SE555FKB datasheet by Texas Instruments

SE555FKB Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the SE555FKB?
  The recommended operating voltage range for the SE555FKB is 4.5V to 15V, although it can operate up to 18V with reduced performance.
• How do I ensure the SE555FKB oscillator starts reliably?
  To ensure reliable oscillator startup, connect a 1kΩ to 10kΩ resistor between pin 2 (trigger) and pin 6 (threshold), and a 0.01μF to 0.1μF capacitor between pin 2 and ground.
• What is the maximum frequency the SE555FKB can operate at?
  The SE555FKB can operate up to 2.1MHz, but the maximum frequency is dependent on the values of the external resistors and capacitors used in the oscillator circuit.
• Can I use the SE555FKB as a voltage regulator?
  While the SE555FKB can be used as a voltage regulator, it's not recommended due to its limited current sourcing capability (200mA) and lack of built-in voltage regulation features. A dedicated voltage regulator IC is a better choice.
• How do I reduce power consumption in the SE555FKB?
  To reduce power consumption, use a lower operating voltage, minimize the value of the resistors in the oscillator circuit, and consider using a CMOS version of the 555 timer (e.g., TLC555) which has lower power consumption.