| IC revision | 1 |
Description
AP3917B is an off-line universal AC Voltage input step-down regulator that provides accurate constant voltage (CV), outstanding low standby power, light loading efficiency and dynamics performance based on non-isolated buck topology. The main applications are for cost-effective home appliance power. Working with a single winding inductor and integrating a 650V MOSFET, the BOM cost is very low. The AP3917B EV1 Evaluation Board provides good design example for single output 12V@120mA power applications useful in home appliance powers.
Features
- Universal 85V to 264V VAC Input
- Internal MOSFET 650V (20Ω)
- Maximum output Current: 170mA typ.@5V output
- Up to 2W Output Power
- Low Standby Power Consumption
- High Light Loading Efficiency and average efficiency can meet DOE IV and CoC V5 Tier 2
- Frequency Modulation to suppress EMI to meet EN55022 and FCC part 15 class B
- Rich Protection including: OTP, OLP, OLD,SCP
- Extremely low system component count.
- Totally Lead-free & Fully RoHS Compliant (SO-7)
- Halogen and Antimony Free. “Green” Device
Typical applications
- Non-isolated and isolated home appliances including: AC fans, rice cooker, air conditioner, coffee machines, soy milk machines, etc.
- Auxiliary Power to IoT Devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 680 µH, 0.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance680 µH | Rated Current0.25 A | Saturation Current @ 10%0.3 A | DC Resistance3.7 Ω | Self Resonant Frequency2.4 MHz | VersionHeat Shrinking Tube | – | – | – | – | – | – | – | – | Length6 mm | – | ||||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | Capacitance150 µF | Rated Voltage25 V (DC) | Endurance 2000 | Ripple Current180 mA | Leakage Current37.5 µA | Dissipation Factor14 % | Pitch2.5 mm | Diameter6.3 mm | Length11 mm | PackagingAmmopack | ||||
| WCAP-ATG5 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | Capacitance2.2 µF | Rated Voltage400 V (DC) | Endurance 2000 | Ripple Current35 mA | Leakage Current26.4 µA | Dissipation Factor15 % | Pitch3.5 mm | Diameter8 mm | Length11.5 mm | PackagingAmmopack |