ML4821IS MICRO-LINEAR [Micro Linear Corporation], ML4821IS Datasheet
ML4821IS
Related parts for ML4821IS
ML4821IS Summary of contents
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Micro Linear GENERAL DESCRIPTION The ML4821 provides complete control for a “boost” type power factor correction system using the average current sensing method. Special care has been taken in the design of the ML4821 to increase system noise immunity. The ...
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ML4821 PIN CONNECTION ML4821 18-Pin DIP (P18 LIM IA OUT 2 IA– SINE EA OUT 6 EA– RMS SOFT START 9 TOP VIEW PIN DESCRIPTION (Pin numbers in parentheses are ...
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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 ) ................................................ 35mA CC OUT Current, ...
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ML4821 ELECTRICAL CHARACTERISTICS PARAMETER VOLTAGE ERROR AMPLIFIER (Continued) Output High Voltage Output Low Voltage Unity Gain Bandwidth Soft Start Charge Current CURRENT ERROR AMPLIFIER Input Offset Voltage Input Bias Current Input Offset Current Open Loop Gain PSRR Output Voltage Low ...
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ELECTRICAL CHARACTERISTICS PARAMETER OUTPUT Output Voltage Low Output Voltage High Output Voltage Low in UVLO Output Rise/Fall Time UNDERVOLTAGE LOCKOUT Start-up Threshold Shut-Down Threshold V Good Threshold REF SUPPLY Supply Current Internal Shunt Zener Voltage Note 1: Limits are guaranteed ...
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ML4821 FUNCTIONAL DESCRIPTION OSCILLATOR The ML4821 oscillator charges the external capacitor connected to C with a current equal to 2.5/R T capacitor voltage reaches the upper threshold, the comparator changes state and the capacitor discharges to the lower threshold through ...
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INV 7 – + +8V V S.S REF 9 Figure 3. Error and Current Amplifier Configuration 0 SOURCE SATURATION V CC (LOAD TO GROUND) –1 25°C A –2 –55° –55°C A 2.0 ...
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ML4821 UNDER VOLTAGE LOCKOUT, OVP AND CURRENT LIMIT On power-up the ML4821 remains in the UVLO condition; output low and quiescent current low. The IC becomes operational when V reaches 16V. When V CC drops below 9V, the UVLO condition ...
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OFF-LINE START-UP AND BIAS SUPPLY GENERATION The circuit in Figure 11 supplies V CC ML4821. Start-up current is delivered via R10. The IC starts when V reaches 15.5V. After that time running CC power is delivered through the tap on ...
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ML4821 F1 5A, 250V 90-264 C1 VAC 910k 2k R6 2.7k R13 C2 20k 120pF C5 1.5nF C3 0 R12 1N5406 2.7k C4 1.5nF D6 R1 1N5406 0.25 ...
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PHYSICAL DIMENSIONS 18 PIN 0.045 MIN (1.14 MIN) (4 PLACES) 0.170 MAX (4.32 MAX) 0.125 MIN (3.18 MIN) 0.498 - 0.512 (12.65 - 13.00) 20 PIN 0.024 - 0.034 0.050 BSC (0.61 - 0.86) ...
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... PART NUMBER ML4821CP ML4821CS ML4821IP ML4821IS © Micro Linear 1997 Micro Linear is a registered trademark of Micro Linear Corporation 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. ...