DRV8303_15 Datasheet, PDF (22/37 Pages) Texas Instruments – Three Phase Gate Driver

DRV8303
SLOS846B – SEPTEMBER 2013 – REVISED NOVEMBER 2015
8 Application and Implementation
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NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The DRV8303 is a gate driver designed to drive a 3-phase BLDC motor in combination with external power
MOSFETs. The device provides a high level of integration with three half-bridge gate drivers, two current shunt
amplifier, and overcurrent protection.
8.1.1 Gate Driver Power-Up Sequencing Errata
The DRV8301 gate drivers may not correctly power up if a voltage greater than 8.5 V is present on any SH_X pin
when EN_GATE is brought logic high (device enabled) after PVDD power is applied (PVDD1 > PVDD_UV). This
sequence should be avoided by ensuring the voltage levels on the SH_X pins are less than 8.5 V when the
DRV8301 is enabled through EN_GATE.
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