BQ2204ASN-N datasheet by Texas Instruments

BQ2204ASN-N Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the BQ2204ASN-N?
  Texas Instruments recommends a compact layout with the BQ2204ASN-N placed close to the battery, and the input capacitors (CIN) placed as close as possible to the device. The output capacitors (COUT) should be placed near the load.
• How do I optimize the BQ2204ASN-N for low quiescent current (IQ) operation?
  To minimize IQ, ensure the EN pin is driven high only when the converter is active. Use a low-leakage input capacitor (CIN) and minimize the output capacitor (COUT) size. Also, consider using a low-VESD (Voltage-Error-Signal-Delay) version of the device.
• What is the maximum input voltage rating for the BQ2204ASN-N?
  The maximum input voltage rating for the BQ2204ASN-N is 18V, but it's recommended to operate within the 4.5V to 15V range for optimal performance and reliability.
• Can I use the BQ2204ASN-N in a high-temperature environment?
  The BQ2204ASN-N is rated for operation up to 85°C (TJ). However, for reliable operation, it's recommended to derate the device's performance and consider thermal management strategies, such as heat sinking or reducing the ambient temperature.
• How do I ensure the BQ2204ASN-N meets electromagnetic compatibility (EMC) requirements?
  To ensure EMC compliance, follow proper PCB layout and design guidelines, use a common-mode choke or ferrite bead on the input, and consider adding EMI filters or shielding to the design.