A4987SESTR-T Allegro Microsystems Inc, A4987SESTR-T Datasheet - Page 3
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A4987SESTR-T
Manufacturer Part Number
A4987SESTR-T
Description
IC STEPPER MOTOR DRIVER 24QFN
Manufacturer
Allegro Microsystems Inc
Datasheet
1.A4987SLPTR-T.pdf
(17 pages)
Specifications of A4987SESTR-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
24-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
Evaluation Tools
Available
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
620-1375 - Board Eval Motor Control A4987
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
A4987
0.22 μF
SLEEP
VREG
VDD
IN01
IN02
IN11
IN12
PH1
PH2
REF
V
REF
DAC
REGULATOR
PWM Latch
BLANKING
Mixed Decay
OSC
Sense2
V
REF
CONTROL
LOGIC
PWM Latch
BLANKING
Mixed Decay
DMOS Dual Full-Bridge PWM Motor Driver
OSC
Functional Block Diagram
V
REF
Sense2
V
CP
OSC
V
DRIVE
REG
GATE
DAC
OCP
OCP
V
REG
DMOS FULL-BRIDGE 2
CHARGE PUMP
DMOS FULL-BRIDGE 1
With Overcurrent Protection
0.1 μF
Sense2
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
SENSE1
SENSE2
OUT1A
OUT1B
OUT2A
OUT2B
VBB1
VBB2
0.1 μF
V
To
BB2
3