ULN2001AD

$0.48

Description：SMALL SIGNAL BIPOLAR TRANSISTOR
Series：*

SKU:8cdbe188c94a Category: Bipolar Transistor Arrays Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：SMALL SIGNAL BIPOLAR TRANSISTOR
Series：*
Mfr：Texas Instruments
Package：Bulk
Transistor Type：-
Current - Collector (Ic) (Max)：-
Voltage - Collector Emitter Breakdown (Max)：-
Vce Saturation (Max) @ Ib, Ic：-
Current - Collector Cutoff (Max)：-
DC Current Gain (hFE) (Min) @ Ic, Vce：-
Power - Max：-
Frequency - Transition：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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ULN2001AD

Overview

The ULN2001AD is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It contains seven NPN Darlington pairs with common emitters and integrated suppression diodes for inductive load switching. The device features a collector current rating of 500 mA per channel and supports output voltages up to 50 V. It is housed in a 16-pin SOIC package measuring 9.90 mm by 3.91 mm. The inputs are compatible with general-purpose logic families including DTL, TTL, PMOS, and CMOS.

Feature Summary

Seven open-collector Darlington pairs integrated within a single package
Integrated suppression diodes designed for driving inductive loads
Input pins positioned opposite output pins to simplify printed circuit board layout

Applications

Relay Drivers
Stepper and DC Brushed Motor Drivers
Lamp Drivers
Display Drivers (LED and Gas Discharge)
Logic Buffers

Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the SOIC-16 package configuration required for your design. Confirm that the component meets the necessary thermal resistance specifications for your application's ambient temperature conditions. Ensure compatibility with standard surface-mount assembly processes before finalizing procurement.

Selection Notes

Select this component when interfacing low-power logic outputs with high-voltage or high-current loads requiring sink capability. The ULN2001A variant is suitable for general-purpose logic families such as DTL, TTL, PMOS, and CMOS. Consider paralleling outputs if the total load current exceeds the 500 mA limit of a single channel.

Part Context

This part belongs to the ULx200xA series of high-voltage, high-current Darlington arrays from Texas Instruments. The family includes variants like ULN2002A, ULN2003A, and ULN2004A, which differ primarily in their internal base resistor values to optimize compatibility with specific logic voltage levels such as 5V TTL or higher voltage PMOS interfaces.

Replacement Considerations

ULN2003AD: Compatible alternative with built-in base resistors for direct 5V TTL/CMOS interfacing. ULN2004AD: Suitable for CMOS/PMOS applications operating between 6V and 15V. STMicroelectronics ULN2001D1013TR: Equivalent function in an SOIC-16 package.

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Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.