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Signal Circuits / Motion Control Electronics / A3979SLP
Datasheets
A3979SLP by: Allegro MicroSystems LLC

Stepper Motor Controller, 2.5A, BCDMOS, PDSO28, 1.2 MM HEIGHT, EXPOSED PAD, MO-153AET, TSSOP-28

Part Details for A3979SLP by Allegro MicroSystems LLC

Results Overview of A3979SLP by Allegro MicroSystems LLC

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Applications Education and Research Aerospace and Defense Agriculture Technology Robotics and Drones

A3979SLP Information

A3979SLP by Allegro MicroSystems LLC is a Motion Control Electronic.
Motion Control Electronics are under the broader part category of Signal Circuits.

A signal is an electronic means of transmitting information, either as an analog signal with continuous values or a digital signal with discrete values. Signals are used in various systems and networks. Read more about Signal Circuits on our Signal Circuits part category page.

Price & Stock for A3979SLP

Part # Distributor Description Stock Price Buy
Win Source Electronics IC MTR DRV BIPOLR 3-5.5V 28TSSOP / Bipolar Motor Driver DMOS Logic 28-TSSOP-EP 13050
  • 16 $3.3000
  • 33 $3.0880
  • 51 $2.9810
  • 73 $2.7680
  • 94 $2.6620
  • 118 $2.5550
$2.5550 / $3.3000 Buy Now

Part Details for A3979SLP

A3979SLP CAD Models

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A3979SLP Part Data Attributes

Parametric Data
A3979SLP Allegro MicroSystems LLC
Buy Now Datasheet
Compare Parts:
A3979SLP Allegro MicroSystems LLC Stepper Motor Controller, 2.5A, BCDMOS, PDSO28, 1.2 MM HEIGHT, EXPOSED PAD, MO-153AET, TSSOP-28
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Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer ALLEGRO MICROSYSTEMS LLC
Part Package Code TSSOP
Package Description 1.2 MM HEIGHT, EXPOSED PAD, MO-153AET, TSSOP-28
Pin Count 28
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Allegro Microsystems
Additional Feature ALSO REQUIRES 8V TO 35V VBB SUPPLY
Analog IC - Other Type STEPPER MOTOR CONTROLLER
JESD-30 Code R-PDSO-G28
JESD-609 Code e0
Length 9.7 mm
Number of Functions 1
Number of Terminals 28
Operating Temperature-Max 85 °C
Operating Temperature-Min -20 °C
Output Current-Max 2.5 A
Package Body Material PLASTIC/EPOXY
Package Code HTSSOP
Package Equivalence Code TSSOP28,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Qualification Status Not Qualified
Seated Height-Max 1.2 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 3 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount YES
Technology BCDMOS
Temperature Grade OTHER
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Width 4.4 mm

Alternate Parts for A3979SLP

This table gives cross-reference parts and alternative options found for A3979SLP. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of A3979SLP, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
A3977KLP Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, NMOS, PDSO28, EXPOSED PAD, TSSOP-28 A3979SLP vs A3977KLP
A3979SLPTR-T Allegro MicroSystems LLC $4.6839 Stepper Motor Controller, 2.5A, NMOS, PDSO28, 1.20 MM HEIGHT, LEAD FREE, MO-153AET, TSSOP-28 A3979SLP vs A3979SLPTR-T
A3979SLPTR Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, BCDMOS, PDSO28, 1.2 MM HEIGHT, EXPOSED PAD, MO-153AET, TSSOP-28 A3979SLP vs A3979SLPTR
A3977KLPTR Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, NMOS, PDSO28, EXPOSED PAD, TSSOP-28 A3979SLP vs A3977KLPTR
A3979SLP-T Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, BCDMOS, PDSO28, 1.2 MM HEIGHT, LEAD FREE, EXPOSED PAD, MO-153AET, TSSOP-28 A3979SLP vs A3979SLP-T
A3977ELP Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, NMOS, PDSO28, EXPOSED PAD, TSSOP-28 A3979SLP vs A3977ELP
A3977EED Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, NMOS, PQCC44, COPPER BATWING, PLASTIC, LCC-44 A3979SLP vs A3977EED
A3977SED-T Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, NMOS, PQCC44, LEAD FREE, BATWING, PLASTIC, LCC-44 A3979SLP vs A3977SED-T
A3977SLPTR Allegro MicroSystems LLC Check for Price Stepper Motor Controller, 2.5A, NMOS, PDSO28, EXPOSED PAD, TSSOP-28 A3979SLP vs A3977SLPTR
AN44161A Panasonic Electronic Components Check for Price Stepper Motor Controller, 2.5A, BCDMOS, PDSO34, SOP-34 A3979SLP vs AN44161A

A3979SLP Related Parts

A3979SLP Frequently Asked Questions (FAQ)

  • Allegro recommends a 2-layer PCB with a solid ground plane on the bottom layer and a thermal relief pattern on the top layer to minimize thermal resistance. A minimum of 2 oz copper thickness is recommended.

  • To ensure accurate current sensing, use a low-impedance current sense resistor (CSR) and place it as close as possible to the device. Also, ensure the CSR is properly decoupled from the power supply and the device's output stage.

  • The maximum allowed voltage on the VREG pin is 5.5V. Exceeding this voltage may damage the device. It's recommended to use a voltage regulator or a Zener diode to limit the voltage to 5V or less.

  • The A3979SLP has a built-in POR and UVLO circuitry. To handle these features, ensure a proper power-up sequence, and use a capacitor on the VREG pin to filter out noise and ensure a clean power-on reset.

  • The recommended operating temperature range for the A3979SLP is -40°C to 150°C. However, the device can operate up to 170°C for short periods. Ensure proper thermal management to prevent overheating.