ML4805IP Fairchild, ML4805IP Datasheet
ML4805IP
Related parts for ML4805IP
ML4805IP Summary of contents
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Variable Feedforward PFC/PWM Controller Combo GENERAL DESCRIPTION The ML4805 is a controller for power factor corrected, switched mode power supplies. Similar to the ML4801, the ML4805 may be used for voltage mode operation. Key features of this combined PFC and ...
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ML4805 PIN CONFIGURATION PIN DESCRIPTION PIN NAME FUNCTION 1 IEAO PFC transconductance current error amplifier output 2 I PFC gain control reference input Current sense input to the PFC current SENSE limit comparator 4 V Input for ...
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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 .............................................................................................. I Voltage .................................................. - ...
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ML4805 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER OVP COMPARATOR Threshold Voltage Hysteresis PFC I COMPARATOR LIMIT Threshold Voltage ∆PFC I Threshold - Gain Modulator Output LIMIT Delay to Output DC I COMPARATOR LIMIT Threshold Voltage Input Bias Current Delay to Output V ...
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ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER REFERENCE Output Voltage Line Regulation Load Regulation Temperature Stability Total Variation Long Term Stability PFC Minimum Duty Cycle Maximum Duty Cycle Output Low Voltage Output High Voltage Rise/Fall Time PWM DC Duty Cycle Range V Output ...
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ML4805 FUNCTIONAL DESCRIPTION The ML4805 consists of a combined average-current- controlled, continuous boost Power Factor Corrector (PFC) front end and a synchronized Pulse Width Modulator (PWM) back end distinguished from earlier combo controllers by its dramatically reduced start-up ...
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FUNCTIONAL DESCRIPTION 18 VEAO V FB VEA 1.6kΩ 2.5V + – GAIN V RMS MODULATOR 4 1.6kΩ I SENSE 3 RAMP (except at unusually inversely proportional ...
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ML4805 FUNCTIONAL DESCRIPTION Overvoltage Protection The OVP comparator serves to protect the power circuit from being subjected to excessive voltages if the load should suddenly change. A resistor divider from the high voltage DC output of the PFC is fed ...
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FUNCTIONAL DESCRIPTION operating frequency can typically be approximated by: operating frequency can typically be approximated by OSC t RAMP EXAMPLE: EXAMPLE: For the application circuit shown in the data sheet, with For the application circuit shown in ...
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ML4805 FUNCTIONAL DESCRIPTION Generating V CC The ML4805 is a voltage-fed part. It requires an external 15V±10% or better Zener shunt voltage regulator, or some other controlled supply, to regulate the voltage supplied to the part at 15V nominal. This ...
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V FB (V) Figure 5. I vs. V VEAO 200 160 120 (V) Figure REV. 1.1 3/9/2001 ...
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ML4805 PHYSICAL DIMENSIONS 18 PIN 0.045 MIN (1.14 MIN) (4 PLACES) 0.170 MAX (4.32 MAX) 0.125 MIN (3.18 MIN) 0.449 - 0.463 (11.40 - 11.76) 18 PIN 0.024 - 0.034 0.050 BSC (0.61 - ...
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... ORDERING INFORMATION PART NUMBER ML4805CP ML4805CS ML4805IP ML4805IS 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; ...