SK-POWER-3P-LV-MC Fujitsu, SK-POWER-3P-LV-MC Datasheet - Page 12

• Manufacturer Part Number: SK-POWER-3P-LV-MC
• Description: Low Voltage/Motor Control Evaluation Board
• Manufacturer: Fujitsu

Specifications of SK-POWER-3P-LV-MC

• Silicon Manufacturer: Fujitsu
• Silicon Core Number: SK-91470-144PMC1-MC, SK-91480-100PMC-MC
• Kit Application Type: Power Management - Motor Control
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.2 Gate drivers (JP: 1, 2, 6, 7, 10, 11)
JP1, JP2, JP6, JP7, JP10, JP11
The gate drive circuit consists of a drive IC (IR2101) and a bootstrap circuit to
provide the high-side floating gate supply. The bootstrap capacitors are
charged as soon as the corresponding low-side MOSFET is switched on. To
ensure that the high-side MOSFETS are always fully switched on or off, the
bootstrap capacitors have to be frequently recharged. Therefore, 100% duty
cycle is not recommended for the high-side switches for more than some ms,
since the gate voltage might fall and leave the MOSFET in an undefined state.
Jumper
JP10
JP11
JP1
JP2
JP6
JP7
These jumpers connect the PWM pins of the MotorDrive connector X1 to the
on-board gate driver ICs (IC1, IC2, IC3).
Setting
Closed
Closed
Closed
Closed
Closed
Closed
Open
Open
Open
Open
Open
Open
Description
X1 Pin 3 is connected to the PWM1H gate driver input.
X1 Pin 3 is not connected to the on-board gate drivers.
X1 Pin 4 is connected to the PWM1L gate driver input.
X1 Pin 4 is not connected to the on-board gate drivers.
X1 Pin 5 is connected to the PWM2H gate driver input.
X1 Pin 5 is not connected to the on-board gate drivers.
X1 Pin 6 is connected to the PWM2L gate driver input.
X1 Pin 6 is not connected to the on-board gate drivers.
X1 Pin 7 is connected to the PWM3H gate driver input.
X1 Pin 7 is not connected to the on-board gate drivers.
X1 Pin 8 is connected to the PWM3L gate driver input.
X1 Pin 8 is not connected to the on-board gate drivers.
SK-POWER-3P-LV User Guide
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© Fujitsu Microelectronics Europe GmbH