Datasheets
UDN2540B by:

Buffer/Inverter Based Peripheral Driver, 4 Driver, 2.5A, BIPolar, PDIP16, DIP-16

Part Details for UDN2540B by Allegro MicroSystems LLC

Results Overview of UDN2540B by Allegro MicroSystems LLC

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

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

UDN2540B Information

UDN2540B by Allegro MicroSystems LLC is a Peripheral Driver.
Peripheral Drivers are under the broader part category of Drivers And Interfaces.

A driver controls the current or voltage delivered to components like LCDs or motors, while an interface component connects systems for data transfer and control. Read more about Drivers And Interfaces on our Drivers And Interfaces part category page.

Price & Stock for UDN2540B

Part # Distributor Description Stock Price Buy
Bristol Electronics   1463
RFQ
Chip 1 Exchange INSTOCK 20
RFQ

Part Details for UDN2540B

UDN2540B CAD Models

There are no models available for this part yet.

Sign in to request this CAD model.

Register or Sign In

UDN2540B Part Data Attributes

UDN2540B Allegro MicroSystems LLC
Buy Now Datasheet
Compare Parts:
UDN2540B Allegro MicroSystems LLC Buffer/Inverter Based Peripheral Driver, 4 Driver, 2.5A, BIPolar, PDIP16, DIP-16
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer ALLEGRO MICROSYSTEMS LLC
Part Package Code DIP
Package Description DIP-16
Pin Count 16
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.39.00.01
Built-in Protections TRANSIENT
Driver Number of Bits 4
Input Characteristics STANDARD
Interface IC Type BUFFER OR INVERTER BASED PERIPHERAL DRIVER
JESD-30 Code R-PDIP-T16
JESD-609 Code e0
Length 19.175 mm
Number of Functions 1
Number of Terminals 16
Operating Temperature-Max 85 °C
Operating Temperature-Min -20 °C
Output Characteristics OPEN-COLLECTOR
Output Current Flow Direction SOURCE
Output Current-Max 1.8 A
Output Peak Current Limit-Nom 2.5 A
Output Polarity INVERTED
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP16,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Qualification Status Not Qualified
Seated Height-Max 5.33 mm
Supply Voltage-Max 5.25 V
Supply Voltage-Min 4.75 V
Supply Voltage-Nom 5 V
Surface Mount NO
Technology BIPOLAR
Temperature Grade OTHER
Terminal Finish TIN LEAD
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm

Alternate Parts for UDN2540B

This table gives cross-reference parts and alternative options found for UDN2540B. 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 UDN2540B, 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
A5895SLWTR Allegro MicroSystems LLC Check for Price SIPO Based Peripheral Driver, 0.25A, BIMOS, PDSO16, SOIC-16 UDN2540B vs A5895SLWTR
L6221CN STMicroelectronics Check for Price 3.2A 4 CHANNEL, AND GATE BASED PRPHL DRVR, PZFM15, MULTIWATT-15 UDN2540B vs L6221CN
CA3262AM Intersil Corporation Check for Price 1.2A 4 CHANNEL, BUF OR INV BASED PRPHL DRVR, PDSO24, PLASTIC, MS-013AD, SOIC-24 UDN2540B vs CA3262AM
UDQ2549EB Allegro MicroSystems LLC Check for Price Buffer/Inverter Based Peripheral Driver, 4 Driver, 1A, CMOS, PQCC28, PLASTIC, LCC-28 UDN2540B vs UDQ2549EB
L6221N STMicroelectronics Check for Price 3.2A 4 CHANNEL, BUF OR INV BASED PRPHL DRVR, PSFM15, MULTIWATT-15 UDN2540B vs L6221N
UDN2549EB Allegro MicroSystems LLC Check for Price Buffer/Inverter Based Peripheral Driver, 4 Driver, 1A, CMOS, PQCC28, PLASTIC, LCC-28 UDN2540B vs UDN2549EB
UDQ2549EBTR Allegro MicroSystems LLC Check for Price Buffer/Inverter Based Peripheral Driver, 1A, CMOS, PQCC28, PLASTIC, LCC-28 UDN2540B vs UDQ2549EBTR
UDN2543EB Allegro MicroSystems LLC Check for Price Buffer/Inverter Based Peripheral Driver, 4 Driver, 1A, BIPolar, PQCC28, PLASTIC, LCC-28 UDN2540B vs UDN2543EB
CA3262AM96 Rochester Electronics LLC Check for Price Buffer/Inverter Based Peripheral Driver, PDSO24, PLASTIC, SOIC-24 UDN2540B vs CA3262AM96
UDQ2559B-T Allegro MicroSystems LLC Check for Price And Gate Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, LEAD FREE, MS-001BB, DIP-16 UDN2540B vs UDQ2559B-T

UDN2540B Related Parts

UDN2540B Frequently Asked Questions (FAQ)

  • The maximum current rating of the UDN2540B is 40A, but it's recommended to derate the current to 30A for continuous operation to ensure reliability and prevent overheating.

  • The UDN2540B has an internal voltage regulator, but it's still recommended to add external overvoltage protection (OVP) circuitry to prevent damage from voltage spikes or transients.

  • The minimum input voltage required for the UDN2540B is 5.5V, but it's recommended to use a minimum of 6V to ensure proper operation and to account for voltage drops in the system.

  • The UDN2540B is rated for operation up to 150°C, but it's recommended to derate the current and voltage ratings at higher temperatures to ensure reliability and prevent overheating.

  • To troubleshoot issues with the UDN2540B, check the input voltage, output current, and temperature. Use an oscilloscope to check for voltage spikes or transients, and verify that the device is properly soldered and connected.

Share by Email

Something went wrong!
Please enter a valid e-mail address
Email sent!
Recipient Email:
Add a recipient
Hello!

We are passing along some cool findings on Findchips sent to you from .

The data is for UDN2540B by Allegro MicroSystems LLC.
They’ve also added a data comparison to this page with by .


Click on the link below to check it out on Findchips.com.

Update Alert Settings for: UDN2540B by Allegro MicroSystems LLC

Select Manufacturer
Which Manufacturer of UDN2540B would you like to use for your alert(s)?
  • Please alert me when UDN2540B inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for UDN2540B alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
  • Please alert me when the single part price for UDN2540B to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for UDN2540B alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for UDN2540B.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.

Compare UDN2540B by Allegro MicroSystems LLC

Select a part to compare:
Part Number Manufacturer Description
No result found.
Something went wrong!
Or search for a different part: