CS2843A ON Semiconductor, CS2843A Datasheet
CS2843A
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CS2843A Summary of contents
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... CS2842A, CS3842A, CS2843A, CS3843A Off−Line Current Mode PWM Control Circuit with Undervoltage Lockout The CS284XA, CS384XA provides all the necessary features to implement off−line fixed frequency current−mode control with a minimum number of external components temperature−controlled oscillator with an internally trimmed discharge current to minimize variations in frequency. A precision duty− ...
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... V OUT OSC GND V CC Undervoltage Lock−out Circuit 34 V GND 16 V/10 V (8.4 V/7.6 V) 2.50 V OSC Oscillator + 2R V − Error R Amplifier COMP Sense ( ) Indicates CS2843A/3843A Figure 1. Block Diagram PIN CONNECTIONS SO− COMP V REF Sense V OUT NC Pwr GND OSC GND Set/ 5.0 V Reset ...
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... These parameters, although guaranteed, are not 100% tested in production. *Adjust V above the start threshold before setting Rating Wave Solder (through hole styles only) (Note 1) Reflow (SMD styles only) (Note 2) (−25° ≤ T ≤ 85° for CS2842A/CS2843A, 0° ≤ kΩ 3.3 nF for sawtooth mode (see Figure 7 CS2842A/CS2843A Min Test Conditions = 1 ...
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... Parameters measured at trip point of latch with V 6. Gain defined as ΔV /ΔV COMP SENSE *Adjust V above the start threshold before setting (−25° ≤ T ≤ 85° for CS2842A/CS2843A, 0° ≤ kΩ 3.3 nF for sawtooth mode (see Figure 7 CS2842A/CS2843A Min Test Conditions = 2 ...
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... T 400 300 200 kΩ T 100 .0005 .001 .002 .003 .005 C (μF) T Figure 2. Oscillator Frequency vs. C (−25° ≤ T ≤ 85° for CS2842A/CS2843A, 0° ≤ kΩ 3.3 nF for sawtooth mode (see Figure 7 CS2842A Min Typ Max − 9 Symbol Á Á Á Á Á ...
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ERROR AMP ADJUST 5.0 kΩ Sense 4.7 kΩ ADJUST V CC ON/OFF Command CSX842A OFF I CC < < 1 ...
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V REF * V lower REF * V upper V REF * lower REF * I ...
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... ORDERING INFORMATION Device Temperature Range CS2842ALN8 CS2843ALN8 −25°C to 85°C CS2842ALD14 CS2842ALDR14 CS3842AGN8 CS3842AGD8 CS3842AGDR8 CS3842AGD14 CS3842AGDR14 0°C to 70°C CS3843AGN8 CS3843AGD8 CS3843AGDR8 CS3843AGD14 CS3843AGDR14 Package DIP−8 DIP−8 SO−14 SO−14 DIP−8 SO−8 SO−8 SO−14 SO−14 DIP−8 SO− ...
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F −A− NOTE 2 C −T− N SEATING PLANE 0.13 (0.005) M −X− −Y− −Z− 0.25 (0.010 ...
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... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...