The MAX1935ETA+ requires careful layout and placement to ensure proper operation. Maxim recommends placing the device close to the battery, using short and wide traces for the power paths, and separating the analog and digital grounds. A solid ground plane is also recommended to reduce noise and EMI.
To optimize the performance of the MAX1935ETA+ in a high-noise environment, use a low-ESR capacitor for the input filter, add a ferrite bead or a common-mode choke to the input, and use a shielded cable for the battery connection. Additionally, consider adding a noise filter or a shielding around the device.
The MAX1935ETA+ can handle input voltages up to 28V, but it's recommended to operate within the specified input voltage range of 4.5V to 16V for optimal performance and reliability.
The output voltage of the MAX1935ETA+ can be programmed using an external resistor divider network connected to the FB pin. The output voltage can be calculated using the formula: VOUT = 0.8V x (1 + R1/R2), where R1 and R2 are the resistors in the divider network.
The thermal shutdown temperature of the MAX1935ETA+ is typically around 150°C, but it can vary depending on the specific device and operating conditions. It's recommended to ensure good thermal design and heat dissipation to prevent overheating.
MAX1935ETA+ datasheet
by Maxim Integrated Products
