SN75454BP datasheet by Texas Instruments

SN75454BP Frequently Asked Questions (FAQs)

• What is the maximum current that the SN75454BP can handle?
  The SN75454BP can handle a maximum current of 1A per channel, with a total current limit of 2A for all channels combined.
• How do I protect the SN75454BP from back-EMF when driving inductive loads?
  To protect the SN75454BP from back-EMF, you can add a flyback diode (also known as a freewheeling diode) in parallel with the inductive load. This diode allows the current to continue flowing when the switch is turned off, preventing the back-EMF from damaging the IC.
• What is the minimum input voltage required for the SN75454BP to operate?
  The SN75454BP requires a minimum input voltage of 4.5V to operate. However, it's recommended to use a voltage of at least 5V for reliable operation.
• Can I use the SN75454BP to drive a relay?
  Yes, the SN75454BP can be used to drive a relay. However, you need to ensure that the relay's coil current is within the IC's current rating, and that you provide a suitable flyback diode to protect the IC from back-EMF.
• How do I reduce the power dissipation of the SN75454BP?
  To reduce power dissipation, you can use a heat sink, reduce the operating frequency, or use a lower voltage supply. You can also consider using a more efficient driver IC or a MOSFET-based solution.