The recommended layout and placement for the LTC2910CDHC involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the device close to the power source. A 4-layer board with a solid ground plane is recommended. Refer to the Linear Technology application note AN137 for more details.
To ensure accurate voltage monitoring, use a high-impedance input source, keep the input traces short and shielded, and avoid noise injection into the input pins. Also, ensure that the input voltage is within the specified range and that the device is operated within its recommended operating conditions.
The maximum cable length for the I2C interface of the LTC2910CDHC depends on the clock frequency and the capacitance of the cable. As a general rule, the cable length should be limited to 10 inches (25 cm) or less to ensure reliable operation. For longer cable lengths, use a repeater or a buffer to maintain signal integrity.
The power-on reset (POR) of the LTC2910CDHC can be handled by adding an external capacitor between the POR pin and ground. The capacitor value should be chosen based on the power-up time and the desired reset pulse width. A 10nF to 100nF capacitor is typically used.
The thermal derating of the LTC2910CDHC is typically 1.5°C/W above 25°C. This means that the device's power dissipation should be derated by 1.5°C/W for every degree above 25°C to ensure reliable operation.
LTC2910CDHC#PBF datasheet
by Linear Technology
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