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Overview
| Topology | Buck Converter |
| Input voltage | -0.3-650 V |
| Switching frequency | 94-106 kHz |
| IC revision | 002 |
Description
The PWM type DC/DC converter for AC/DC providesan optimum system for all products that include anelectrical outlet. It enables simpler design of a higheffective converter specializing in non-isolated devices.This series has a built-in HV starter circuit thattolerates 650V, and it contributes to low powerconsumption. With a current detection resistor forswitching as internal device, it can be designed assmall power supply. Since current mode control isutilized, current is restricted in each cycle andexcellent performance is demonstrated in bandwidthand transient response. The switching frequency isfixed to 100 kHz. A frequency hopping function is alsoon chip, and it contributes to low EMI. In addition, abuilt-in super junction MOSFET which tolerates 650Vmakes the design easy.
Features
PWM frequency: 100kHz PWM current mode method Frequency hopping function Burst operation at light load Built-in 650V start circuit Built-in 650V switching MOSFET VCC pin under voltage protection VCC pin over voltage protection Over current limiter function per cycle Soft start function
Typical applications
- Air conditioners/ cleaners
- LED lights
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Mount | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TIS Radial Leaded Wire Wound Inductor, 470 µH, 0.68 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TIS Radial Leaded Wire Wound Inductor | Inductance470 µH | Rated Current0.68 A | Saturation Current0.98 A | DC Resistance1200 mΩ | Self Resonant Frequency1.6 MHz | MountTHT | – | – | – | – | – | – | – | – | Length11 mm | – | ||||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | Capacitance4.7 µF | Rated Voltage400 V (DC) | Endurance 2000 | Ripple Current48 mA | Leakage Current56.4 µA | Dissipation Factor15 % | Pitch3.5 mm | Diameter8 mm | Length11.5 mm | PackagingAmmopack | ||||
 | WCAP-ATLI Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATLI Aluminum Electrolytic Capacitors | – | – | – | – | – | – | Capacitance100 µF | Rated Voltage50 V (DC) | Endurance 3000 | Ripple Current730 mA | Leakage Current50 µA | Dissipation Factor8 % | Pitch3.5 mm | Diameter8 mm | Length11.5 mm | PackagingAmmopack |