STEVAL-IHM012V1 STMicroelectronics, STEVAL-IHM012V1 Datasheet - Page 10

• Manufacturer Part Number: STEVAL-IHM012V1
• Description: EVAL BRD POWER MOSFET/8PIN MCU
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of STEVAL-IHM012V1

• Design Resources: STEVAL-IHM012V1 Gerber Files STEVAL-IHM012V1 Schematic STEVAL-IHM012V1 Bill of Materials
• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST7FLITEUS5
• Primary Attributes: Brush DC Motors
• Secondary Attributes: DC Chopper
• Product: Power Management Modules
• Kit Application Type: Power Management - Motor Control
• Application Sub Type: BLDC Motor
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ST7FLiteUS5
• Other names: 497-5861

Application design procedure
10/18
Where
T
R
The total power dissipation will be:
Equation 8
In the evaluation board the available copper area on PCB for heat dissipation is almost
400 mm
Equation 9
Figure 4.
The total thermal resistance is:
Equation 10
Thus
Equation 11
In the worst case we can take T
The above consideration has to be done if the final designer chooses to change the Power
MOSFET to increase current capabilities.
A
TH_TOT
= Ambient Temperature
2
= Total thermal resistance
. This is shown in
R
THJ_PCB
R
TH TOT
T
PD
–
J
versus drain pad area for DPACK
–
TOT
T
Figure
A
=
=
=
R
R
A
R
TH TOT
THJ CASE
= 40 °C and T
DS on
4:
–
(
–
R
)
THJ PCB
•
•
I
PD
LOAD
–
+
R
TOT
THJ PCB
2
J
≅
=
=
= 80 is lower T
–
50° C
0.012
52.5
=
/
•
W
•
2.5
0.77
8 ( )
+
2
=
=
50
40.4
0.77W
JMAX
=
52.5° C
° C
= 175 °C.
/W
UM0291