Getting to know the hardware
FRDM-HB2000-EVM evaluation board
, Rev. 1.0
NXP Semiconductors
5
3
Getting to know the hardware
3.1
Board overview
The FRDM-HB2000-EVM evaluation kit exercises all the functions of the MC33HB2000 H-Bridge device. The parallel input can be easily
controlled by lab equipment or any MCU with GPIOs. The board can be used in conjunction with a FRDM-KL25Z board connected to a
PC’s USB port. Configure, control, and monitor the status of MC33HB2000 by using the board’s SPI communication capabilities.
3.2
Board features
The FRDM-HB2000-EVM board evaluates the NXP part MC33HB2000, including all functions. The board features the following:
• Built-in reverse battery protection
• Test points allows probing its signals
• Built-in voltage regulator to supply logic level circuitry
• LEDs to indicate the supply status and the direction of the motor
• Low equivalent series resistance (ESR) capacitor to reduce ripple in the power supply
• Transient voltage suppressor to handle system level transients
3.3
Block diagram
The hardware block diagram is shown in
.
Figure 2. Block diagram
MC33HB2000
Power Supply
Reverse
Battery and
Transient
Protection
5V Voltage
Regulator
VPWR
LED
VDD LED
Charge Pump Capacitor
VPWR
CCP
IN1
IN2
ENBL
MOSI
CFB
OUT2
OUT1
FS_B
All Grounds
FS_B LED
FWD LED
REV LED
Load
From
MCU
GPIO
To MCU
ADC input
To MCU
GPIO
Optional 5.0 V Supply to FRDM
Optional 3.3 V Supply from FRDM
DIS
MISO
SCLK
CSB
MCU
SPI
Shunt
Resistor
VDDQ