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VNH5180A-E Datasheet(PDF) 5 Page - STMicroelectronics |
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VNH5180A-E Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 31 page VNH5180A-E Block diagram and pin description Doc ID 17074 Rev 5 5/31 1 Block diagram and pin description Figure 1. Block diagram Table 2. Block description Name Description Logic control Allows the turn-on and the turn-off of the high-side and the low-side switches according to the truth table. Undervoltage Shuts down the device for battery voltage lower than 5V. High-side and low-side clamp voltage Protect the high-side and the low-side switches from the high voltage on the battery line. High-side and low-side driver Drive the gate of the concerned switch to allow a proper RDS(on) for the leg of the bridge. Current limitation Limits the motor current in case of short circuit. High-side and low-side overtemperature protection In case of short-circuit with the increase of the junction temperature, it shuts down the concerned driver to prevent degradation and to protect the die. Low-side overload detector Detects when low side current exceeds shutdown current and latches off the concerned Low side. Fault detection Signalizes the abnormal behaviour 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. |
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