JAJSGV8B September 2019 – December 2019 DRV8904-Q1 , DRV8906-Q1 , DRV8908-Q1 , DRV8910-Q1 , DRV8912-Q1
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
If at any time the input supply voltage on the VM pin rises above the VOVP threshold, all of the half-bridges are disabled, the charge pump is disabled, and the nFAULT pin is driven low as shown in Figure 50. The OVP bit is also latched high in the IC status (IC_STAT) register. Normal operation resumes (driver operation and the nFAULT pin is released) when the VM overvoltage condition is removed. The OVP bit remains set until cleared through the CLR_FLT bit.
An extended overvoltage operation is also supported in this device for higher over-voltage range up to 32-V. This operation is enabled by setting the EXT_OVP bit in the configuration (CONFIG_CTRL) register.