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Showing 418 results View by: Thread Post Sort by
    Answered
  • lm339: Prevent comparator output from pulled high when comparator turns on in the beginning.

    Jose Peeterson20
    Jose Peeterson20
    Resolved
    Part Number: LM339 Hello, I have an overvoltage protection (OVP) in a 380V power supply. Overvoltage protection is at 420V. This power supply does not have a 380V discharge circuit so the output still discharges slowly when the output is turned off…
    • Resolved
    • over 7 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: Output sink current of LM339-N

    Paul Grohe
    Paul Grohe
    Hello Nitish, Don't confuse Min and Max and Typ.. The 16mA is a "typical" value, as it is in the 'TYP" column. Typicals are not guaranteed. Because the 6mA is in the "MIN" column, it means 6mA is the MINIMUM amount of current we guarantee the LM339…
    • over 8 years ago
    • Amplifiers
    • Amplifiers forum
  • testing components LM358A, LM339

    Vaidehi Oruganti
    Vaidehi Oruganti
    Other Parts Discussed in Thread: LM339 , LM358A Hello, I have an induction heater circuit with operational amplifiers LM358A and LM339. The induction heater circuit consists a bridge rectifier, IGBT, PWM controller + MOSFET module, LC tank circuit…
    • over 9 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • RE: LM339: Junction-to-case (top) thermal resistance (RθJC) for PW package

    Paul Grohe
    Paul Grohe
    Resolved
    Hello Kum Hoo, See below. LM339PWR Theta JA-High K (standard datasheet value) 120.0 Theta JC, top (standard datasheet value) 59.0 Theta JB (standard datasheet value) 68.8 Psi JT (standard datasheet value) 9.9 Psi JB (standard datasheet value) 68…
    • over 8 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • About unused channel of LM358 and LM339

    Satoshi
    Satoshi
    Resolved
    Other Parts Discussed in Thread: LM339 , LM358 , LM393-N , LM393 Customer will connect unused channel of LM358 and LM339 (please see below), is this correct? ※VIN+:+15V, VIN-:GND Customer is already made these circuit, they doesn't want to change…
    • Resolved
    • over 9 years ago
    • Amplifiers
    • Amplifiers forum
  • lm339 as amplifier

    Kamal Najmi
    Kamal Najmi
    Other Parts Discussed in Thread: LM339 hi i want to use this device (LM339) as an op amp, my circuit look out as below, please let me know your email so that i can send you the sch. When have built this simple circuit to experiment, in the simulation…
    • over 10 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • LM339 - Vicr, Vi range

    Hirotaka Matsumoto
    Hirotaka Matsumoto
    Resolved
    Other Parts Discussed in Thread: LM339 Hi all, Would you mind if we ask LM339? <Q1> About Vicr, the datasheet shows that Vicr range are "25°C 0 to Vcc–1.5", "Full range 0 to Vcc-2.0". So, IN+ and IN-(both) must satisfy this range, mustn't they? <Q2> Input…
    • Resolved
    • over 10 years ago
    • Amplifiers
    • Amplifiers forum
  • LM339 faulty behavior possible defect

    Rob Hingle
    Rob Hingle
    Other Parts Discussed in Thread: LM339 I have a circuit that has been in use for years and in at least 100 units, but there have been one or two returned for repair that seem to have a faulty LM339 at the root of their problems. The circuit is a latching…
    • over 10 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: Response time matching of the LM339

    Ron Michallick
    Ron Michallick
    Christopher, Data attached for 5mV overdrive data sheet parameter. 0511.LM339 prop delay matching.xlsx
    • over 10 years ago
    • Amplifiers
    • Amplifiers forum
  • LM339 -Vsingel to IN+ at VCC = 12VDC and GND = 0 (AGND)

    GaryC
    GaryC
    Other Parts Discussed in Thread: LM339 We use LM339 for the protection function. The VCC is 12VDC and GND is connect to system ground. Since our IN+ will have negative voltage input, around -0.5V. I would like to know this -0.5V will be damaged the IN…
    • over 9 years ago
    • Amplifiers
    • Amplifiers forum
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