LTC4085EDE#PBF datasheet by Linear Technology

LTC4085EDE#PBF Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LTC4085EDE?
  The maximum input voltage that can be applied to the LTC4085EDE is 28V, but it's recommended to keep it below 24V for reliable operation.
• How do I ensure the LTC4085EDE is in a low-power state during shutdown?
  To ensure the LTC4085EDE is in a low-power state during shutdown, make sure the SHDN pin is pulled low and the input voltage is removed or reduced to less than 2V.
• What is the recommended layout and placement for the LTC4085EDE to minimize EMI and noise?
  For optimal layout and placement, keep the input and output capacitors close to the IC, use a solid ground plane, and minimize trace lengths and loops. Also, place the IC away from high-frequency components and keep the SHDN pin trace short and direct.
• Can I use the LTC4085EDE with a non-rechargeable battery?
  Yes, the LTC4085EDE can be used with a non-rechargeable battery, but it's essential to ensure the battery's voltage and current characteristics meet the IC's requirements. Additionally, consider the battery's self-discharge rate and its impact on the overall system design.
• How do I calculate the maximum charge current for a specific battery using the LTC4085EDE?
  To calculate the maximum charge current, refer to the datasheet's charge current calculation formula, which takes into account the battery's capacity, chemistry, and recommended charge rate. Also, consider the IC's internal resistance and the sense resistor value.