The intelligent robot MOSFET solution covers the full range of requirements from micro level fine control of dexterous hands to high torque output for lower limb heavy loads. The core focuses on three goals: high dynamic response, low power consumption and endurance, and high reliability in closed environments. It is suitable for various models such as humanoid robots, industrial robotic arms, and service robots, and can use hundreds of MOSFETs per machine.

Core solution for joint motor drive
As the "power muscle" of the robot, it directly determines the motion accuracy and dynamic balance ability, and adapts in layers according to the load level:
Heavy duty lower limb joints (hip/knee/shoulder): Heketai HKTT330N09, 90V/330A, SGT process Rds (on) as low as 1.8m Ω, TOLL package parasitic inductance is extremely low, can easily cope with high-intensity working conditions such as walking, running, and landing impact, and has stable temperature rise during long-term heavy load operation
Mid load trunk joints (elbow/wrist/ankle): Heketai HKTG40C40, 40V/40A, with low switch loss and strong anti avalanche ability, suitable for high-frequency start stop and dynamic speed regulation of joints, resisting instantaneous voltage surges caused by motor commutation, making trunk movement smoother
Lightweight and agile hand/micro servo: Heketai HKTQ20C03, 20V/20A, DFN ultra small package, micro current control precision fully loaded, precise support for fingertip soft grasping and fine operation, long-term high-frequency operation with controllable temperature rise
Industrial High Voltage Joint Solution: VBE17R20S, 700V/20A, Superjunction SJ-Multi-EPI Technology, Suitable for 400V/600V Industrial Busbars, Supports 50kHz-100kHz High Frequency PWM, Significantly Improved Current Loop Response Speed

Power Management and Distribution Solutions
As a "transportation hub" for overall energy, it achieves efficient battery conversion and intelligent load distribution:
Main power path: VBL18R17SE, 800V/17A, TO263 package, balancing high voltage withstand voltage and 280m Ω low on resistance. As a key component of the main power switch or pre charging circuit, it achieves safe power on and fault isolation of the system
48V intelligent power distribution: VBQA4317, 30V/30A, DFN8 5 × 6 package, low thermal resistance design, used for independent power supply of multiple sensors and computing units, achieving modular energy-saving management
Low voltage auxiliary power supply: VBQF1206, 20V/58A, DFN8 (3x3) package, Rds (on) of only 5.5m Ω under 4.5V gate voltage, can be directly driven by 3.3V MCU, used for efficient switch control of small loads such as communication modules and laser radar

Safety and braking protection scheme
As the "safety bottom line" for robot operation, it ensures emergency shutdown and energy recovery in case of sudden working conditions:
Brake circuit: VBL2603, -60V/-130A, P-channel Trench process, Rds (on) as low as 3m Ω, with sufficient redundancy in high current on-off capability to ensure rapid and reliable brake action and prevent contact adhesion failure
Dynamic energy recovery: Equipped with high-speed gate drive IC UCC5350, the peak gate drive current is ≥ 2A, providing -5V negative pressure when turned off, suppressing bridge arm crosstalk, and achieving energy recharge to the battery during motor deceleration, extending the battery life by more than 10%
Input anti reverse protection: Ansenmei FDWS86380-F085, 80V/50A, DFNW8 package, with wettable side wings supporting AOI automatic detection, 11.3m Ω low conduction loss, no additional TVS required to resist load surge in 12V bus scenarios