Texas Instruments recommends a compact layout with the BQ3287EAMT placed close to the battery, using short traces and minimizing loop areas to reduce EMI. A 4-layer PCB with a solid ground plane is recommended. Refer to the application note SLUA443 for more details.
The selection of external components depends on the specific application requirements. Texas Instruments provides a component selection guide in the datasheet, as well as a web-based calculator tool to help designers choose the optimal components. Additionally, the application note SLUA443 provides guidance on component selection and layout considerations.
The BQ3287EAMT can handle input voltages up to 18V, and it has an internal overvoltage protection (OVP) circuit that disables the device when the input voltage exceeds 18.5V. The OVP threshold can be adjusted using an external resistor divider network.
The BQ3287EAMT is designed to handle battery discharge and recharge cycles. It has a built-in battery protection circuit that prevents over-discharge and over-charge. However, the number of charge cycles and battery life will depend on the specific battery chemistry, capacity, and usage patterns. Refer to the application note SLUA443 for more information on battery protection and charging considerations.
The BQ3287EAMT has a maximum junction temperature of 150°C. To ensure reliable operation in high-temperature environments, designers should consider thermal management techniques such as heat sinking, thermal vias, and PCB layout optimization. Texas Instruments provides thermal design guidelines in the datasheet and application notes.
