• LMC555: LMC555 Threshold level temperature varitions

  

  MIKHAIL SALOV

  TI Thinks Resolved

  Part Number: LMC555 Good day Colleagues, I understand, the threshold highly dependand on external RC tolerances, but could you tell me how this circuit inside depends on temperature? the datasheet says the paramiters at +25 degC. Could you tell me what…

  • 19 days ago
  • Clock & timing
  • Clock & timing forum
Answered

• Is LMC555 decoupling electrolytic capacitor still required?

  

  Sergej Dziuba

  Resolved

  Hi! We are using LMC555CMMX/NOPB in our schematics. 1.Please explain me, why do we need 1uF electrolytic capacitor if I can use ceramic capacitor instead electrolytic? 2. Using 0.1uF + buck capacitor(like C > 1uF ) in parallel is not actual if both capacitors…

  • Resolved

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

• LMC555: Delayed reset circuit timing difference from simulation

  

  Jonathan Fisher

  Part Number: LMC555 Other Parts Discussed in Thread: TLC555 Hello, I'm having trouble with my LMC555 timer not performing the way I expect. My simulation in PSpice for TI gives the results I expect, but on the board I see something similar but with different…

  • 3 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMC555: IC with National Logo Available?

  

  Ambroise Suter

  Resolved

  Part Number: LMC555 Hello, We are wondering if the LMC555CM/NOPB is still available with National Semiconductor logo or only with the TI logo? Thank you and best regards, Ambroise

  • Resolved

  • 4 months ago
  • Clock & timing
  • Clock & timing forum

• LMC555: What is the main cause of VCTRL and VTRIG voltage variation?

  

  Kazuya Nakai59

  TI Thinks Resolved

  Part Number: LMC555 Hello guys, One of my customers is considering using LMC555 for their new products. At this moment, they have the following question. Could you please give me your reply? Q. VCTRL and VTRIG voltage have about +/-10% variation. I think…

  • 4 months ago
  • Clock & timing
  • Clock & timing forum

• LMC555: EVM board availability/ similar type

  

  Gopi Pradeep Reddy Sangala

  TI Thinks Resolved

  Part Number: LMC555 Hi Team, I would like to know do we have any evaluation board for this device or similar type. I am TI employee, you can send an email response for this question at a0225189@ti.com. Regards, Gopi

  • 7 months ago
  • Clock & timing
  • Clock & timing forum

• LMC555: Out drive current vs Vsupply

  

  Richard Micheel

  TI Thinks Resolved

  Part Number: LMC555 What is the output drive current (sink/source) for the LMC555CTPX over the voltage range? Spec is only given for 15V in the datasheet. Particularly interested in capabilities at 3V4

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum

• LMC555: I want to use a 555 timer to create a 200MS delay on the EN pin of BUCK DC-DC. I don't know how to design it? Is there a more suitable solution recommended

  

  Tonyx.wu

  Part Number: LMC555 I want to use a 555 timer to create a 200MS delay on the EN pin of BUCK DC-DC. I don't know how to design it? Is there a more suitable solution recommended

  • 7 months ago
  • Clock & timing
  • Clock & timing forum

• LMC555: LMC555 at VS = 3.3V

  

  King Tsai

  TI Thinks Resolved

  Part Number: LMC555 Hello, Team may i know the "Vil", and "Vih" at Vs = 3.3V condition? it didn`t show on datasheet.

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum
Answered

• LMC555: Minimum frequency and maximum output current

  

  Vijetha Jain

  Resolved

  Part Number: LMC555 Hello, I want to use LMC555IM as an astable multivibrator to generate square wave. What is the lowest possible frequency? The datasheet says 4kHz. Can I configure it to 1Hz? Can this part drive 80mA load? The datasheet does not talk…

  • Resolved

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum

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