• Part: RM3253
  • Manufacturer: REACTOR
  • Size: 223.43 KB
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RM3253 Key Features

  • Built-in 800V high voltage BJT and minimal external ponets
  • Low start-up current: Typ.15 μA Max.25 μA
  • UVLO(under voltage lockout):Typ.12V start-up Typ.6V shut-down
  • Low operating current:Typ.2 mA Max.5 mA
  • LEB(leading edge blanking): Typ.300ns
  • OVP(over voltage protection)

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RM3253 Description

The RM3253 series switcher ICs cost effectively replace all power supplies up to 5W output power based on unregulated isolated linear transformer (50/60HZ). Unlike conventional PWM (pulse width modulation) controllers, they regulate the output voltage in a new method of off-time modulation control. The controller consists of a VCO (voltage control oscillator), Sense and logic circuit, VDD pin, under-voltage lockout...