Two built-in gate drivers from ST present programmable present management for driving three-phase brushless motors in shopper and industrial gear. Working from 6 V to 50 V, the STDRIVE102H helps single-shunt management, whereas the STDRIVE102BH handles three-shunt management—each configured through two analog pins. Every machine can supply as much as 1 A and sink as much as 2 A.
A easy resistor divider packages the gate-drive present, permitting the triple half-bridge drivers to manage six exterior N-channel MOSFETs. This helps optimize energy stage efficiency, together with management of switching slew price, with out the necessity for discrete gate resistors. An built-in cost pump powers the three high-side drivers, enabling steady on-time for the high-side MOSFETs.
To speed up improvement with the STDRIVE102H and STDRIVE102BH gate drivers, the EVLDRIVE102H and EVLDRIVE102BH analysis boards assist field-oriented and six-step management, that includes onboard back-EMF sensing and inputs for place sensors. Commonplace headers hook up with STM32 Nucleo boards, and the X-CUBE-MCSDK toolkit supplies the mandatory software program and code.
The STDRIVE102H and STDRIVE102BH can be found in 5×5-mm or 6×6mm QFN packages, priced from $1.20 every in plenty of 1000 items.
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