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| DRV8701_15 Datasheet, PDF (23/42 Pages) Texas Instruments – DRV8701 Brushed DC Motor Full-Bridge Gate Driver | |||
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www.ti.com
DRV8701
SLVSCX5B â MARCH 2015 â REVISED JULY 2015
7.3.12 Gate Drive Clamp
A clamping structure limits the gate drive output voltage to VGS CLAMP to protect the power FETs from damage.
The positive voltage clamp is realized using a series of diodes. The negative voltage clamp uses the body diodes
of the internal gate driver FET.
VGHS
VM
IREVERSE
GHx
Pre-Drive
VGLS
VGS > VCLAMP
SHx
ICLAMP
VGS negative
GLx
GND
RSENSE
Figure 31. Gate Drive Clamp Diagram
Copyright © 2015, Texas Instruments Incorporated
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