Name: A3977SLP
Brand: Allegro MicroSystems, LLC
SKU: A3977SLP
Availability: InStock
Rating: 5 (175 reviews)

A3977SLP

For Reference Only

Part Number	A3977SLP
Manufacturer	Allegro MicroSystems, LLC
Description	IC MOTOR DRIVER PAR 28TSSOP
Datasheet	A3977SLP Specifications
Package	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
ECAD
In Stock	6,144 piece(s)
Unit Price	Request a Quote
Lead Time	Can Ship Immediately
Estimated Delivery Time	May 3 - May 8 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # A3977SLP (PMIC - Motor Drivers, Controllers) is manufactured by Allegro MicroSystems, LLC and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For A3977SLP specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add A3977SLP with quantity into BOM. Heisener.com does NOT require any registration to request a quote of A3977SLP.

A3977SLP Specifications

Manufacturer	Allegro MicroSystems, LLC
Category	Integrated Circuits (ICs) - PMIC - Motor Drivers, Controllers
Package	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
ECAD
Series	-
Motor Type - Stepper	Bipolar
Motor Type - AC, DC	-
Function	Driver - Fully Integrated, Control and Power Stage
Output Configuration	Half Bridge (4)
Interface	Step/Direction
Technology	DMOS
Step Resolution	1, 1/2, 1/4, 1/8
Applications	General Purpose
Current - Output	2.5A
Voltage - Supply	3 V ~ 5.5 V
Voltage - Load	8 V ~ 35 V
Operating Temperature	-20°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package	28-TSSOP-EP

A3977SLP Reviews

Kyli*****ssey

April 1, 2023

★ ★ ★ ★ ★

Well packed, good item, capacitors both within 2.5% tolerance!

Kol*****oble

March 31, 2023

★ ★ ★ ★ ★

Sure appreciate your quality, expertise and professional service. Thank you so much!!!

Cyr*****Dixon

March 23, 2023

★ ★ ★ ★ ★

EVERY OK ...GOOD ITEM AND SUPERFAST SHIPPING

Heave*****ochran

March 22, 2023

★ ★ ★ ★ ★

Solved my electrical back feed problems on my alternator.

Linc*****Wable

March 13, 2023

★ ★ ★ ★ ★

Exactly as listed and arrived very fast, excellent price and service!

Myla*****egory

March 9, 2023

★ ★ ★ ★ ★

Very pleased with the parts from this company. First class service. Thanks!

Coop*****amra

March 2, 2023

★ ★ ★ ★ ★

The order process is easy and user friendly, very helpful customer service, always fast shipping.

Write a Review

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Thanks for Your Review!

A3977SLP Packaging

A3977SLP FAQ

1. How to order A3977SLP on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that A3977SLP is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the A3977SLP. All suppliers must pass our qualification reviews before they can publish their products including A3977SLP on Heisener; we pay more attention to the channels and quality of A3977SLP products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the A3977SLP price and inventory displayed accurate?

The price and inventory of A3977SLP fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of A3977SLP?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the A3977SLP we delivered, we will accept the replacement or return of the A3977SLP only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of A3977SLP.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as A3977SLP pin diagram, A3977SLP datasheet?

If you need any after-sales service, please do not hesitate to contact us.

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A3977SLP Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

D# V72:2272_06610888

Allegro MicroSystems LLC

DMOS Stepper Motor Driver 5V 28-Pin TSSOP EP T/R

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

D# A3977SLPTR-T

Allegro MicroSystems LLC

DMOS Stepping Motor Driver 5V 28-Pin TSSOP EP T/R (Alt: A3977SLPTR-T)

A3977SLPTR

D# A3977SLPTR

Allegro MicroSystems LLC

DMOS Stepping Motor Driver 5V 28-Pin TSSOP EP T/R (Alt: A3977SLPTR)

RoHS: Not Compliant

Part Number

Manufacturer

Description

Stock

A3977SLP

Allegro MicroSystems LLC

A3977SLP-T

Allegro MicroSystems LLC

Part Number	Manufacturer	Description	Stock
A3977SLP-T	Allegro MicroSystems LLC	IC MOTOR DRIVER PAR 28TSSOP	52000
A3977SLPTR-T	Allegro MicroSystems LLC	IC MOTOR DRIVER PAR 28TSSOP	52000
A3977SLP	Allegro MicroSystems LLC	IC MOTOR DRIVER PAR 28TSSOP	52000
A3977SLPTR	Allegro MicroSystems LLC	IC MOTOR DRIVER PAR 28TSSOP	52000

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

Allegro MicroSystems LLC

TSSOP-28 Motor Drivers RoHS

3029

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

Allegro MicroSystems LLC

Stepper Motor Controller, 2.5A, NMOS, PDSO28

RoHS: Compliant

A3977SLPTRT

Allegro MicroSystems LLC

Stepper Motor Controller, 2.5A, NMOS, PDSO28

RoHS: Compliant

Part Number	Manufacturer	Description	Stock
A3977SLPTR-T D# 620-1147-1-ND	Allegro MicroSystems LLC	IC MTR DRV BIPOLR 3-5.5V 28TSSOP	4872
A3977SLP D# A3977SLP-ND	Allegro MicroSystems LLC	IC MTR DRV BIPOLR 3-5.5V 28TSSOP	0
A3977SLPTR D# A3977SLPTR-ND	Allegro MicroSystems LLC	IC MTR DRV BIPOLR 3-5.5V 28TSSOP	0
A3977SLP-T D# 620-1079-ND	Allegro MicroSystems LLC	IC MTR DRV BIPOLR 3-5.5V 28TSSOP	0

Part Number

Manufacturer

Description

Stock

A3977SLPT

D# A3977SLPT

Allegro MicroSystems LLC

Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct

2573

A3977SLPTR-T

D# A3977SLPTR-T

Allegro MicroSystems LLC

2283

Part Number	Manufacturer	Description	Stock
A3977SLPTR-T	Allegro MicroSystems LLC	In stock shipping within 2days	4260
A3977SLPT	Allegro MicroSystems LLC	In stock shipping within 2days	3000
A3977SLP	STMicroelectronics	In stock shipping within 2days	291

Part Number

Manufacturer

Description

Stock

A3977SLP-T

D# 1198090

Allegro MicroSystems LLC

DRIVER, TRANSLATOR, SMD, TSSOP28

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

A3977SLPTR-T

D# 2840982

Allegro MicroSystems LLC

MOTOR DRIVER, STEPPER, 2 O/P, TSSOP-28

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Part Number	Manufacturer	Description	Stock
A3977SLPTTR	Allegro MicroSystems LLC	OEM/CM QUOTES ONLY \| NO BROKERS	5290
A3977SLP		OEM/CM QUOTES ONLY \| NO BROKERS	4629
A3977SLPTT	ALLEGR	OEM/CM QUOTES ONLY \| NO BROKERS	126
A3977SLPTRTM16	Allegro MicroSystems LLC	OEM/CM QUOTES ONLY \| NO BROKERS	1586
A3977SLPTR	Allegro MicroSystems LLC	OEM/CM QUOTES ONLY \| NO BROKERS	6613
A3977SLPTRT	ALLEGRO MICROSYSTEMS INC	OEM/CM QUOTES ONLY \| NO BROKERS	10884
A3977SLPT	Allegro MicroSystems LLC	OEM/CM QUOTES ONLY \| NO BROKERS	5290
A3977SLPI		OEM/CM QUOTES ONLY \| NO BROKERS	492

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

Allegro MicroSystems LLC

4951

Part Number

Manufacturer

Description

Stock

A3977SLP

Allegro MicroSystems LLC

In stock

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

D# C163514

Allegro MicroSystems LLC

3019

Part Number

Manufacturer

Description

Stock

A3977SLPT

Allegro MicroSystems LLC

in stock - can ship the same day

Part Number	Manufacturer	Description	Stock
A3977SLP	Allegro MicroSystems LLC	OEM/CM Immediate delivery	895
A3977SLPTR-T	CRYSTAL	OEM/CM Immediate delivery	8000
A3977SLPT	NA	OEM/CM Immediate delivery	500

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

D# 59P3275

Allegro MicroSystems LLC

MOTOR DRIVER, DMOS, 2.5A, TSSOP-28, Motor Type:DMOS, No. of Outputs:2Outputs, Output Current:2.5A, Output Voltage:35V, Driver Case Style:TSSOP, No. of Pins:28Pins, Supply Voltage Min:3V, Supply Voltage Max:5.5V, Product Range:- RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Part Number	Manufacturer	Description	Stock
A3977SEDTR-T / A3977SLPTR D# NS-A3977SEDTR-T / A3977SLPTR	Allegro	OEM/CM ONLY	6280
A3977SLPTR-T / A3977SED-T D# NS-A3977SLPTR-T / A3977SED-T	Allegro	OEM/CM ONLY	8754
A3977SLP D# NS-A3977SLP	Allegro	OEM/CM ONLY	3218

Part Number	Manufacturer	Description	Stock
A3977SLP-T	Allegro MicroSystems LLC	STEPPER MOTOR CONTROLLER, 2.5 A, PDSO28	21
A3977SLPTR-T	Allegro MicroSystems LLC	STEPPER MOTOR CONTROLLER, 2.5 A, PDSO28	9
A3977SLP	Agilent Technologies Inc	Motor Controller Circuit, 28 Pin, TSSOP	4

Part Number

Manufacturer

Description

Stock

A3977SLP

D# A3977SLP

Allegro MicroSystems LLC

Inventory R

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

D# 6807208P

Allegro MicroSystems LLC

Allegro Microsystems A3977SLPTR-T, Stepper Motor Driver IC, 35 V 2.5A 28-Pin, TSSOP, RL

Min Qty: 1

Container: Reel

465

Part Number	Manufacturer	Description	Stock
A3977SLPTTR	Allegro MicroSystems LLC	OEM/CM ONLY	4011
A3977SLP	Allegro MicroSystems LLC	OEM/CM ONLY	799
A3977SLPT	Allegro MicroSystems LLC	OEM/CM ONLY	316
A3977SLPTT	Allegro MicroSystems LLC	OEM/CM ONLY	111
A3977SLPTRT	Allegro MicroSystems LLC	OEM/CM ONLY	13419
A3977SLPTR	Allegro MicroSystems LLC	OEM/CM ONLY	2211

Part Number	Manufacturer	Description	Stock
A3977SLPT	NA	IN stock Immediate delivery	495
A3977SLP	Allegro MicroSystems LLC	IN stock Immediate delivery	890
A3977SLPTR-T	CRYSTAL	IN stock Immediate delivery	8015

Part Number	Manufacturer	Description	Stock
A3977SLPTR-T	Allegro MicroSystems LLC	shipping today	2606
A3977SLPT	Allegro MicroSystems LLC	shipping today	9
A3977SLPTR	Allegro MicroSystems LLC	shipping today	11
A3977SLP	Allegro MicroSystems LLC	shipping today	5949
A3977SLP-T	Allegro MicroSystems LLC	shipping today	1313

Part Number	Manufacturer	Description	Stock
A3977SLPTR-T	mfr	RFQ	14898
A3977SLPT	Allegro MicroSystems LLC	RFQ	10872
A3977SLPTR-T/ A3977SED-T	Allegro MicroSystems LLC	RFQ	1916
A3977SLP	ALLEGRO????	RFQ	807
A3977SED-T/A3977SLPTR-T	Allegro MicroSystems LLC	RFQ	14069

Part Number

Manufacturer

Description

Stock

A3977SLPTR-T

Allegro MicroSystems LLC

IC MOTOR DRIVER PAR 28TSSOP

22142

Part Number

Manufacturer

Description

Stock

A3977SLP-T

D# 1198090

Allegro MicroSystems LLC

DRIVER, TRANSLATOR, SMD, TSSOP28

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

A3977SLPTR-T

D# 2840982

Allegro MicroSystems LLC

MOTOR DRIVER, STEPPER, 2 O/P, TSSOP-28

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Quick Inquiry

A3977SLP

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS