CS3843A Cherry Semiconductor Corporation, CS3843A Datasheet
CS3843A
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CS3843A Summary of contents
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... CS2842A/CS3842A CS2843A/CS3843A Off-Line Current Mode PWM Control Circuit with Undervoltage Lockout Description The CS284XA, CS384XA provides all the output stage is enabled. Ion the necessary features to implement implant resistors provide tighter con- off-line fixed frequency current-mode trol of undervoltage lockout. control with a minimum number of Other features include low start-up external components ...
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... I = 20mA SINK I = 200mA SINK Output High Level I = 20mA SOURCE I = 200mA SOURCE ≤ 70˚C for CS3842A/3843A 15V (Note 1 3.3nF for sawtooth mode (see Figure 3), unless otherwise stated. T CS2842A/CS2843A CS3842A/CS3843A MIN TYP MAX MIN TYP 4.95 5.00 5.05 4.90 5. 0.2 0.4 0.2 4.90 5 ...
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... C = 3.3nF CS2842A CS3842A CS2843A/CS3843A TYP MAX MIN TYP MAX MIN TYP 14.5 16.0 17.5 7.8 8 8.5 10.0 11.5 7.0 7.6 3. Parameter measured at trip point of latch with VFB=0. 4. Gain defined as: ∆ ...
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Typical Performance Characteristics Oscillator Frequency 900 800 R =680Ω T 700 600 500 R =1.5kΩ T 400 300 200 R =10kΩ T 100 .0005 .001 .002 .003 .005 .01 .02 .03 .04 C (µ ...
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Circuit Description: continued V OSC OSC RESET EA Output Switch Current OUT V OUT Figure 2: Timing Diagram for key CS2841B parameters V REF R T OSC C T Gnd Timing parameters V upper V lower t ...
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... SO Narrow (tape & reel) CS3843AGN8 • 8L PDIP CS3843AGD8 • Narrow CS3843AGDR8 • Narrow (tape & reel) CS3843AGD14 • 14L SO Narrow CS3843AGDR14 • 14L SO Narrow (tape & reel) Rev. 10/23/98 PACKAGE THERMAL DATA Thermal Data PDIP SO Narrow SO Narrow R typ 52 45 Min Θ ...