LM293N datasheet by STMicroelectronics

LM293N Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM293N?
  The maximum input voltage that can be applied to the LM293N is 26V, but it's recommended to keep it below 20V for reliable operation.
• How do I ensure the LM293N is stable and doesn't oscillate?
  To ensure stability, a minimum output capacitance of 10uF is recommended, and the ESR (Equivalent Series Resistance) of the capacitor should be less than 5 ohms.
• What is the minimum input voltage required for the LM293N to regulate properly?
  The minimum input voltage required for the LM293N to regulate properly is 7.5V for the 5V output version, and 10.5V for the 12V output version.
• Can I use the LM293N in a high-temperature environment?
  The LM293N is rated for operation up to 125°C, but the maximum junction temperature should not exceed 150°C. Derating is required for high-temperature operation.
• How do I calculate the power dissipation of the LM293N?
  The power dissipation of the LM293N can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.