Answered

• TLC556: Does the TRIG input have protection diodes? If so, what is the maximum allowed input current?

  

  Mike Andrews

  Resolved

  Part Number: TLC556 Hi, I actually used a TLC556 in a new design. Never thought I'd have the chance again. Go figure. :-) Because the TRIG input is edge-sensitive I used the one-shot output of the first-half of the dual-timer to generate an RC pul…

  • Resolved

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

• TLC556: TLC556ID design help

  

  Zhonghui Xu

  TI Thinks Resolved

  Part Number: TLC556 Hi team, How the timer chip realize that the output pin exports high level for 10 seconds and low level for 50 seconds. And would you tell me how to set the resistors and capacitors value if the chip is capable to do so. Best regareds…

  • over 2 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• TLC556: Unused pins

  

  Elisha Tarroza71

  Resolved

  Part Number: TLC556 Other Parts Discussed in Thread: TLC555 Hello, Datasheet mentions that unused input pins should be connected to "appropriate" logic levels. May I know if these are the voltages at the electrical characteristics? Since there…

  • Resolved

  • over 3 years ago
  • Clock & timing
  • Clock & timing forum

• TLC556: Control of B from A

  

  Erik Persson

  Part Number: TLC556 Would like to switch astable 556B on/off by one shot 556A. Low speeds. Regards, Erik <email address removed>

  • over 4 years ago
  • Clock & timing
  • Clock & timing forum

• TLC556: Temperature drift of External cap

  

  Shunsuke Nagata

  TI Thinks Resolved

  Part Number: TLC556 Hi, I would like to know the selection for the external CAP. The capacitor value will be shifted depend on ambient temperature. Is there recommendation accuracy if I use calculation in datasheet? (Should I select +/-10%CAP depending…

  • over 4 years ago
  • Clock & timing
  • Clock & timing forum

• TLC556: TLC556MD

  

  Norm Donkersloot

  Part Number: TLC556 Hello, We have a design which uses the TLC556 dual timer on a circuit board. While investigating solderability issues with surface mount test points where x-rays of the test points were taken, the question came up on whether the TLC556…

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• TLC556: capacitor for CONT pin

  

  jessica gu

  Resolved

  Part Number: TLC556 Is there any requirement for the accuracy and TCR of this capaciter. what side effect will it have if the accuracy changed from 2% to 5%? Thanks!

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum
Answered

• TLC556: capacitor for CONT pin

  

  Hiroshi Sato

  Resolved

  Part Number: TLC556 Hello, Our customer have a question for TLC556. In datasheet page 10., we can see "The 0.1uF capacitor at CONT in Figure 3 decreases the period by about 10%". Does it mean that it makes the time tPHL and tPLH shorter and…

  • Resolved

  • over 5 years ago
  • Clock & timing
  • Clock & timing forum

• RE: TLC555: Maximum voltage on input pins when Vcc=0V

  

  Chris Featherstone

  Simone, Discussing this with the design team this situation is ok. The capacitor will take the path of least resistance which will be through the resistive network. This would be normal for all applications when the 555 turned off with the system power…

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

• TLC556 - Discharge pin

  

  SERGIO VINOCUR

  I plan to have a pull-up resistor on the Discharge pin to a voltage higher than Vdd (for level shifting). What is the maximum voltage allowable on the Discharge pin ? Is the Discharge pin internally clamped to Vdd?

  • over 10 years ago
  • Amplifiers
  • Amplifiers forum

Didn't find what you are looking for? Post a new question.