A3982SLB-T View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A3982SLB-T' PDF : 11 Pages View PDF
A3982
DMOS Stepper Motor Driver with Translator
ELECTRICAL CHARACTERISTICS1 at TA = 25°C, VBB = 35 V (unless otherwise noted)
Characteristics
Output Drivers
Load Supply Voltage Range
Logic Supply Voltage Range
Output On Resistance
Body Diode Forward Voltage
Motor Supply Current
Logic Supply Current
Control Logic
Logic Input Voltage
Logic Input Current
Input Hysteresis
Blank Time
Fixed Off-Time
Reference Input Voltage Range
Reference Input Current
Current Trip-Level Error3
Crossover Dead Time
Protection
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
UVLO Enable Threshold
UVLO Hysteresis
Symbol
Test Conditions
Min. Typ.2 Max. Units
VBB
VDD
RDSON
VF
IBB
IDD
Operating
Operating
Source Driver, IOUT = –1.5 A
Sink Driver, IOUT = 1.5 A
Source Diode, IF = –1.5 A
Sink Diode, IF = 1.5 A
fPWM < 50 kHz
Operating, outputs disabled
fPWM < 50 kHz
Outputs off
8
–
35
V
3.0
–
5.5
V
–
0.370 0.460
Ω
–
0.330 0.380
Ω
–
–
1.2
V
–
–
1.2
V
–
–
4
mA
–
–
2
mA
–
–
8
mA
–
–
5
mA
VIN(1)
VDD 0.7
–
–
V
VIN(0)
IIN(1)
IIN(0)
VIN = VDD 0.7
VIN = VDD 0.3
–
–
VDD 0.3
V
–20
<1.0
20
μA
–20
<1.0
20
μA
VHYS(IN)
150
300
500
mV
tBLANK
0.7
1
1.3
μs
OSC > 3 V
tOFF
ROSC = 25 kΩ
20
30
40
μs
23
30
37
μs
VREF
0
–
4
V
IREF
–3
0
3
μA
errI
VREF = 2 V, %ITripMAX = 70.71%
VREF = 2 V, %ITripMAX = 100.00%
–
–
–
±5
%
–
±5
%
tDT
100
475
800
ns
TJ
TJHYS
UVLO
UVHYS
VDD rising
–
165
–
°C
–
15
–
°C
2.35
2.7
3
V
0.05
0.10
–
V
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 ITripMAX.
Allegro MicroSystems, LLC
4
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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