Table 7-1 lists the recommended values of the external components for the
driver.
Table 7-1 MCF8329HS-Q1 External Components
| COMPONENTS |
PIN 1 |
PIN 2 |
RECOMMENDED |
| CPVDD1 |
PVDD |
GND |
X7R, 0.1µF, >2x PVDD-rated |
| CPVDD2 |
PVDD |
GND |
≥ 10µF, >2x PVDD-rated |
| CCP |
CPH |
CPL |
X7R, 470nF, PVDD-rated |
| CAVDD |
AVDD |
AGND |
X7R, 1µF or 2.2µF, 10V |
| CGVDD |
GVDD |
GND |
X7R, ≥10uF, 30V |
| CDVDD |
DVDD |
DGND |
X7R, 1µF, 10V |
| CBSTx |
BSTx |
SHx |
X7R, 1µF, 25V |
| RnFAULT |
1.8 to 5 V Supply |
nFAULT |
5.1kΩ, Pullup resistor |
| RFG |
1.8 to 5 V Supply |
FG |
5.1kΩ, Pullup resistor |
| RSDA |
1.8 to 5 V Supply |
SDA |
5.1kΩ, Pullup resistor |
| RSCL |
1.8 to 5 V Supply |
SCL |
5.1kΩ, Pullup resistor |
Note:
- AVDD and DVDD capacitors
should have an effective capacitance between 0.5μF and 2.8μF after operating
voltage (AVDD or DVDD) and temperature derating.
- The internal pull-up resistor
(to AVDD) for both FG and nFAULT pins can be enabled by configuring
PULLUP_ENABLE to 1b. Any change to this bit needs to be written to EEPROM
followed by a power recycle to take effect. When PULLUP_ENABLE is set to 1b,
no external pull-up resistor should be provided.
- SPEED/WAKE pin has an
internal pull-down resistor of 1-MΩ. In analog speed input mode, a suitable
R-C filter can be added externally to reduce noise. In PWM speed input mode,
SPEED_PIN_GLITCH_FILTER can be appropriately configured for glitch
rejection.