A3983 Datasheet, PDF (3/13 Pages) Allegro MicroSystems – DMOS Microstepping Driver with Translator

A3983
DMOS Microstepping Driver with Translator
ELECTRICAL CHARACTERISTICS¹ at T_A = 25°C, V_BB = 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
Microstep Select 2
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.
Operating
8
V_BB
During Sleep Mode
0
V_DD
Operating
3.0
R_DSON
Source Driver, I_OUT = –1.5 A
Sink Driver, I_OUT = 1.5 A
–
–
V_F
Source Diode, I_F = –1.5 A
Sink Diode, I_F = 1.5 A
–
–
f_PWM < 50 kHz
–
I_BB
Operating, outputs disabled
–
Sleep Mode
–
f_PWM < 50 kHz
–
I_DD
Outputs off
–
Sleep Mode
–
V_IN(1)
V_IN(0)
I_IN(1)
I_IN(0)
MS2
V_HYS(IN)
t_BLANK
t_OFF
V_REF
I_REF
err_I
t_DT
× V_IN = V_DD 0.7
× V_IN = V_DD 0.3
OSC > 3 V
R_OSC = 25 kΩ
V_REF = 2 V, %I_TripMAX = 38.27%
V_REF = 2 V, %I_TripMAX = 70.71%
V_REF = 2 V, %I_TripMAX = 100.00%
× V_DD 0.7
–
–20
–20
–
150
0.7
20
23
0
–3
–
–
–
100
T_J
T_JHYS
UV_LO
UV_HYS
V_DD rising
–
–
2.35
0.05
Typ.²
–
–
–
0.350
0.300
–
–
–
–
–
–
–
–
–
–
<1.0
<1.0
100
300
1
30
30
–
0
–
–
–
475
165
15
2.7
0.10
Max.
35
35
5.5
0.450
0.370
1.2
1.2
4
2
10
8
5
10
–
× V_DD 0.3
20
20
–
500
1.3
40
37
4
3
±15
±5
±5
800
–
–
3
–
Units
V
V
V
Ω
Ω
V
V
mA
mA
μA
mA
mA
μA
V
V
μA
μA
kΩ
mV
μs
μs
μs
V
μA
%
%
%
ns
°C
°C
V
V
1_{Negative current is defined as coming out of (sourcing from) the specified device pin.}
2_{Typical 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.
× ³err_I = (I_Trip – I_Prog ) ⁄ I_Prog , where I_Prog = %I_TripMAX I_TripMAX.
26184.29A
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com