A3989SEVTR-T Allegro Microsystems Inc, A3989SEVTR-T Datasheet - Page 4

• Manufacturer Part Number: A3989SEVTR-T
• Description: IC, MOTOR DRIVER, STEPPER, 1.2A, QFN-36
• Manufacturer: Allegro Microsystems Inc

Specifications of A3989SEVTR-T

• Motor Type: Stepper
• No. Of Outputs: 3
• Output Current: 1.2A
• Output Voltage: 36V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: QFN
• No. Of Pins: 36
• Applications: DC Motor Driver, Stepper Motor Driver
• Number Of Outputs: 2
• Voltage - Load: 8 V ~ 36 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-VFQFN Exposed Pad
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 620-1183-2

A3989
ELECTRICAL CHARACTERISTICS
Load Supply Voltage Range
Logic Supply Voltage Range
VDD Supply Current
Output On Resistance (dc motor driver)
Output On Resistance (stepper motor
driver)
V
Output Leakage
VBB Supply Current
Control Logic
Logic Input Voltage
Logic Input Current
Input Hysteresis
Propagation Delay Times
Crossover Delay
Blank Time (dc motor driver)
Blank Time (stepper motor driver)
VREFx Pin Input Voltage Range
VREFx Pin Reference Input Current
Current Trip-Level Error
Protection Circuits
VBB UVLO Threshold
VBB Hysteresis
VDD UVLO Threshold
VDD Hysteresis
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
1
2
vidual units, within the specified maximum and minimum limits.
3
DC Control Logic
* To prevent reversal of current during fast decay SR – the outputs will go to the high impedance state as the current gets near zero.
For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for indi-
V
f
, Outputs
ERR
PHASE
1
1
0
0
X
1
0
= [(V
REF
Characteristics
/3) – V
ENABLE
1
1
1
1
0
0
0
SENSE
3
] / (V
MODE
REF
1
0
1
0
1
0
0
/3).
1
, valid at T
Bipolar Stepper and High Current DC Motor Driver
OUTA
V
V
R
V
V
Symbol
R
UV(VDD)hys
T
H
H
H
t
UV(VBB)hys
L
L
L
L
t
BLANKdc
BLANKst
DS(on)dc
V
UV(VBB)
UV(VDD)
T
JTSDhys
DS(on)st
V
V
V
t
V
I
V
I
V
A
I
COD
DSS
I
REF
JTSD
IN(1)
IN(0)
I
t
REFx
ERR
DD
BB
pd
DD
IN
hys
BB
= 25 °C, V
OUTB
H
H
H
L
L
L
L
Operating
Operating
Source driver, I
Sink driver, I
Source driver, I
Sink driver, I
I
Outputs, V
I
DC = 50%
V
PWM change to source on
PWM change to source off
PWM change to sink on
PWM change to sink off
Operating
V
V
V
V
V
V
OUT
OUT
BB
IN
REF
REF
REF
REF
BB
DD
= 0 to 5 V
rising
= 36 V, unless otherwise noted
= 0 mA, outputs on, PWM = 50 kHz,
rising
= 1.2 A
= 1.5
= 1.5, phase current = 100%
= 1.5, phase current = 67%
= 1.5, phase current = 33%
Forward (slow decay SR)
Forward (fast decay SR)
Reverse (slow decay SR)
Reverse (fast decay SR)
Brake (slow decay SR)
Fast decay SR*
Fast decay SR*
OUT
OUT
OUT
Test Conditions
= 0 to V
OUT
OUT
= 1.2 A, T J = 25°C
= 1.2 A, T J = 25°C
= –1.2 A, T J = 25°C
= –1.2 A, T J = 25°C
BB
Function
0.7×V
Min.
2.65
–20
–20
150
350
350
300
–15
400
155
8.0
3.0
2.5
0.7
0.0
7.3
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
35
35
–5
–5
75
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–
–
–
–
–
–
–
–
–
–
DD
Typ.
<1.0
350
350
700
700
300
550
550
425
500
105
165
3.2
7.6
2.8
15
–
–
7
–
–
–
–
–
–
–
1
–
–
–
–
–
2
0.3×V
Max.
1000
1000
1000
2.95
450
450
800
800
500
300
250
600
125
175
5.5
1.2
1.3
1.5
7.9
36
10
20
20
±1
15
8
–
4
5
5
–
DD
Units
mΩ
mΩ
mΩ
mΩ
mV
mV
mV
mA
mA
μA
μA
μA
ns
ns
ns
ns
ns
μs
μs
°C
°C
%
%
%
V
V
V
V
V
V
V
V
4