Functional description
Figure 7. Overcurrent protection
R7985A
The enable feature allows the device to be put into standby mode. With the EN pin lower than 0.3 V, the device is disabled and the power consumption is reduced to less than 30 A.
With the EN pin lower than 1.2 V, the device is enabled. If the EN pin is left floating, an internal pull-down ensures that the voltage at the pin reaches the inhibit threshold and the device is disabled. The pin is also V
CC
compatible.
The thermal shutdown block generates a signal that turns off the power stage if the junction temperature goes above 150 °C. Once the junction temperature goes back to about 120 °C, the device restarts in normal operation. The sensing element is very close to the PDMOS area, so ensuring an accurate and fast temperature detection.
16/41 DocID026995 Rev 1
