PISG-100M-01 - Fastron

PISG-100M-01 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  Fastron recommends a 4-layer PCB with a dedicated ground plane and thermal vias to dissipate heat. A minimum of 2 oz copper thickness is recommended for the power traces. Additionally, a thermal pad on the bottom of the device should be connected to a heat sink or a thermal interface material.
• How do I ensure the device is properly soldered and avoid damage during the reflow process?
  Fastron recommends using a soldering profile with a peak temperature of 260°C and a dwell time of 30-60 seconds. The device should be handled with care to avoid mechanical stress, and the soldering process should be done in a nitrogen atmosphere to minimize oxidation.
• What is the maximum allowed voltage transient and how can I protect the device from voltage spikes?
  The PISG-100M-01 can withstand voltage transients up to 150% of the rated voltage for a duration of 100 ms. To protect the device from voltage spikes, Fastron recommends using a TVS diode or a voltage clamp circuit in parallel with the device.
• How do I calculate the power dissipation and junction temperature of the device?
  The power dissipation can be calculated using the formula Pd = (Vin - Vout) x Iout. The junction temperature can be estimated using the thermal resistance (Rth) and the power dissipation, TJ = TA + (Rth x Pd), where TA is the ambient temperature.
• What is the recommended input and output capacitance for optimal performance?
  Fastron recommends using a minimum of 10 uF ceramic capacitor at the input and a minimum of 22 uF ceramic capacitor at the output. The capacitors should be placed as close as possible to the device pins to minimize parasitic inductance.