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Overview
| Topology | Buck Converter |
| Input voltage | 80-275 V |
| Switching frequency | 255-345 kHz |
| Output 1 | 53 V / 0.15 A |
Description
BM521Q25F is an AC/DC converter for LED lighting,which has a built-in MOSFET with 650V withstandvoltage. This IC can be applied to quasi-resonant typedHigh-side LED driver application, and the high currentprecision and Low EMI noise can be achieved. Moreover,owing to the built-in PFC (Power Factor Correction)converter, the harmonics is improved.Owing to the start-up circuit with 650V withstand voltage,the low power consumption is achieved. And owing tothe external current setting resistance, a power supplydesign with a high degree of freedom can be achieved.Owing to the built-in start-up circuit and MOSFET with650V withstand voltage, a compact application can bedesigned easily, and the low-cost can be achieved withthe small BOM size.
Features
Quasi-resonant Switching Mode + PFC Circuit Non-isolated Application Built-in 650V Start-up Circuit Built-in 650V Switching MOSFET Maximum Frequency 300kHz VCC Pin: Under Voltage Protection VCC Pin: Over Voltage Protection (Latch) SOURCE Pin: Leading-Edge-Blanking Function SOURCE Pin: OPEN Protection Function LED Over Current Detection Function
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance1000 µH | Rated Current0.25 A | Saturation Current @ 10%0.27 A | DC Resistance6 Ω | Self Resonant Frequency2.3 MHz | VersionHeat Shrinking Tube | ||||
| WE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.33 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance1000 µH | Rated Current0.33 A | Saturation Current @ 10%0.6 A | DC Resistance3.4 Ω | Self Resonant Frequency2.2 MHz | VersionHeat Shrinking Tube |