NXP Semiconductors SAFE ASSURE FRDMGD3100HBIEVM, Руководство пользователя, Страница: 17 / 35

NXP Semiconductors
UM11134
FRDMGD3100HBIEVM half-bridge evaluation board
UM11134 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User guide Rev. 3 — 10 February 2020
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Figure 10. Freedom Development Platform
4.6 Logic translator board
The FRDMGD3100HBIEVM includes a logic translator board, which provides simple
isolation and is capable of level-shifting communication signals between the MCU and
the GD3100 driver board. The driver board is exposed to high voltage, and may require
3.3 V or 5.0 V logic, necessitating an interface board.
Various signals, like the SPI communication, interrupt, fail-safe controls, and PWM pass
through the translator board. The translator board provides a configurable output voltage
(3.3 V or 5.0 V) going out to the GD3100 driver board.
The translator board also provides the choice of using PWM signals from the MCU,
or wiring in an external control from a function generator. Jumper configurations are
explained in Figure 11 and Table 7 . Test points are reviewed in Table 8 .
Figure 11. Logic translator board