ML4823IQ Fairchild, ML4823IQ Datasheet
ML4823IQ
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ML4823IQ Summary of contents
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High Frequency Power Supply Controller GENERAL DESCRIPTION The ML4823 High Frequency PWM Controller controller optimized for use in Switch Mode Power Supply designs running at frequencies to 1MHz. Propagation delays are minimal through the comparators and logic ...
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ML4823 PIN CONFIGURATION ML4823 16-PIN DIP (P16) 16-PIN SOIC (S16W) INV E/A OUT 3 14 CLOCK RAMP TOP VIEW PIN ...
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ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Supply Voltage ( ........................................... 30V C ...
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ML4823 ELECTRICAL CHARACTERISTICS PARAMETER ERROR AMPLIFIER (Continued) CMRR PSRR Output Sink Current Output Source Current Output High Voltage Output Low Voltage Unity Gain Bandwidth Slew Rate PWM COMPARATOR RAMP Bias Current Duty Cycle Range E/A OUT Zero DC Threshold Delay ...
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FUNCTIONAL DESCRIPTION OSCILLATOR The ML4823 oscillator charges the external capacitor (C with a current (I ) equal to 3/R SET SET voltage reaches the upper threshold (Ramp Peak), the comparator changes state and the capacitor discharges to the lower threshold ...
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ML4823 ERROR AMPLIFIER The ML4823 error amplifier is a 5.5MHz bandwidth 12V/µs slew rate op-amp with provision for limiting the positive output voltage swing (Output Inhibit line) for ease in implementing the soft start function ...
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SOFT START AND CURRENT LIMIT The ML4823 employs two current limits. When the voltage at I /SD exceeds the I LIM LIM REF, the outputs are immediately shut off and the cycle is terminated for the remainder of the oscillator ...
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ML4823 PHYSICAL DIMENSIONS 16 PIN 0.02 MIN (0.50 MIN) (4 PLACES) 0.170 MAX (4.32 MAX) 0.125 MIN (3.18 MIN) 0.385 - 0.395 (9.78 - 10.03) 0.350 - 0.356 (8.89 - 9.04) PIN 1 ID 0.042 - 0.048 ...
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... ORDERING INFORMATION PART NUMBER ML4823CP ML4823CQ ML4823CS ML4823IQ ML4823IS ML4823MJ DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; ...