LM339PWRG4 datasheet by Texas Instruments

LM339PWRG4 Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the LM339PWRG4?
  The maximum power dissipation of the LM339PWRG4 is 640mW, which is calculated based on the package thermal resistance and the maximum junction temperature.
• How do I ensure the stability of the comparator output?
  To ensure the stability of the comparator output, it is recommended to use a bypass capacitor between the VCC pin and GND, and to minimize the stray capacitance on the output pin.
• What is the recommended operating voltage range for the LM339PWRG4?
  The recommended operating voltage range for the LM339PWRG4 is 2V to 36V, although the device can operate up to 40V with reduced performance.
• How do I handle the input voltage range for the comparator?
  The input voltage range for the comparator is from -0.3V to VCC + 0.3V. Inputs should be limited to this range to prevent damage to the device.
• What is the purpose of the offset null pins ( pins 1 and 5)?
  The offset null pins (pins 1 and 5) are used to adjust the input offset voltage of the comparator. They can be connected to a potentiometer or a fixed resistor to trim the offset voltage.