Motorola M68HC08, Reference Manual

Page: 71 / 168

Hardware Design
Low-Voltage Evaluation Motor Hardware Set Components
DRM028 — Rev 0 Designer Reference Manual
MOTOROLA Hardware Design 71
4.5.1.1 Electrical Characteristics of the EVM Motor Board
The electrical characteristics in Table 4-4 apply to operation at 25
°
C and
a 12-Vdc power supply voltage.
4.5.2 3-phase Low Voltage EVM BLDC Motor
The EVM Motor Board is shipped with an MCG IB23810-H1 brushless
dc motor. Motor-brake specifications are listed in
Table 2-3 , Section 2.
Other detailed motor characteristics are in Table 4-5 this section. They
apply to operation at 25
°
C.
Table 4-4. Electrical Characteristics of the EVM Motor Board
Characteristic Symbol Min Typ Max Units
Power Supply Voltage Vdc 10 12 16 V
Quiescent Current
I
CC
— 50 — mA
Min Logic 1 Input Voltage
V
IH
2.4 — — V
Max Logic 0 Input Voltage
V
IL
— — 0.8 V
Input Resistance
R
In
— 10 — k
Ω
Analog Output Range
V
Out
0 — 3.3 V
Bus Current Sense Voltage
I
Sense
— 412 — mV/A
Bus Voltage Sense Voltage
V
Bus
— 206 — mV/V
Power MOSFET On Resistance
R
DS(On)
— 32 40 M
Ω
RMS Output Current
I
M
— — 6 A
Total Power Dissipation
P
diss
— — 5 W
Table 4-5. Characteristics of the BLDC motor
Characteristic Symbol Min Typ Max Units
Terminal Voltage
V
t
— — 60 V
Speed @ V
t
— 5000 — RPM
Torque Constant
K
t
— 0.08 — Nm/A
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Freescale Semiconductor, Inc.
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