A3933SEQ データシートの表示（PDF） - Allegro MicroSystems
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A3933SEQ Datasheet PDF : 12 Pages
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3933
THREE-PHASE POWER
MOSFET CONTROLLER
Commutation Truth Table
Logic Inputs
Driver Outputs
H1
H2
H3
DIR GLA GLB GLC GHA GHB GHC SA
SB
SC
H
L
H
H
L
L
H
H
L
L
H
Z
L
H
L
L
H
L
L
H
L
H
L
Z
H
L
H
H
L
H
H
L
L
L
H
L
L
H
Z
L
H
L
H
H
L
L
L
L
H
L
Z
H
L
H
H
H
L
H
L
L
L
H
Z
L
H
L
L
H
H
L
H
L
H
L
L
H
L
Z
H
L
H
L
H
L
L
L
L
H
L
Z
H
H
L
L
L
L
H
L
L
L
H
Z
L
H
H
H
L
L
L
H
L
H
L
L
H
L
Z
L
H
L
L
L
L
H
H
L
L
H
Z
L
L
H
H
L
L
L
H
L
H
L
Z
H
L
L
L
H
L
H
L
L
L
H
L
L
H
Z
MODE PWM
L
L
L
H
H
L
H
H
X
X
RESET
L
L
L
L
H
Mode
Fast decay
Fast decay
Slow decay
Slow decay
Coast
Input Logic
Operation
PWM chop mode, current decay
Peak current limit, selected drivers ON
PWM chop mode. current decay
Peak current limit, selected drivers ON
All gate drive outputs OFF, clear fault logic
BRAKE BRKSEL
L
L
L
H
H
L
H
H
Brake Control
Normal Operation
Normal run mode
Normal run mode
Dynamic brake, all sink gate drives ON
Dynamic brake, all sink gate drives ON
Under Voltage or Power Loss Condition
Coast, all gate drive outputs OFF
Dynamic brake, all sink gate drives ON
Coast, all gate drive outputs OFF
Dynamic brake, all sink gate drives ON
L = Low Level, H = High Level, X = Don’t Care, Z = High Impedance
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