A4989SLDTR-T Allegro Microsystems Inc, A4989SLDTR-T Datasheet - Page 5

• Manufacturer Part Number: A4989SLDTR-T
• Description: DUAL FULL BRDG MOSFET DRVR W/MICROSTEP TRANS
• Manufacturer: Allegro Microsystems Inc

Specifications of A4989SLDTR-T

• Applications: Stepper Motor Controller, 2-Phase
• Number Of Outputs: 1
• Voltage - Load: 12 V ~ 50 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-TFSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1389-2

A4989
THERMAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (continued) at T
Current Control
Blank Time
Fixed Off-Time
Reference Input Voltage
Internal Reference Voltage
Current Trip Point Error
Reference Input Current
Oscillator Frequency
Protection
VREG Undervoltage Lockout
VREG Undervoltage Lockout
Hysteresis
VDD Undervoltage Lockout
VDD Undervoltage Lockout
Hysteresis
Overtemperature Shut Down
Overtemperature Shut Down
Hysteresis
Control Timing
STEP Low Duration
STEP High Duration
Setup Duration
Hold Duration
Wake Time Duration
1
2
3
scale (100%) current: E
Package Thermal Resistance
*Additional thermal information available on Allegro website.
For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
A RESET pulse of this duration will reset the translator to the Home position without entering Sleep mode.
Current Trip Point Error is the difference between actual current trip point and the target current trip point, referred to full
Characteristics
Characteristic
3
ITRIP
1
= 100 × (I
V
V
Symbol
V
REGUVHys
T
V
V
t
t
DDUVHys
TRIPActual
E
t
t
TSDHys
BLANK
V
STEPH
REGUV
T
STEPL
f
WAKE
Symbol
t
I
REFInt
DDUV
OSC
t
OFF
ITRIP
REF
TSD
REF
SU
t
H
R
θJA
– I
R
R
20 kΩ to V
V
R
Decreasing V
Decreasing V
Temperature increasing
Recovery = T
Input change to STEP pulse;
MS1, MS2, DIR
Input change from STEP pulse;
MS1, MS2, DIR
OSC
OSC
REF
OSC
TRIPTarget
4-layer PCB, based on JEDEC standard
1-layer PCB with copper limited to solder pads
= 2 V
= 10 kΩ
= 10 kΩ,
= 10 kΩ, , SR= High
A
= 25°C, V
) / I
DD
Dual Full-Bridge MOSFET Driver
Test Conditions
TSD
REG
DD
FullScale %
DD
– T
= 5 V, V
TSDHys
with Microstepping Translator
Test Conditions*
BB
= 12 to 50V, unless noted otherwise
18.12
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
2.45
100
200
200
1.2
0.8
1.9
3.2
7.5
–3
50
–
–
–
1
1
1
Typ.
200
100
165
1.5
2.0
2.7
15
–
–
–
0
4
8
–
–
–
–
–
23.16
Max.
Value Units
2.95
1.8
2.1
4.8
8.5
127
±5
51
2
3
–
–
–
–
–
–
–
–
–
Units
ºC/W
ºC/W
MHz
mV
mV
ms
μA
μs
μs
ºC
ºC
μs
μs
ns
ns
%
V
V
V
V
5