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A3982 Datasheet(PDF) 4 Page - Allegro MicroSystems

Part # A3982
Description  DMOS Stepper Motor Driver with Translator
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3982 Datasheet(HTML) 4 Page - Allegro MicroSystems

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DMOS Stepper Motor Driver with Translator
A3982
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ELECTRICAL CHARACTERISTICS1 at TA = 25°C, VBB = 35 V (unless otherwise noted)
1Negative current is defined as coming out of (sourcing from) the specified device pin.
2Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for
individual units, within the specified maximum and minimum limits.
3errI = (ITrip – IProg) ⁄ IProg, where IProg = %ITripMAX
×I
TripMAX.
Characteristics
Symbol
Test Conditions
Min.
Typ.2
Max.
Units
Output Drivers
Load Supply Voltage Range
VBB
Operating
8
35
V
Logic Supply Voltage Range
VDD
Operating
3.0
5.5
V
Output On Resistance
RDSON
Source Driver, IOUT = –1.5 A
0.370
0.460
Ω
Sink Driver, IOUT = 1.5 A
0.330
0.380
Ω
Body Diode Forward Voltage
VF
Source Diode, IF = –1.5 A
1.2
V
Sink Diode, IF = 1.5 A
1.2
V
Motor Supply Current
IBB
fPWM < 50 kHz
4
mA
Operating, outputs disabled
2
mA
Logic Supply Current
IDD
fPWM < 50 kHz
8
mA
Outputs off
5
mA
Control Logic
Logic Input Voltage
VIN(1)
VDD×0.7
––
V
VIN(0)
––
VDD×0.3
V
Logic Input Current
IIN(1)
VIN = VDD×0.7
–20
<1.0
20
μA
IIN(0)
VIN = VDD×0.3
–20
<1.0
20
μA
Input Hysteresis
VHYS(IN)
150
300
500
mV
Blank Time
tBLANK
0.7
1
1.3
μs
Fixed Off-Time
tOFF
OSC > 3 V
20
30
40
μs
ROSC = 25 kΩ
23
30
37
μs
Reference Input Voltage Range
VREF
0–4
V
Reference Input Current
IREF
–3
0
3
μA
Current Trip-Level Error3
errI
VREF = 2 V, %ITripMAX = 70.71%
±5
%
VREF = 2 V, %ITripMAX = 100.00%
±5
%
Crossover Dead Time
tDT
100
475
800
ns
Protection
Thermal Shutdown Temperature
TJ
165
°C
Thermal Shutdown Hysteresis
TJHYS
–15–°C
UVLO Enable Threshold
UVLO
VDD rising
2.35
2.7
3
V
UVLO Hysteresis
UVHYS
0.05
0.10
V


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