MC44604P ,HIGH SAFETY STANDBY LADDER MODE GREENLINE PWM CONTROLLEROrder this document from Analog Marketing ** ** * HIGH SAFETY STANDBY * LADDER MODE GREENLINE ..
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MC44604P
HIGH SAFETY STANDBY LADDER MODE GREENLINE PWM CONTROLLER
ORDERING INFORMATION
Order this document from Analog Marketing- - -
The MC44604 is an enhanced high performance controller that is
specifically designed for off–line and dc–to–dc converter applications.
The MC44604 is a modification of the MC44603. The MC44604 offers
enhanced safety and reliable power management in its protection features
(foldback, overvoltage detection, soft–start, accurate demagnetization
detection). Its high current totem pole output is also ideally suited for driving
a power MOSFET but can also be used for driving a bipolar transistor in low
power converters (< 150 W).
In addition, the MC44604 offers a new efficient way to reduce the standby
operating power by means of a patented standby ladder mode operation of
the converter significantly reducing the converter consumption in standby
mode.
Current or Voltage Mode Controller Operation Up to 250 kHz Output Switching Frequency Inherent Feed Forward Compensation Latching PWM for Cycle–by–Cycle Current Limiting Oscillator with Precise Frequency Control
High Flexibility Externally Programmable Reference Current Secondary or Primary Sensing High Current Totem Pole Output Undervoltage Lockout with Hysteresis
Safety/Protection Features Overvoltage Protection Facility Against Open Loop Protection Against Short Circuit on Oscillator Pin Fully Programmable Foldback Soft–Start Feature Accurate Maximum Duty Cycle Setting Demagnetization (Zero Current Detection) Protection Internally Trimmed Reference
GreenLine Controller: Low Startup and Operating Current Patented Standby Ladder Mode for Low Standby Losses Low dV/dT for Low EMI
GreenLine is a trademark of Motorola, Inc.
