A3988 Просмотр технического описания (PDF) - Allegro MicroSystems
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A3988 Datasheet PDF : 13 Pages
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A3988
Quad DMOS Full Bridge PWM Motor Driver
Selection Guide
Part Number
Package
A3988SEV-T
36 pin QFN with exposed thermal pad
A3988SEVTR-T
36 pin QFN with exposed thermal pad
A3988SJP-T
48 pin LQFP with exposed thermal pad
Packing
61 pieces per tube
1500 pieces per reel
250 pieces per tray
Absolute Maximum Ratings
Characteristic
Symbol
Load Supply Voltage
VBB
Logic Supply Voltage
VDD
Output Current
IOUT
Logic Input Voltage Range
SENSEx Pin Voltage
VIN
VSENSEx
VREFx Pin Voltage
Operating Temperature Range
Junction Temperature
Storage Temperature Range
VREFx
TA
TJ(max)
Tstg
Notes
Pulsed tw < 1 μs
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.
Pulsed tw < 1 μs
Pulsed tw < 1 μs
Range S
Rating
-0.5 to 36
38
–0.4 to 7
1.2
Units
V
V
V
A
2.8
A
–0.3 to 7
V
0.5
V
2.5
V
2.5
V
–20 to 85 ºC
150
ºC
–40 to 125 ºC
Thermal Characteristics (may require derating at maximum conditions)
Characteristic
Symbol
Test Conditions
Package Thermal Resistance
EV package, 4 layer PCB based on JEDEC standard
RθJA
JP package, 4 layer PCB based on JEDEC standard
Power Dissipation versus Ambient Temperature
5500
5000
4500
4000
3500
JP Package
4-layer PCB
(RQJA = 23 ºC/W)
3000
2500
2000
1500
EV Package
4-layer PCB
(RQJA = 27 ºC/W)
1000
500
0
25
50
75
100
125
150
175
Temperature (°C)
Min. Units
27 ºC/W
23 ºC/W
Allegro MicroSystems, Inc.
2
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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