A4985SETTR-T Allegro Microsystems Inc, A4985SETTR-T Datasheet - Page 18

• Manufacturer Part Number: A4985SETTR-T
• Description: IC STEPPER MOTOR DRIVER 32QFN
• Manufacturer: Allegro Microsystems Inc

Specifications of A4985SETTR-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: 32-VFQFN 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: 32
• 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

A4985
*The GND pins must be tied together externally by connecting to the PAD ground plane under the device.
ENABLE
OUT2B
Terminal List Table
GND
VCP
CP1
CP2
SENSE1
SENSE2
¯ E ¯ ¯ N ¯ ¯ A ¯ ¯ B ¯ ¯ L ¯ ¯ E ¯
OUT1A
OUT1B
OUT2A
OUT2B
¯ S ¯ ¯ L ¯ ¯ E ¯ ¯ E ¯ ¯ P ¯
¯ R ¯ ¯ E ¯ ¯ S ¯ ¯ E ¯ ¯ T ¯
ROSC
VREG
Name
STEP
VBB1
VBB2
GND
MS1
MS2
VCP
VDD
CP1
CP2
REF
PAD
DIR
NC
1
2
3
4
5
6
ES Package
PAD
3, 16
ES
17
21
18
22
15
10
11
20
23
12
14
19
24
13
4
5
2
8
9
–
1
6
7
–
18
17
16
15
14
13
OUT1B
DIR
GND
REF
STEP
VDD
26, 28, 29, 31
2, 4, 21, 23,
Number
DMOS Microstepping Driver with Translator
6, 19
ET*
20
12
27
24
30
18
13
14
25
32
15
17
22
16
10
11
7
8
5
1
3
9
–
ENABLE
OUT2B
VBB2
GND
CP1
CP2
NC
NC
Pin-out Diagrams
13, 24
1
2
3
4
5
6
7
8
LP
14
23
18
15
19
22
12
17
20
16
21
10
11
1
2
5
6
–
7
8
9
3
4
–
ET Package
Charge pump capacitor terminal
Charge pump capacitor terminal
Logic input
Logic input
Ground
Logic input
Logic input
No connection
DMOS Full Bridge 1 Output A
DMOS Full Bridge 1 Output B
DMOS Full Bridge 2 Output A
DMOS Full Bridge 2 Output B
G
Logic input
Timing set
Sense resistor terminal for Bridge 1
Sense resistor terminal for Bridge 2
Logic input
Logic input
Load supply
Load supply
Reservoir capacitor terminal
Logic supply
Regulator decoupling terminal
Exposed pad for enhanced thermal dissipation*
PAD
m
reference voltage input
24
23
22
21
20
19
18
17
And Overcurrent Protection
OUT1B
NC
VBB1
NC
DIR
GND
REF
STEP
Description
RESET
SLEEP
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
ROSC
VREG
STEP
VCP
MS1
MS2
VDD
CP1
CP2
REF
LP Package
10
11
12
1
2
3
4
5
6
7
8
9
PAD
24
23
22
21
20
19
18
17
16
15
14
13
GND
ENABLE
OUT2B
VBB2
SENSE2
OUT2A
OUT1A
SENSE1
VBB1
OUT1B
DIR
GND
18