555

Question 1

Applications

Answer 1

Flashing Lights
Waveform generation
Servo Control

Question 2

Voltage and current

Answer 2

Voltage- 5-15
Current max: 200mA

Question 3

Pin 2 (Trigger)

Answer 3

Initiate operation of IC

Active low trigger:
-When voltage on pin 2 changes from high to less that 1/3 Vcc, the Output becomes HIGH
-When the voltage changes from low to above 2/3 vcc, output goes low

Question 4

Pin 4 (Reset)

Answer 4

-Restart timer
-Normally connected to Vcc
-Triggered if pulled to ground

Question 5

Pin 5 (Control Voltage)

Answer 5

-Normally not connected
-0,1 uF capacitor can be connected to remove noise
-Can change 2/3 Vcc going low by changing control voltage

Question 6

Pin 6 (Threshold)

Answer 6

-Sets the Trigger Voltage
-When above 2/3 Vcc, flip flop is reset and Output goes low

Question 7

Pin 7 (Discharge)

Answer 7

-Provides discharge path for the timing capacitor and resistor
-When Output is low, capacitor at discharge will discharge