A3957SA View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A3957SA' PDF : 16 Pages View PDF
3957
FULL-BRIDGE PWM
MICROSTEPPING
MOTOR DRIVER
Typical Operating Characteristics
Source Driver Saturation Voltage
1.5
1.25
1.0
0.75
0.5
0.25
0
0
SOURCE DRIVER
TJ = +25°C
TJ = +70°C
TJ = +85°C
TJ = +125°C
0.25
0.5
0.75
1.0
OUTPUT CURRENT IN AMPERES
1.25
1.5
Dwg. GP-064-2
Satlington™ Sink Driver Saturation Voltage
1.5
1.25
SINK DRIVER
TJ = +25°C
TJ = +70°C
TJ = +85°C
1.0
TJ = +125°C
0.75
0.5
0.25
0
0
0.25
0.5
0.75
1.0
1.25
1.5
OUTPUT CURRENT IN AMPERES
Dwg. GP-064-3
1.5
1.25
1.0
0.75
0.5
0.25
0
0
Clamp Diode Forward Voltage
SINK DIODE
TJ = +25°C
TJ = +70°C
TJ = +85°C
TJ = +125°C
0.25
0.5
0.75
1.0
FORWARD CURRENT IN AMPERES
1.25
1.5
Dwg. GD-003-1
Flyback Diode Forward Voltage
1.5
1.25
1.0
0.75
0.5
0.25
0
0
FLYBACK DIODE
TJ = +25°C
TJ = +70°C
TJ = +85°C
TJ = +125°C
0.25
0.5
0.75
1.0
FORWARD CURRENT IN AMPERES
1.25
1.5
Dwg. GD-003-2
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