ML4822 MICRO-LINEAR [Micro Linear Corporation], ML4822 Datasheet
ML4822
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ML4822 Summary of contents
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... GENERAL DESCRIPTION The ML4822 is a PFC controller designed specifically for high power applications. The controller contains all of the functions necessary to implement an average current boost PFC converter, along with a Zero Voltage Switch (ZVS) controller to reduce diode recovery and MOSFET turn-on losses. The average current boost PFC circuit provides high power factor (> ...
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... GND PIN 8 (10) GND 9 (11) PWR GND Return for the PFC and ZVS driver 10 (12) ZVS OUT ZVS MOSFET driver output. 11 (13) PFC OUT PFC MOSFET driver output. 12 (14 (15) REF 14 (16) FB ML4822 16-Pin SOIC (S16W) VEAO IEAO 2 15 REF ...
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... I COMPARATOR SENSE Threshold Voltage Delay to Output Lead Temperature (Soldering, 10 sec) ..................... 150 C Thermal Resistance ( Plastic DIP ....................................................... 80 C/W Plastic SOIC ....................................................110 C/W OPERATING CONDITIONS Temperature Range ML4822CX ................................................ ML4822IX .............................................. – 470pF Operating Temperature Range (Note CONDITIONS VEAO = 3.75V NON-INV INV ...
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... ML4822 ELECTRICAL CHARACTERISTICS PARAMETER ZV SENSE COMPARATOR Propagation Delay Threshold Voltage Input Capacitance GAIN MODULATOR Gain (Note 2) Bandwidth Output Voltage OSCILLATOR Initial Accuracy Voltage Stability Temperature Stability Total Variation Ramp Valley to Peak Voltage Dead Time C Discharge Current T REFERENCE Output Voltage Line Regulation ...
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... I = –10mA OUT 20mA OUT I = 100mA OUT C = 1000pF L I =25mA CC 25mA < I < 55mA CC Load and temperature V < 12. – 0.5V CC CCZ ) – 1.5) – EAO ML4822 MIN TYP MAX UNITS 0.3 0.8 0.6 3.0 0.8 1.5 9.5 10 – 0.9 V – 0.6 V – 0.2 CCZ CCZ CCZ 2.5 2.8 3.2 12.8 13.5 14.2 150 300 12.4 14.6 0.7 1 ...
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... MOSFET, together with a storage element (inductor) to convert the turn-on losses of the boost MOSFET into useful output power. The basic function of the ML4822 is to provide a power factor corrected, regulated DC bus voltage using continuous, average current-mode control. Like Micro Linear’s family of PFC/PWM controllers, the ML4822 ...
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... RES C ZVS BUS RMS MIN ( APPLICATION Figure 3 displays a typical application circuit for a 500W ZVS PFC supply. Full design details are covered in application note 33, ML4822 Power Factor Correction With Zero Voltage Resonant Switching. A. SYSTEM CLOCK (INTERNAL) ( (2) C ...
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... ML4822 8 Figure 3. ML4822 Scematic ...
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... PIN 0.070 MIN (1.77 MIN) (4 PLACES) 0.170 MAX (4.32 MAX) 0.125 MIN (3.18 MIN) inches (millimeters) Package: P14 14-Pin PDIP 0.740 - 0.760 (18.79 - 19.31) 0.240 - 0.260 (6.09 - 6.61) 0.050 - 0.065 0.100 BSC (1.27 - 1.65) (2.54 BSC) 0.015 MIN (0.38 MIN) SEATING PLANE 0.016 - 0.022 (0.40 - 0.56) ML4822 0.295 - 0.325 (7.49 - 8.25) 0.008 - 0.012 0º - 15º (0.20 - 0.31) 11 ...
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... ORDERING INFORMATION PART NUMBER ML4822CP ML4822CS ML4822IP ML4822IS © Micro Linear 1997 is a registered trademark of Micro Linear Corporation Micro Linear Products described in this document may be covered by one or more of the following patents, U.S.: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940; 5,546,017; 5,559,470; 5,565,761; 5,592,128; 5,594,376; Japan: 2598946; 2619299. Other patents are pending. ...