ML4832CP Microsemi Corporation, ML4832CP Datasheet
ML4832CP
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ML4832CP Summary of contents
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GENERAL DESCRIPTION The ML4832 is a complete solution for a dimmable/non- dimmable, high power factor, high efficiency electronic ballast. The BiCMOS ML4832 contains controllers for “boost” type power factor correction as well as for a dimming ballast. The power factor ...
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ML4832 PIN CONFIGURATION ML4832 18-Pin DIP (P18) EA OUT OUT SINE IA LAMP LFB OUT SET ...
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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 Current (I ) ............................................... 60mA CC Output Current, ...
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ML4832 ELECTRICAL CHARACTERISTICS PARAMETER GAIN MODULATOR Output Voltage (V ) MUL Output Voltage Limit Offset Voltage I Input Voltage SINE PFC CURRENT — LIMIT COMPARATOR Current-Limit Threshold Propagation Delay OSCILLATOR Initial Accuracy Voltage Stability Temperature Stability Total Variation Ramp Valley ...
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ELECTRICAL CHARACTERISTICS PARAMETER PREHEAT AND INTERRUPT TIMER (R X Pin 10 Open Circuit Voltage Pin 10 Maximum Voltage Input Bias Current Preheat Lower Threshold Preheat Upper Threshold Interrupt Recovery Threshold Start Period End Threshold INTERRUPT INPUT Interrupt Threshold Input Bias ...
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ML4832 FUNCTIONAL DESCRIPTION OVERVIEW The ML4832 consists of an average current controlled continuous boost power factor front end section with a flexible ballast control section. Start-up and lamp-out retry timing are controlled by the selection of external timing components, allowing ...
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FUNCTIONAL DESCRIPTION AVERAGE CURRENT AND OUTPUT VOLTAGE REGULATION The PWM regulator in the PFC control section will act to offset the positive voltage caused by the multiplier output by producing an offsetting negative voltage on the current sense resistor at ...
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ML4832 FUNCTIONAL DESCRIPTION The magnitude of the offset voltage that will appear at the input is given io/gm. For 1mA and 0.05 µmhos the input referred offset will be 20mV. ...
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FUNCTIONAL DESCRIPTION In running mode, charging current decreases as the V rises from the LAMP FB amplifier. The OH highest frequency will be attained when I which is attained when LFB OUT is at 0V: 5 ...
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ML4832 FUNCTIONAL DESCRIPTION the lamp fails to strike or is out of socket. Typically this time is set to be fairly long by choosing a large value LFB OUT is ignored by the oscillator until C ...
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TYPICAL APPLICATIONS Figures 9 and 10 show ballast schematics, both non- dimming and dimming. These are power-factor corrected 60W ballasts designed to operate two series connected F32T8 fluorescent lamps. Both Schematics, Figures 9 and 10, are of previously published ML4831 ...
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ML4832 12 Figure 9. 220V Non-Dimming Ballast ML4832 ...
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Figure 10. 220V Dimming Ballast ML4832 ML4832 13 ...
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ML4832 PHYSICAL DIMENSIONS inches (millimeters) 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 ...
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... ORDERING INFORMATION PART NUMBER ML4832CP (End of Life) ML4832CS (Obsolete) © Micro Linear 1999 registered trademark of Micro Linear Corporation. All other trademarks are the property of their respective owners. Products described herein may be covered by one or more of the following U.S. patents: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; ...