MAX7358EUG+ datasheet by Maxim Integrated Products

MAX7358EUG+ Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the MAX7358EUG+?
  The recommended layout and placement for the MAX7358EUG+ involves keeping the device close to the battery, using a solid ground plane, and minimizing the length of the battery connections. Additionally, the device should be placed away from high-frequency noise sources and heat sources.
• How do I ensure the accuracy of the fuel gauge readings?
  To ensure the accuracy of the fuel gauge readings, it is essential to calibrate the device during manufacturing, use a high-accuracy voltage reference, and compensate for temperature effects. Additionally, the battery's state of charge should be updated regularly to maintain accuracy.
• What is the maximum allowed voltage on the VBATT pin?
  The maximum allowed voltage on the VBATT pin is 5.5V. Exceeding this voltage can damage the device. It is recommended to use a voltage regulator or a voltage limiter to ensure the voltage on the VBATT pin does not exceed 5.5V.
• How do I handle the device's power-on reset (POR) and brown-out reset (BOR) features?
  The device's POR and BOR features can be handled by connecting a capacitor to the VCC pin and ensuring that the power supply is stable before the device is powered on. Additionally, the device's reset output can be used to reset the system during power-on or brown-out conditions.
• What is the recommended method for updating the battery's state of charge?
  The recommended method for updating the battery's state of charge involves using the device's Coulomb counter and adjusting the state of charge based on the battery's capacity, age, and temperature. The device's data sheet provides more information on how to implement this.