Freescale Semiconductor KIT33926PNBEVBE, Руководство пользователя

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KT33926UG, Rev. 2.0
8 Freescale Semiconductor
Evaluation Board Hardware Description
11 Evaluation Board Hardware Description
This EVB consists of a 33926 H-Bridge, a 33810 PWM Driver (IID) circuit, a USB to SPI Dongle interface,
power conditioning circuitry, and a set of seven Input Select Jumpers. All +5.0 volt VDD power required
by the EVB is obtained via the USB/SPI Dongle interface. The Hardware Block Diagram is shown below:
Figure 4. 33926 EVB Block Diagram
11.1 LED Display
Several LED’s are provided as visual output devices for the MC33926 EVB board. A list of the LED
devices is shown below:
1.VDD LED - Indicates when a +5.0 Volt supply is connected
2.VPWR LED - Indicates when +12 Volt supply is connected
3.Fault LED - Illuminates when the MC33926 detects a fault
4.Output LED - Red/Green LED that indicates which direction the current is flowing in the legs of the H-Bridge.
Reverse Battery
And Transient
Protection
MC33810
33810
OUT0 –
OUT3
Screw
Connectors
MC 33926
H-Bridge
MC33926 Evaluation Board Block Diagram
4
4
2
16 conductor Flat Cable
SO, SI,
CSB,
CLK
4
SPI
Port
DIN0-3
GIN0-3
VPWR
LED
8 parallel control
lines
OUT0-3
GD1-3
VBat
2
VPWR,
VDD
RED/GREEN
OUTPUT LED
TO
USB/SPI
DONGLE
VDD
LED
H-BRIDGE
OUT1 OUT2
Screw
Connectors
VDD
`
EN
DISABLE_1
DISABLE_2B
INPUT 1
INPUT 2
INVERT
SLEW
FAULT
LED
3 parallel control lines
JUMPERS