IC-Hersteller ROHM

IC-Hersteller (95)

ROHM BM520Q25F

AC/DC controller IC for LED lighting Included 650V MOSFET

Details

TopologieSonstige Topologie
Eingangsspannung250 V
Schaltfrequenz135-165 kHz
IC-Revision001

Beschreibung

BM520Q2xF is AC/DC converter with a built in FET which has a 650V withstand voltage for LED lighting. This IC is suitable for a Quasi-resonant switching typed High Side LED driver application, it can achieve a high accuracy of the LED current, and a low EMI at once. In addition, by embedding a PFC (Power Factor Correction) converter, it provides acountermeasure for harmonics.

Moreover, owing to the built-in bootstrap circuit with 650V withstand voltage, the low-power can be achieved. And owing to the external resistance for sensing the switching current, you may design thepower supply with a high degree of freedom. By the built-in bootstrap circuit and MOSFET, a compact application board with only a few components can be designed easily. So this IC is also suitable for alow cost strategy.

Eigenschaften

  • Quasi-resonant switching mode + PFC
  • Built-in 650V bootstrap circuit
  • Built-in 650V switching MOSFET
  • Maximum frequency 150kHz
  • VCC pin: under voltage protection
  • VCC pin: over voltage protection (latch)
  • SOURCE pin: Leading-Edge-Blanking function
  • LED over current detection
  • ZT pin: trigger mask function
  • ZT pin: over voltage protection (latch)
  • FET over current protection
  • AC revision function for LED current detection

Typische Anwendungen

  • LED bulb, seal typed LED lighting
  • Electrical machineries for LED lighting

Weiterführende Informationen

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