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Name: A3979SLPTR-T
Brand: Allegro MicroSystems
SKU: A3979SLPTR-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Allegro MicroSystems A3979SLPTR-T

Part No.:: A3979SLPTR-T

Manufacturer:: Allegro MicroSystems

Package:: 28-TSSOP (0.173, 4.40mm Width) Exposed Pad

Datasheet:: A3979SLPTR-T.pdf

Description:: IC MTR DRV BIPOLR 3-5.5V 28TSSOP

In Stock:: 3101

Quantity:: Add To Cart

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A3979SLPTR-T Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
-
ProductStatus:
Active
MotorType-Stepper:
Bipolar
MotorType-ACDC:
-
Function:
Driver - Fully Integrated, Control and Power Stage
OutputConfiguration:
Half Bridge (4)
Interface:
Logic
Technology:
DMOS
StepResolution:
1, 1/2, 1/4, 1/16
Applications:
General Purpose
Current-Output:
2.5A
Voltage-Supply:
3V ~ 5.5V
Voltage-Load:
8V ~ 35V
OperatingTemperature:
-20°C ~ 150°C (TJ)
MountingType:
Surface Mount

A3979SLPTR-T this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including A3979SLPTR-T price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for A3979SLPTR-T to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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A3979SLPTR-T information

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A3979SLPTR-T Typical application Circuitry Schematics

The A3979SLPTR-T is a dual full-bridge gate driver with integrated microstepping translator ideal for operating bipolar stepper motors. The device has full, half, quarter, and sixteenth-step modes of operation. Here's a general application circuit for the A3979SLPTR-T:

1. Power Supply: Connect the load supply voltage (VM) to pin 28 and the logic supply voltage (VDD) to pin 3. Pin 1 (GND) is the ground. VDD can typically range from 3 to 5.5V, while VM can be up to 35V.

2. Motor Connections: Pins 15, 18, 23, and 26 are motor outputs (OUT1A, OUT1B, OUT2A, OUT2B). They connect to the two coils of the bipolar stepper motor.

3. Logic Inputs: Pin 5 (STEP) is the step clock input. On the rising edge, the translator will advance the motor one increment. The direction control input is pin 4 (DIR). Logic high will cause forward stepping, and logic low will cause reverse stepping.

4. Microstepping Control Inputs: Pins 6, 7, and 8 (MS1, MS2, MS3) are logic inputs that select the current decay mode and step mode.

5. Current Sense Connections: Pins 16, 17, 24, and 25 are sense connections (SENSE1, SENSE2, SENSE3, SENSE4). Connect sense resistors from these pins to GND to set the current limit.

6. Decay Mode Selection: Pin 2 (DECAY) is a logic input that selects mixed decay mode (slow decay at the beginning and fast at the end of each PWM cycle) when connected to VDD, or selects slow decay mode when connected to GND.

7. Enable and Sleep: Pin 20 (ENBL) is an active low input to enable all H-bridge outputs. Pin 19 (SLEEP\) is an active low input that minimizes power consumption by disabling internal circuitry and the output drivers when connected to a high logic level.

8. Voltage Regulator: Connect a decoupling capacitor between pin 9 (CP1) and pin 10 (CP2). Pin 27 (VREG) can supply up to 100 mA to external loads.

9. Thermal Flag: Pin 22 (TF) is an open-drain output that indicates overtemperature shutdown.

10. Blanking Time and Oscillator Frequency: Connect a resistor between pin 13 (ROSCT) and ground to set the PWM oscillator frequency. Connect a resistor between pin 14 (RTBLK) and ground to set the current sense blanking time.

11. Charge Pump Capacitors: Pins 11 and 12 (CP1 and CP2) require a capacitor to GND for the internal charge pump circuit.

Remember to always consult the datasheet of the A3979SLPTR-T for detailed information about the device and follow all recommended safety procedures while working with electronic components. This will guarantee the device's efficient and safe operation in your application.

A3979SLPTR-T FAQ

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6. What is the process for return or replacement of A3979SLPTR-T?

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 A3979SLPTR-T we delivered, we will accept the replacement or return of the A3979SLPTR-T 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 A3979SLPTR-T.

(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