ML4812IQ Fairchild Semiconductor, ML4812IQ Datasheet
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ML4812IQ
Specifications of ML4812IQ
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ML4812IQ Summary of contents
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ML4812 Power Factor Controller Features Block Diagram (Pin Configuration Shown is for DIP Version) OVP + 5 – SENSE OUT 2 EA OUT 3 EA– – SINE GAIN MODULATOR 6 RAMP ...
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ML4812 Pin Configuration ML4812 16-Pin PDIP (P16) I SENSE 1 GM OUT 2 EA OUT 3 EA– 4 OVP 5 I SINE 6 RAMP COMP Top View Pin Description Number Name 1 I Input from the ...
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ML4812 Absolute Maximum Ratings Supply Current ( Output Current Source or Sink (OUT) DC Output Energy (capacitive load per cycle) Gain Modulator I Input (I ) SINE SINE Error Amp Sink Current (EA OUT) Oscillator Charge Current Analog ...
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PRODUCT SPECIFICATION Electrical Characteristics Unless otherwise specified 15V , R CC Parameter Oscillator Initial Accuracy Voltage Stability Temperature Stability Total Variation Ramp Valley to Peak R Voltage T Discharge Current (R open) T Clock Out Voltage Low Clock ...
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ML4812 Electrical Characteristics Unless otherwise specified 15V , R CC Parameter OVP Comparator Input Offset Voltage Hysteresis Input Bias Current Propagation Delay PWM Comparator: I SENSE Input Offset Voltage Input Offset Current Input Common Mode Range Input Bias ...
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ML4812 Functional Description Oscillator EXTERNAL CLOCK C SYNC SYNC 10 I SET SYNC 8.4mA Q 1 CLOCK t D RAMP PEAK V RAMP VALLEY Figure 1. Oscillator ...
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PRODUCT SPECIFICATION Output Driver Stage Error Amplifier Gain Modulator 5V 0.5mA + EA– – OUT 3 Figure 4. Error Amplifier Configuration 100 GAIN 0 -20 10 100 1k 10k 100k FREQUENCY (Hz) Figure 5. ...
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ML4812 Typical Applications Input Inductor (L1) Selection ENABLE V REF V REF GEN. 9V INTERNAL – BIAS + Figure 8. Under-Voltage Lockout Block Diagram Figure 9a. Total Supply Current vs. Supply Voltage ...
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PRODUCT SPECIFICATION Step 1: Step 2: Step 3: Step 4: REV. 1.0.4 5/31/01 Oscillator Component Selection Step 1: Step 2: Current Sense and Slope (Ramp) Compensation Component Selection ML4812 9 ...
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ML4812 10 PRODUCT SPECIFICATION Voltage Regulation Components REV. 1.0.4 5/31/01 ...
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PRODUCT SPECIFICATION Overvoltage Protection (OVP) Components Controller Shutdown Off-line Start-up and Bias Supply Generation Enhancement Circuit Table 1. Toroidal Cores (L1) Material Powdered Iron Powdered Iron Molypermalloy SPANG (Mag. Inc.) REV. 1.0.4 5/31/01 Construction and Layout Tips Magnetics Tips L1 ...
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ML4812 COPPER FOIL SHORTED TURN Figure 11. Copper Foil Shorted Turn 12 T1 — Sense Transformer Material Size Code N27 R16/6.3 N30 R16/6.3 0.09" GAP PRODUCT SPECIFICATION Part # B64290-K45-X27 B64290-K45-X830 REV. 1.0.4 5/31/01 ...
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PRODUCT SPECIFICATION Figure 12. Typical Application 200W Power Factor Correction Circuit REV. 1.0.4 5/31/01 ML4812 13 ...
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ML4812 Table 2. Component Values/Bill of Materials for Figure 12 Reference C1 C5, C6 C8, C9 C10, C19 C11 C15 C16 C17 D1, D2, D3, D4, D10 D5 D6, D8, D9, D11, ...
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PRODUCT SPECIFICATION + Figure 13. 1kW Input Power, Power Factor Correction Circuit REV. 1.0.4 5/31/01 ML4812 15 ...
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PRODUCT SPECIFICATION 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) 0.385 - 0.395 (9.78 - ...
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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 ...