ZHCSR87 December 2022 DRV8316C
PRODUCTION DATA
The nSLEEP pin manages the state of the DRV8316C family of devices. When the nSLEEP pin is low, the device goes to a low-power sleep mode. In sleep mode, all FETs are disabled, current sense amplifiers are disabled, buck regulator (if present) is disabled, the charge pump is disabled, the AVDD regulator is disabled, and the SPI bus is disabled. The tSLEEP time must elapse after a falling edge on the nSLEEP pin before the device goes to sleep mode. The device comes out of sleep mode automatically if the nSLEEP pin is pulled high. The tWAKE time must elapse before the device is ready for inputs.
In sleep mode and when VVM < VUVLO, all MOSFETs are disabled.
During power up and power down of the device through the nSLEEP pin, the nFAULT pin is held low as the internal regulators are enabled or disabled. After the regulators have enabled or disabled, the nFAULT pin is automatically released. The duration that the nFAULT pin is low does not exceed the tSLEEP or tWAKE time.