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A3988 Datasheet(PDF) 2 Page - Allegro MicroSystems

Part No. A3988
Description  Quad DMOS Full Bridge PWM Motor Driver
Download  13 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3988 Datasheet(HTML) 2 Page - Allegro MicroSystems

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Quad DMOS Full Bridge PWM Motor Driver
A3988
2
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Selection Guide
Part Number
Package
Packing
A3988SEV-T
36 pin QFN with exposed thermal pad
61 pieces per tube
A3988SEVTR-T
36 pin QFN with exposed thermal pad
1500 pieces per reel
A3988SJP-T
48 pin LQFP with exposed thermal pad
250 pieces per tray
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating
Units
Load Supply Voltage
VBB
-0.5 to 36
V
Pulsed tw < 1 μs38
V
Logic Supply Voltage
VDD
–0.4 to 7
V
Output Current
IOUT
May be limited by duty cycle, ambient temperature, and heat sinking. Under
any set of conditions, do not exceed the specified current rating or a Junction
Temperature of 150°C.
1.2
A
Pulsed tw < 1 μs
2.8
A
Logic Input Voltage Range
VIN
–0.3 to 7
V
SENSEx Pin Voltage
VSENSEx
0.5
V
Pulsed tw < 1 μs
2.5
V
VREFx Pin Voltage
VREFx
2.5
V
Operating Temperature Range
TA
Range S
–20 to 85
ºC
Junction Temperature
TJ(max)
150
ºC
Storage Temperature Range
Tstg
–40 to 125
ºC
Thermal Characteristics (may require derating at maximum conditions)
Characteristic
Symbol
Test Conditions
Min. Units
Package Thermal Resistance
RθJA
EV package, 4 layer PCB based on JEDEC standard
27
ºC/W
JP package, 4 layer PCB based on JEDEC standard
23
ºC/W
5500
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
25
50
75
100
125
150
175
Temperature (°C)
Power Dissipation versus Ambient Temperature
(R JA = 23 ºC/W)
JP Package
4-layer PCB
(R JA = 27 ºC/W)
EV Package
4-layer PCB


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