A3980KLP Allegro Microsystems Inc, A3980KLP Datasheet - Page 17

• Manufacturer Part Number: A3980KLP
• Description: IC DRIVER MICROSTEPPING 28-TSSOP
• Manufacturer: Allegro Microsystems Inc

Specifications of A3980KLP

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ± 1A
• Voltage - Load: 7 V ~ 50 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A3980
SENSE1
SENSE2
OUT1A
OUT2A
AGND
VDD
MS2
MS1
PFD
RC1
REF
RC2
DIR
SR
10
11
12
13
14
1
2
3
4
5
6
7
8
9
VDD
Pin-out Diagram
÷ 8
Reg
VBB1
VBB2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VBB1
SLEEP
ENABLE
OUT1B
CP2
CP1
VCP
PGND
VREG
STEP
OUT2B
FF2
FF1
VBB2
Automotive DMOS Microstepping Driver
Terminal List Table
SENSE1
SENSE2
ENABLE
OUT1A
OUT2A
OUT2B
OUT1B
SLEEP
AGND
VREG
PGND
Name
STEP
VBB2
VBB1
VDD
MS2
MS1
VCP
PFD
RC1
REF
RC2
CP1
CP2
FF1
FF2
DIR
SR
Sense resistor for full-bridge 1
Enable synchronous rectifi cation
Logic input
Output A for for full-bridge 1
Mixed decay setting
Analog input for fi xed off-time for full-bridge 1
Analog ground
Current trip reference voltage input
Analog input for fi xed off-time for full-bridge 2
Logic supply voltage
Output A for for full-bridge 2
Logic input
Logic input
Sense resistor for full-bridge 2
Load supply 2
Fault fl ag 1
Fault fl ag 2
Output B for for full-bridge 2
Logic input
Regulator decoupling
Power ground
Reservoir capacitor
Charge pump capacitor 1
Charge pump capacitor 2
Output B for for full-bridge 1
Logic input
Logic input
Load supply 1
Description
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
with Translator
Number
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
11
1
2
3
4
5
6
7
8
9
17