PGYBMSChoosing MOSFETs for BMS? Rds(on) is NOT enough.
Many designs fail because engineers optimize only for conduction loss.
In reality
Rds(on) vs thermal rise
Gate charge (Qg) → switching speed & driver stress
SOA (Safe Operating Area) under fault conditions
⚠️ Key insight:
Short-circuit events stress MOSFETs far beyond steady-state specs.
👉 Rule of thumb:
Always validate MOSFET behavior under pulse conditions, not just DC.