It also has an inverter gate drive with a bootstrap circuit
for high-side power supply, as well as emitter shunts (30 m?) for vastly improved motion control.
The IC itself consists of all of the necessary power elements (six IGBTs, three pre-drive ICs, and six flyback diodes) needed to configure the main circuit of an inverter, as well as a bootstrap circuit
(three bootstrap diodes and three boot resistors) as a highside drive power supply.
An integrated bootstrap circuit
for each high side pre-driver requires only an external capacitor.
Additional space savings are realized because the TDA21201 does not require the bootstrap circuit
. This integrated switch combines a gate driver and two OptiMOS[R] power MOSFET switches in a single industry-standard TO220 package that requires only input and output filters and a PWM (pulse-width modulation) controller to crea te a complete DC/DC voltage converter for applications in which power dissipation is a concern.