A4985SESTR-T Allegro Microsystems Inc, A4985SESTR-T Datasheet - Page 2
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A4985SESTR-T
Manufacturer Part Number
A4985SESTR-T
Description
IC STEPPER MOTOR DRIVER 24QFN
Manufacturer
Allegro Microsystems Inc
Datasheet
1.A4985SLPTR-T.pdf
(22 pages)
Specifications of A4985SESTR-T
Applications
Stepper Motor Driver, 2 Phase
Number Of Outputs
1
Current - Output
*
Voltage - Load
8 V ~ 35 V
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-20°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-WFQFN Exposed Pad
Motor Type
Stepper
No. Of Outputs
2
Output Current
1A
Output Voltage
35V
Supply Voltage Range
3V To 5.5V
Driver Case Style
QFN
No. Of Pins
24
Operating Temperature Range
-20°C To +85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
620-1374 - Board Eval Motor Control A4985
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
A4985SESTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
A4985
Description (continued)
Internal synchronous rectification control circuitry is provided
to improve power dissipation during PWM operation. Internal
circuit protection includes: thermal shutdown with hysteresis,
undervoltage lockout (UVLO), and crossover-current protection.
Special power-on sequencing is not required.
Absolute Maximum Ratings
Selection Guide
A4985SESTR-T
A4985SETTR-T
A4985SLPTR-T
Load Supply Voltage
Output Current
Logic Input Voltage
Logic Supply Voltage
VBBx to OUTx
Sense Voltage
Reference Voltage
Operating Ambient Temperature
Maximum Junction
Storage Temperature
Part Number
Characteristic
24-contact QFN with exposed thermal pad
32-contact QFN with exposed thermal pad
24-pin TSSOP with exposed thermal pad
Symbol
T
V
Package
J
V
SENSE
I
V
V
(max)
T
OUT
V
T
REF
BB
DD
stg
IN
A
DMOS Microstepping Driver with Translator
Range S
The A4985 is supplied in three surface mount packages: two QFN
packages, the 4 mm × 4 mm, 0.75 mm nominal overall height ES
package, and the 5 mm × 5 mm × 0.90 mm ET package. The LP
package is a 24-pin TSSOP. All three packages have exposed pads
for enhanced thermal dissipation, and are lead (Pb) free (suffix –T),
with 100% matte tin plated leadframes.
1500 pieces per 7-in. reel
1500 pieces per 7-in. reel
4000 pieces per 13-in. reel
Notes
And Overcurrent Protection
Packing
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
–0.3 to 5.5
–0.3 to 5.5
–55 to 150
–20 to 85
Rating
150
0.5
35
±1
35
5.5
Units
ºC
ºC
ºC
V
V
V
V
V
V
A
2