A4988SETTR-T Allegro Microsystems Inc, A4988SETTR-T Datasheet - Page 19

• Manufacturer Part Number: A4988SETTR-T
• Description: IC MICROSTEPPER MOTOR DRVR 28QFN
• Manufacturer: Allegro Microsystems Inc

Specifications of A4988SETTR-T

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ±2A
• 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: 28-VFQFN Exposed Pad
• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 2A
• Output Voltage: 35V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: QFN
• No. Of Pins: 28
• Operating Temperature Range: -20°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1343-2

A4988
29X
0.73 MAX
0.08
D
0.25
C
+0.05
–0.07
1
2
1
2
28
28
ET Package, 28-Pin QFN with Exposed Thermal Pad
A
5.00 ±0.15
0.50
3.15
B
DMOS Microstepping Driver with Translator
5.00 ±0.15
3.15
0.90 ±0.10
SEATING
PLANE
C
A Terminal #1 mark area
B Exposed thermal pad (reference only, terminal #1
C Reference land pattern layout (reference IPC7351
D Coplanarity includes exposed thermal pad and terminals
For Reference Only; not for tooling use
(reference JEDEC MO-220VHHD-1)
Dimensions in millimeters
Exact case and lead configuration at supplier discretion within limits shown
identifier appearance at supplier discretion)
QFN50P500X500X100-29V1M);
All pads a minimum of 0.20 mm from all adjacent pads; adjust as
necessary to meet application process requirements and PCB layout
tolerances; when mounting on a multilayer PCB, thermal vias at the
exposed thermal pad land can improve thermal dissipation (reference
EIA/JEDEC Standard JESD51-5)
1.15
1
C
28
PCB Layout Reference View
And Overcurrent Protection
0.30
3.15
4.80
0.50
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
3.15
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
4.80
19