ULN2804APG,N

Drivers, Receivers, Transceivers Overview

The ULN2804APG,N is an eight-channel Darlington sink driver manufactured by Toshiba Semiconductor and Storage. It comprises eight NPN Darlington pairs designed for high-voltage and high-current applications. Each channel provides a single output current capability of up to 500 mA maximum, with a minimum high sustaining voltage of 50 V. The device features integral clamp diodes connected to the common pin to suppress inductive kickback from loads. Inputs are compatible with various logic families, including TTL and CMOS. The component is housed in an 18-pin DIP package.

Drivers, Receivers, Transceivers Feature Summary

• Integral clamp diodes included for switching inductive loads
• Inputs compatible with various types of logic
• High-voltage and high-current Darlington driver configuration

Drivers, Receivers, Transceivers Applications

• Relay drivers
• Hammer drivers
• Lamp drivers
• Display (LED) drivers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer designation, as Toshiba Semiconductor and Storage operates under different branding structures. Confirm the exact suffix 'N' against official Toshiba documentation to ensure it denotes the correct package variant or compliance status. Cross-reference the part number with authorized distributors to validate authenticity and current production status.

Drivers, Receivers, Transceivers Selection Notes

Select this component when driving inductive loads such as relays or solenoids requiring high voltage isolation. Ensure the load current does not exceed the 500 mA per channel limit. Verify that the input logic levels match the drive circuitry. Consider thermal dissipation if multiple channels are active simultaneously, as power consumption increases with load current.

Drivers, Receivers, Transceivers Part Context

The ULN2804 series belongs to the family of high-voltage, high-current Darlington arrays. These devices are engineered to interface low-power logic circuits with higher-power loads. The inclusion of built-in flyback diodes simplifies board layout for inductive applications by eliminating the need for external clamping components.

Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the ULN2803A and ULN2804A from manufacturers such as STMicroelectronics, ON Semiconductor, and Allegro MicroSystems. Verify pin compatibility and electrical specifications before substitution.