LT4356HMS-3 datasheet by Linear Technology

LT4356HMS-3 Frequently Asked Questions (FAQs)

• What is the maximum surge current that the LT4356HMS-3 can handle?
  The LT4356HMS-3 can handle surge currents up to 100A for 1ms, but it's recommended to limit the surge current to 50A for 1ms to ensure reliable operation.
• How do I ensure that the overvoltage protection (OVP) threshold is accurate?
  To ensure accurate OVP threshold, make sure to decouple the VCC pin with a 1uF ceramic capacitor to GND, and keep the OVP pin (OV) connected to a low-impedance node, such as the input voltage or a voltage divider.
• What is the recommended layout for the LT4356HMS-3 to minimize EMI and noise?
  To minimize EMI and noise, keep the input and output capacitors close to the device, use a solid ground plane, and keep the high-current paths short and wide. Also, avoid routing high-frequency signals near the device.
• Can I use the LT4356HMS-3 in a hot-swap application?
  Yes, the LT4356HMS-3 is suitable for hot-swap applications. It can handle high inrush currents and has a built-in soft-start feature to reduce the stress on the device during hot-plug events.
• How do I adjust the undervoltage lockout (UVLO) threshold?
  The UVLO threshold can be adjusted by connecting a resistor divider network between the VCC pin and the UV pin. The UVLO threshold is 0.4V x (R1/R2 + 1), where R1 and R2 are the resistors in the divider network.