A3981KLPTR-T Allegro Microsystems Inc, A3981KLPTR-T Datasheet - Page 5

• Manufacturer Part Number: A3981KLPTR-T
• Description: AUTOMOTIVE PROGRAMMABLE STEPPER DRVR
• Manufacturer: Allegro Microsystems Inc

Specifications of A3981KLPTR-T

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Voltage - Load: 7 V ~ 28 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A3981
ELECTRICAL CHARACTERISTICS
Continued on the next page…
Current Control (continued)
Reference Input Current
Maximum Sense Voltage
Current Trip Point Error
Logic Input And Output – DC Parameters
Input Low Voltage
Input High Voltage
Input Hysteresis
Input Current (Except RESETn)
Input Pull-Down Resistor (RESETn)
Output Low Voltage
Output High Voltage
Output Leakage (SDO)
Logic Input And Output – Dynamic Parameters
Reset Pulse Width
Reset Shutdown Width
Input Pulse Filter Time (STEP, DIR)
Clock High Time
Clock Low Time
Strobe Lead Time
Strobe Lag Time
Strobe High Time
Data Out Enable Time
Data Out Disable Time
Data Out Valid Time from Clock Falling
Data Out Hold Time from Clock Falling
Data In Set-Up Time to Clock Rising
Data In Hold Time From Clock Rising
STEP Rising to STRn Rising
Setup Time
STEP Rising from STRn Rising
Hold Time
Step High Time
Step Low Time
Setup Time Control Input Change
to STEP
Hold Time Control Input Change
from STEP
Wake-Up from RESET
Characteristics
5
Symbol
V
t
t
t
t
t
t
t
t
t
t
E
V
t
t
t
SDOD
SDOH
I
R
V
t
t
SCKH
STRH
SDOE
SDOV
t
t
STPH
V
SCKL
STLD
STLG
STPL
SMAX
V
t
SDIS
SDIH
V
RSD
SPH
t
t
REF
RST
SPS
1,2
I
PIN
I
t
ITrip
Ihys
SU
EN
IN
OH
PD
OL
O
H
IH
IL
(continued) Valid at T
V
0 V < V
I
I
0 V < V
A in figure 1
B in figure 1
C in figure 1
D in figure 1
E in figure 1
F in figure 1
G in figure 1
H in figure 1
I in figure 1
J in figure 1
K in figure 1
L in figure 1, only when D15 = 1 and D14 = 0
M in figure 1, only when D15 = 1 and D14 = 0
MS1, MS2, DIR
MS1, MS2, DIR
OL
OL
REF
= 2 mA
= –2 mA
Automotive, Programmable Stepper Driver
= 2 V, MxI0 = MxI1 = 1
IN
O
< V
< V
DD
DD
, STRn = 1
Test Conditions
J
= –40°C to 150°C, V
BB
= 7 to 28 V, V
0.7 × V
V
DD
Min.
250
300
100
300
200
200
0.2
–3
–1
–1
10
50
50
30
30
15
10
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–
–
–
–
–
–
–
–
–
5
1
1
–
–0.4
DD
DD
= 3.3 V; unless otherwise noted
V
DD
Typ.
125
500
0.2
50
35
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–0.2
0.3 × V
Max.
0.4
4.5
±5
40
30
40
3
–
–
–
1
–
–
1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1
DD
Unit
mV
mV
kΩ
ms
μA
μA
μA
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
ns
ns
%
V
V
V
V
5