P A G E 7
CLICKER 4 Inverter Shield U S E R M A N U A L
The DRV8323 (1) is an integrated gate driver for three-
phase motor drive applications. These devices integrate
three independent half-bridge gate drivers, charge
pump, and linear regulator for the supply voltages of the
high-side and low-side gate drivers, and significantly
decrease system component count, cost, and complexity.
A standard serial peripheral interface (SPI) provides a
simple method for configuring the various device settings
and reading fault diagnostic information through an MCU
on the Clicker 4 board.
3. Integrated Driver
INTEGRATED DRIVER
The DRV8323 integrates three bidirectional current sense
amplifiers for monitoring the current level through each of
the external half-bridges using a low-side shunt resistor. The
gain setting of the current sense amplifier can be adjusted
through the SPI or hardware interface. The SPI method
provides additional flexibility to adjust the output bias point.
Several on-board jumpers are available to enable either
single or three-phase current monitoring. To enable single
phase measurement connect jumpers J1, J2, and J3,
for three-phase measurement only jumper J4 should be
connected. Current monitoring signals are also connected
to side headers for external measurement, appropriate SMD
jumpers configuration is needed to switch between on-board
and external measurement.
Several indication LEDs are available on board, UH (LD4), VH
(LD5), WH (LD6) LEDs (Blue) are used to indicate the state of
High-side gate driver control inputs. FLT1 LED (Red) is a fault
indicator, this LED turns on during a fault condition.
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