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A3976 データシートの表示(PDF) - Allegro MicroSystems
部品番号
コンポーネント説明
メーカー
A3976
DUAL FULL BRIDGE PROTECTED MOTOR DRIVER
Allegro MicroSystems
A3976 Datasheet PDF : 5 Pages
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3976 Dual Protected PWM Motor Driver
V
CC
FAULT1
FAULT2
PHASE1
ENABLE1
PHASE2
ENABLE2
Functional Block Diagram
(one of two bridges shown)
Thermal
Shutdown
Over/Under
Voltage
Monitor
Diagnostic Logic
Short to Supply
Monitor
CONTROL
LOGIC
Input Pull Down
Short to Ground
Monitor
V
BB
To Bridge 2
OUT1A
OUT1B
OUT2A
To Bridge 2
OUT2B
GROUND
Input Logic
PHASE
X
0
1
ENABLE
0
1
1
OUTA
Off
Low
High
OUTB
Off
High
Low
Fault Logic
Fault Condition
Thermal Shutdown
Short to Battery or Open Load
Short to Ground
Normal Operation
FAULT1
Low
Low
High
High
FAULT2
Low
High
Low
High
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