DS1267E-50+ datasheet by Maxim Integrated Products

DS1267E-50+ Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the DS1267E-50+ to ensure optimal performance?
  A good PCB layout for the DS1267E-50+ involves keeping the input and output traces separate, using a solid ground plane, and placing the device close to the battery. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
• How do I ensure the accuracy of the battery voltage measurement?
  To ensure accuracy, it's essential to use a high-precision voltage reference, such as the internal reference of the DS1267E-50+, and to minimize noise on the VBAT pin. Additionally, averaging multiple readings can help to reduce noise and increase accuracy.
• What is the maximum current that the DS1267E-50+ can supply to the load?
  The DS1267E-50+ can supply up to 150mA to the load, but this is dependent on the input voltage and the output voltage. It's essential to check the datasheet for the specific current limits based on the application.
• How do I implement overcharge protection with the DS1267E-50+?
  The DS1267E-50+ has a built-in overcharge protection feature that can be enabled by connecting the OVP pin to the desired voltage threshold. When the battery voltage exceeds this threshold, the device will automatically disconnect the charger.
• Can I use the DS1267E-50+ with a non-rechargeable battery?
  No, the DS1267E-50+ is designed specifically for rechargeable batteries, such as lithium-ion or nickel-metal hydride batteries. Using it with a non-rechargeable battery may not provide accurate results and may even damage the device.