LM137H/883 datasheet by Texas Instruments

LM137H/883 Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the LM137H/883?
  The maximum power dissipation of the LM137H/883 is 1.5W. However, it's recommended to derate the power dissipation to 1W or less to ensure reliable operation.
• How do I ensure stability in the voltage regulator circuit using the LM137H/883?
  To ensure stability, it's essential to use a minimum output capacitance of 10uF, and a maximum ESR (Equivalent Series Resistance) of 5 ohms. Additionally, the input capacitor should be at least 10uF with an ESR of 5 ohms or less.
• What is the recommended input voltage range for the LM137H/883?
  The recommended input voltage range for the LM137H/883 is 7V to 40V. Operating the device outside this range may affect its performance and reliability.
• Can I use the LM137H/883 as a current source?
  Yes, the LM137H/883 can be used as a current source. The device has a built-in current limiting feature that allows it to operate as a current source. However, the output current should be limited to 1.5A or less to ensure reliable operation.
• How do I protect the LM137H/883 from overvoltage and undervoltage conditions?
  To protect the LM137H/883 from overvoltage and undervoltage conditions, it's recommended to use a voltage supervisor or a voltage monitor IC that can detect and respond to voltage faults. Additionally, using a TVS (Transient Voltage Suppressor) diode can help protect the device from voltage transients.