ML4841CP_NL Fairchild Semiconductor, ML4841CP_NL Datasheet
ML4841CP_NL
Specifications of ML4841CP_NL
Related parts for ML4841CP_NL
ML4841CP_NL Summary of contents
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ML4841 Variable Feedforward PFC/PWM Controller Combo Features • Internally synchronized PFC and PWM in one IC • Low total harmonic distortion • Reduces ripple current in the storage capacitor between the PFC and PWM sections • Average current, continuous mode, ...
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ML4841 Pin Configuration Pin Description PIN NAME PFC transconductance current error amplifier output 1 IEAO 2 I PFC gain control reference input AC Current sense input to the PFC current limit comparator 3 I SENSE Input for PFC RMS line ...
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PRODUCT SPECIFICATION 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. Parameter V Shunt Regulator Current CC I ...
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ML4841 Electrical Characteristics Unless otherwise specified 25mA Operating Temperature Range (Note 1) Symbol Parameter Input Bias Current Output High Voltage Output Low Voltage Source Current Sink Current Open Loop Gain PSRR OVP Comparator Threshold Voltage Hysteresis ...
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PRODUCT SPECIFICATION Electrical Characteristics Unless otherwise specified 25mA Operating Temperature Range (Note 1) Symbol Parameter Reference Output Voltage Line Regulation Load Regulation Temperature Stability Total Variation Long Term Stability PFC Minimum Duty Cycle Maximum Duty Cycle ...
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ML4841 Typical Performance Characteristics 250 200 150 100 (V) Voltage Error Amplifier (VEA) Transconductance (g 16 IEAO VEAO V FB VEA IEA 3.5kΩ 2. ...
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PRODUCT SPECIFICATION Functional Description The ML4841 consists of an average current controlled, continuous boost Power Factor Corrector (PFC) front end and a synchronized Pulse Width Modulator (PWM) back end. The PWM section uses current mode control. The PWM stage uses ...
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ML4841 The output of the gain modulator is a current signal, in the form of a full wave rectified sinusoid at twice the line frequency. This current is applied to the virtual-ground (negative) input of the current error amplifier. In ...
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PRODUCT SPECIFICATION There are two major concerns when compensating the voltage loop error amplifier; stability and transient response. Optimizing interaction between transient response and stability requires that the error amplifier’s open-loop cross- over frequency should be 1/2 that of the ...
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ML4841 PWM SECTION Pulse Width Modulator The PWM section of the ML4841 is straightforward, but there are several points which should be noted. Foremost among these is its inherent synchronization to the PFC section of the device, to which it ...
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PRODUCT SPECIFICATION The ML4841 should be locally bypassed with a 10nF and a 1µF ceramic capacitor. In most applications, an electrolytic capacitor of between 100µF and 330µF is also required across the part, both for filtering and as part of ...
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ML4841 VIN – REF RAMP OSC CLK U4 Figure 5. Leading/Trailing Edge Control Scheme 12 SW2 SW1 C1 RAMP VEAO VEAO DFF CMP + R Q – ...
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PRODUCT SPECIFICATION Typical Applications Figure 6 is the application circuit for a complete 100W power factor corrected power supply, designed using the AC INPUT 85 TO 265VAC F1 C1 3.15A 680nF IRF840 R2A 453kΩ BR1 4A, 600V R1A 499kΩ R27 ...
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ML4841 Mechanical Dimensions 16 PIN 0.02 MIN (0.50 MIN) 0.055 - 0.065 (4 PLACES) (1.40 - 1.65) 0.170 MAX (4.32 MAX) 0.016 - 0.022 0.125 MIN (0.40 - 0.56) (3.18 MIN) 14 inches (millimeters) Package: P16 16-Pin ...
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... NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems ...