NXP Semiconductors

UM11144

FRDM-HB2002ESEVM evaluation board

UM11144

All information provided in this document is subject to legal disclaimers.

© NXP B.V. 2018. All rights reserved.

User guide

Rev. 1.0 — 13 September 2018

21 / 27

Input Control Mode Select mode of operation (full-bridge or half-bridge) with

MODE

bit. Write the device configuration register upon edit to correctly

interpret input signals.

• H-Bridge (default) operates the device in full-bridge mode

• Half-Bridge operates the device in half-bridge mode

This dropdown selection affects the PWM waveforms generated by

the microcontroller.

Current Limit (A)

Select from four current limit options using the

ILIM0 and ILIM1

bits. Write the device configuration register upon edit.

Slew Rate (V/μs)

Select from eight slew rate settings using the

SR0, SR1, and SR2

bits. Write the device configuration register upon edit.

Standby Open

Load Test

Enable openload test in Standby mode, using

CL bit. Write the

device configuration register upon edit.

• No (default) sets CL = 0 and disables the test

• Yes sets CL = 1 and executes openload test on next Standby

state

Openload standby test is available in full-bridge mode only.

Over Voltage

Protection

Configure response to overvoltage condition using

DOV bit. Write

the fault status mask register upon edit.

• Enabled (default) sets DOV = 0; during overvoltage, the OV

warning bit is set and the outputs are in high-side recirculation to

protect the system.

• Disabled sets DOV = 1; during overvoltage only the OV warning

bit is set.

Overvoltage protection is available in full-bridge mode only.

Additional functionality is available by setting configuration and status registers over SPI.

For a full description of this functionality, see MC33HB2002 data sheet.