DRM33395 Datasheet, PDF (25/44 Pages) Motorola, Inc – ANALOG ICs 33395 EVALUATION MOTOR BOARD DESIGNER REFERENCE MANUALv

Freescale Semiconductor, Inc.
Pin Descriptions
Signal Descriptions
Table 3-4 Gate Driver PWM Signal Selection
SW1 Rotary Switch on
140A01 board
Position 1 (1PWM pin)
Position 2 (2+ pin)
Position 3 (3- pin)
Representation on
140A02 board
JP5 jumper uni position
JP5 jumper + position
SW1 button press
(RESET)
Comment
Controller board gives 1
PWM signal
High state logic 1 (6 PWM
signals, default)
Resets drive off status
(temporary)
NOTE:
The gate driver ‘soft reset’ is necessary to leave the drive off status that
is not entered by default. When a fault arises or a parallel cable that is
connected between a computer and the controller board introduces an
obscure voltage from this computer into the motor system, the reset
assures correct driver re-initialization. The soft reset is activated either
by toggling the SW1 rotary switch from position 3 to 2 (140A01 board
version), or by resetting with the SW1 push button (140A02 version).
Then the board generates a resetting pulse on the driver PWM_IN pin.
33395 Evaluation Motor Board
DRM33395 Designer Reference Manual
MOTOROLA
Pin Descriptions
23
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