MOT1115BT TOLL Package MOSFET has critical value in BMS (Battery Management System) applications in Electric Vehicles. It’s ultra-low on-resistance, small package size, and excellent thermal performance make it an ideal choice for battery protection systems.

For example, below is a 200A Demo PCBA in 24 series, using 20pcs MOT1115BT Mosfets per board.



Core performance advantages

TOLL package MOSFETs offer three key advantages in BMS applications: ultra-low RSD(on) (1-1.3mΩ), extremely low package resistance and parasitic inductance, and excellent heat dissipation. Compared to the traditional TO-263 package, the TOLL package reduces board footprint by 30%, height by 50%, and board dimension by 60%. They are particularly suitable for high power density applications.
 
BMS Application Scenarios
 
In battery management systems, the MOT1115BT TOLL package Mosfet mainly performs the following key functions：
 
Battery charge/discharge control: As a core switching component, it precisely controls the battery's charging and discharging process, preventing overcharging and over-discharging. Its low RDS(on) significantly reduces power consumption, with a temperature rise of only 61°C under a continuous 40 Amps current, effectively extending battery life.
 
Short circuit protection: When the system detects a short circuit current, the TOLL package Mosfet with its fast response capability (turn-off time up to 0.5μs) and powerful avalanche energy (up to 3000mJ), can cut off the current within 10μS to 100μS, it can protect the battery from damaging.
 
Over-temperature protection: cooperated with a temperature sensor, the charging and discharging circuit is quickly cut off when the battery temperature exceeds a set threshold to prevent thermal runaway. The TOLL package's design with heat dissipation in double sides can reduce thermal resistance by nearly 50%. It can significantly improve system reliability.
 
Technical Specifications and Features
MOT1115BT TOLL package Mosfet has great parameters: VDss at 100V, ID(A) at 375A, RDS(on) at 1.0-1.3mΩ, Qg at 60nC, and EAS at 2500mJ. These parameters enable it to withstand instantaneous high energy throughput, and meet the stringent requirements of BMS for high power density and high reliability.
 
Application Field
Inmark’s MOT1115BT Toll package Mosfet has been widely used in BMS of new energy vehicles , energy storage systems, electronic power tools, drone and other applications.