Datasheets
UDN2543B by:

Buffer/Inverter Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, POWER, DIP-16

Part Details for UDN2543B by Allegro MicroSystems LLC

Results Overview of UDN2543B by Allegro MicroSystems LLC

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

UDN2543B Information

UDN2543B 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 UDN2543B

Part # Distributor Description Stock Price Buy
Quest Components IC,PERIPHERAL DRIVER,4 DRIVER,BIPOLAR,DIP,16PIN,PLASTIC 4
  • 1 $4.2000
  • 3 $3.5000
$3.5000 / $4.2000 Buy Now

Part Details for UDN2543B

UDN2543B CAD Models

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UDN2543B Part Data Attributes

UDN2543B Allegro MicroSystems LLC
Buy Now Datasheet
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UDN2543B Allegro MicroSystems LLC Buffer/Inverter Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, POWER, DIP-16
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer ALLEGRO MICROSYSTEMS LLC
Part Package Code DIP
Package Description DIP, DIP16,.3
Pin Count 16
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.39.00.01
Built-in Protections TRANSIENT; OVER CURRENT; THERMAL
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 4
Number of Terminals 16
Operating Temperature-Max 85 °C
Operating Temperature-Min -20 °C
Output Characteristics OPEN-COLLECTOR
Output Current Flow Direction SINK
Output Current-Max 0.7 A
Output Peak Current Limit-Nom 1 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 UDN2543B

This table gives cross-reference parts and alternative options found for UDN2543B. 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 UDN2543B, 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
UDQ2559EB-T Allegro MicroSystems LLC Check for Price Peripheral Driver, 4 Driver, BIPolar, PQCC28 UDN2543B vs UDQ2559EB-T
CA3262AE Rochester Electronics LLC Check for Price Buffer/Inverter Based Peripheral Driver, 0.7A, BIPolar, PDIP16 UDN2543B vs CA3262AE
Part Number Manufacturer Composite Price Description Compare
SN75437ANE Texas Instruments $2.2616 Quadruple peripheral drivers 16-PDIP 0 to 70 UDN2543B vs SN75437ANE
DS3668N/NOPB Texas Instruments $2.6027 Quad fault protected peripheral driver 16-PDIP -40 to 125 UDN2543B vs DS3668N/NOPB
DS3658N National Semiconductor Corporation Check for Price IC 0.6 A AND GATE BASED PRPHL DRVR, PDIP16, PLASTIC, DIP-16, Peripheral Driver UDN2543B vs DS3658N
UDK2559B Allegro MicroSystems LLC Check for Price And Gate Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, MS-001BB, DIP-16 UDN2543B vs UDK2559B
UDQ2559B Allegro MicroSystems LLC Check for Price And Gate Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, MS-001BB, DIP-16 UDN2543B vs UDQ2559B
UDQ2543B Allegro MicroSystems LLC Check for Price Buffer/Inverter Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, POWER, DIP-16 UDN2543B vs UDQ2543B
DS3668N National Semiconductor Corporation Check for Price IC 1 A 4 CHANNEL, BUF OR INV BASED PRPHL DRVR, PDIP16, PLASTIC, DIP-16, Peripheral Driver UDN2543B vs DS3668N
SN75437ANEE4 Texas Instruments Check for Price Quadruple peripheral drivers 16-PDIP 0 to 70 UDN2543B vs SN75437ANEE4
UDN2559B Allegro MicroSystems LLC Check for Price And Gate Based Peripheral Driver, 4 Driver, 1A, BIPolar, PDIP16, MS-001BB, DIP-16 UDN2543B vs UDN2559B
SN75435NE Texas Instruments Check for Price 0.6A 4 CHANNEL, BUF OR INV BASED PRPHL DRVR, PDIP16 UDN2543B vs SN75435NE

UDN2543B Related Parts

UDN2543B Frequently Asked Questions (FAQ)

  • The UDN2543B can operate from -20°C to 85°C (TJ) and is suitable for automotive applications.

  • The UDN2543B has a thermal pad on the bottom of the package, which should be connected to a copper plane on the PCB to dissipate heat. Additionally, ensure good airflow and avoid blocking the airflow around the device.

  • Allegro recommends a 4-layer PCB with a solid ground plane, and to keep the high-current paths short and wide. The datasheet provides a recommended PCB layout and land pattern.

  • Yes, the UDN2543B is designed to withstand high-vibration environments and is suitable for automotive and industrial applications. However, ensure the device is properly mounted and the PCB is designed to withstand vibrations.

  • Use TVS diodes or other protection devices on the input and output pins to protect the UDN2543B from EOS. Additionally, ensure the device is operated within its recommended voltage and current ratings.

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