Skip to datasheet
Dual brushed-DC motor driver

TB6612FNG Internal Circuitry

Explore the internal circuitry and functional stages of TB6612FNG.

Inside TB6612FNG

Two bridges and their control logic inside the package.

Compact TB6612FNG cutaway with two control channels, gate sequencing, H-bridges and shared standby and protection.
Original functional visualization. It explains signal flow rather than reproducing the silicon layout.

Explore the circuit

Select a stage to see its role and connections

Decode the commands

Each IN pair chooses polarity, brake or stop.

Sequence the switches

Gate control inserts dead time during transitions.

Drive both windings

Power comes from VM; PGND carries bridge return current.

Component view