...nsisting of input and reference undervoltage lockouts each with hysteresis,
FEATURES
Trimmed Oscillator Discharge Current for Precise Duty Cycle Control Current Mode Operation to 500KHz Automatic Feed Forward Compensation Latching PWM f...
Description
(PJ3844B / PJ3845B) High Performance Current Mode Controller
...e supply range from 10 to 20V n undervoltage lockout for both channels n Separate logic supply range from 5 to 20V Logic and power ground 5V offset n CMOS Schmitt-triggered inputs with pull-down n Cycle by cycle edge-triggered shutdown logi...
...e supply range from 10 to 20V n undervoltage lockout for both channels n Separate logic supply range from 5 to 20V Logic and power ground 5V offset n CMOS Schmitt-triggered inputs with pull-down n Cycle by cycle edge-triggered shutdown logi...
...e supply range from 10 to 20V n undervoltage lockout for both channels n Separate logic supply range from 5 to 20V Logic and power ground 5V offset n CMOS Schmitt-triggered inputs with pull-down n Cycle by cycle edge-triggered shutdown logi...
...ive supply range from 10 to 20V undervoltage lockout for both channels 3.3V logic compatible Separate logic supply range from 3.3V to 20V Logic and power ground 5V offset CMOS Schmitt-triggered inputs with pull-down Cycle by cycle edge-trig...
...Input Supply Current, UVLO Mode undervoltage Lock Out Voltage undervoltage Lock Out Hysteresis
Recommended Operating Conditions, Unless Otherwise Noted SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
ICC ICC(UVLO) VUVLO
VCC = 12V VCC VUV...
...AMETER Input Supply Range Input undervoltage Threshold IN Quiescent Supply Current SUPP Quiescent Current SUPN Quiescent Current IN Shutdown Current SUPP Shutdown Current SUPN Shutdown Current MAIN BOOST CONVERTER Output Voltage Range FB Re...
...Oscillator Frequency Soft-Start undervoltage Lockout Maximum Duty Cycle o Low External Component Count o External Frequency Synchronization o Primary or Secondary Regulation o Input Feed-Forward for Fast Line-Transient Response o Precision ...
...C to -72VDC) power supplies. An undervoltage lockout (UVLO) circuit with large hysteresis coupled with low startup and operating current reduce power dissipation in the startup resistor and allow use of ceramic bypass capacitors. The 262kHz...
Description
Current-Mode PWM Controllers for Isolated Power Supplies 0.25 A SWITCHING CONTROLLER, 290 kHz SWITCHING FREQ-MAX, PDSO8 Current- Mode PWM Controllers for Isolated Power Supplies