Texas Instruments DRV814x-Q1EVM, User Manual, Page: 4 / 22

Table 3-1. DRV814x-Q1EVM and DRV824x-Q1EVM Comparison
DRV814x-Q1EVM
• Single half-bridge output in VQFN HotRod™ package
• SPI and Hardware control variants
DRV824x-Q1EVM
• H-bridge/ dual independent half-bridge outputs in VQFN
HotRod™ package
• SPI and Hardware control variants
3.2.1 Common connectors and headers across all EVM variants
Figure 3-1 shows a larger view of the DRV824x-Q1EVM. Because the DRV814x-Q1EVM shares much of the
same design, it will not be covered separately.
The micro-USB connection at the top of the EVM is used for GUI communications, and MCU firmware updates.
Main supply input A supply voltage ranging from +4.5 VDC to +36 VDC from a battery or a DC voltage source is
connected to the large screw thermal block (fused and reverse polarity protection).
Bi-directional brushed-DC motors should be connected to the OUT1 and OUT2 banana jacks. Ground and VM
supply connections are provided as a convenience for high-side or low-side switched loads (e.g., unidirectional
brushed DC motor or solenoid).
Note
VM will have a small voltage drop with respect to the main supply due to the N-channel MOSFET in
the reverse protection circuit.
Evaluation Hardware Overview www.ti.com
4 DRV824x_DRV814x-Q1EVM User’s Guide SLVUC46A – MARCH 2021 – REVISED JULY 2021
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