Data Sheet

Block diagram and pin description VNH5019A-E
8/37 Doc ID 15701 Rev 9
Charge pump
Provides the voltage necessary to drive the gate of the external
PowerMOS used for the reverse polarity protection
Fault detection
Signalizes an abnormal condition of the switch (output
shorted to ground or output shorted to battery) by pulling
down the concerned ENx/DIAGx pin.
Power limitation
Limits the power dissipation of the high-side driver inside
safe range in case of short to ground condition.
1. See Figure 1
Table 3. Block descriptions
(1)
(continued)
Name Description