CS2841B ON Semiconductor, CS2841B Datasheet
CS2841B
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CS2841B Summary of contents
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... The CS2841B provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components. The CS2841B (a variation of the CS2843A) is designed specifically for use in automotive operation. The low start threshold voltage of 8.0 V (typ), and the ability to survive 40 V automotive load dump transients are important for automotive subsystem designs ...
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... Supply Voltage (Low Impedance Source) Output Current Output Energy (Capacitive Load) Analog Inputs (V , Sense) FB Error Amp Output Sink Current Lead Temperature Soldering 1. 10 seconds max seconds max above 183 C *The maximum package power dissipation must be observed. CS2841B Set/ 5.0 V Reset Reference Output Enable ...
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... These parameters, although guaranteed, are not 100% tested in production. 5. Parameter measured at trip point of latch with V 6. Gain defined as: DV COMP Sense v 0 Sense CS2841B (- 680 0.022 F for Triangular Mode Test Conditions = 1 ...
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... PACKAGE PIN DESCRIPTION PACKAGE PIN # DIP-8 SO- CS2841B (- 680 Test Conditions = 200 200 1.0 nF. Note 1.0 nF. Note OUT - = ...
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... Error Amp Adjust 5.0 k Sense Adjust 4.7 k CS2841B 100 .02 .03 .04 .05 Figure 3. Oscillator Duty Cycle vs COMP V REF 0 CS2841B 0.1 F Sense V OUT OSC GND C T Figure 4. Test Circuit http://onsemi.com REF 1 OUT GND ...
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... Current Figure 6. Timing Diagram for Key CS2841B Parameters CS2841B CIRCUIT DESCRIPTION When the power supply sees a sudden large output current increase, the control voltage will increase allowing the duty cycle to momentarily increase. Since the duty cycle tends to exceed the maximum allowed to prevent transformer ...
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... C10 2.0 k 0.1 F OSC GND C13 4.7 nF CS2841B The frequency and maximum duty cycle can be determined from the Typical Performance Characteristic graphs. Grounding High peak currents associated with capacitive loads necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to GND pin in a single point ground ...
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... VPR GND 0 REF CS2841B R4 C6 3.0 k 0.1 F OSC GND C9 470 pF CS2841B L1 C1 100 H 100 F 100 OUT 10 R5 SENSE 100 COMP C7 0. 2.0 k 1.0 nF 1N5818 Output Voltage 100 mA > 300 mA Figure 9. Boost Application http://onsemi.com ...
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... PLANE 0.13 (0.005 -T- K SEATING PLANE 0.25 (0.010 PACKAGE THERMAL DATA Parameter CS2841B PACKAGE DIMENSIONS DIP-8 N SUFFIX CASE 626-05 ISSUE SO-14 D SUFFIX CASE 751A-03 ISSUE 0.25 (0.010 ...
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... Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada CS2841B JAPAN: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Phone: 81-3-5773-3850 ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 10 CS2841B/D ...