Motorola M68HC08 manual Electrical Characteristics of the EVM Motor Board

Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.

Hardware Design

Low-Voltage Evaluation Motor Hardware Set Components

4.5.1.1 Electrical Characteristics of the EVM Motor Board

The electrical characteristics in Table 4-4apply to operation at 25°C and a 12-Vdc power supply voltage.

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	ICC	—	50	—	mA
Min Logic 1 Input Voltage	VIH	2.4	—	—	V
Max Logic 0 Input Voltage	VIL	—	—	0.8	V
Input Resistance	RIn	—	10	—	kΩ
Analog Output Range	VOut	0	—	3.3	V
Bus Current Sense Voltage	ISense	—	412	—	mV/A
Bus Voltage Sense Voltage	VBus	—	206	—	mV/V
Power MOSFET On Resistance	RDS(On)	—	32	40	MΩ
RMS Output Current	IM	—	—	6	A
Total Power Dissipation	Pdiss	—	—	5	W

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 4-5this section. They apply to operation at 25°C.

Table 4-5. Characteristics of the BLDC motor

	Characteristic		Symbol	Min	Typ	Max	Units
	Terminal Voltage		Vt	—	—	60	V
	Speed @ Vt			—	5000	—	RPM
	Torque Constant		Kt	—	0.08	—	Nm/A
DRM028 — Rev 0					Designer Reference Manual
MOTOROLA		Hardware Design					71

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