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Current Mode PWM Controller
OPTIMIZED FOR OFF-LINE CONTROL
LOW START-UP CURRENT (<1mA)
AUTOMATIC FEED FORWARD
COMPENSATION
TRIMMED OSCILLATOR DISCHARGE CURRENT
PULSE-BY-PULSE CURRENT LIMITING
ENHANCED LOAD RESPONSE CHARACTERISTICS
UNDER-VOLTAGE LOCKOUT WITH 6 V
HYSTERESIS (SG1811 only)
DOUBLE PULSE SUPPRESSION
HIGH-CURRENT TOTEM-POLE OUTPUT
INTERNALLY TRIMMED BANDGAP REFERENCE
500kHz OPERATION
UNDERVOLTAGE LOCKOUT
SG1844 - 16 volts
SG1845 - 8.4 volts
LOW SHOOT-THROUGH CURRENT <75mA OVER
TEMPERATURE
Semiconductors High Power Equipment Repair