ULQ2003IDRG4SV

$0.12

Description：DARLINGTON TRANSISTOR ARRAY
Series：*

SKU:71b505942c9d Category: Bipolar Transistor Arrays Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：DARLINGTON TRANSISTOR ARRAY
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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ULQ2003IDRG4SV

Overview

The ULQ2003IDRG4SV is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven independent NPN Darlington pairs, each capable of sinking up to 500 mA of load current while withstanding voltages up to 50 V. The device features built-in clamp diodes across each input and collector terminal to suppress inductive voltage transients when driving inductive loads such as relays or solenoids. Packaged in a TSSOP-16 surface-mount format, it operates within a temperature range of -40°C to +85°C, providing a compact solution for interfacing low-power logic circuits with higher-power devices.

Feature Summary

Integrates seven independent NPN Darlington transistor pairs for multi-channel switching
Includes internal flyback clamp diodes to protect against inductive load spikes
Designed for direct interface with TTL, CMOS, and other digital logic families

Applications

Driving relay coils and solenoid actuators
Switching stepper motor windings
General-purpose high-side or low-side load switching in industrial control systems

Procurement Notes

Verify the specific suffix 'SV' against official Texas Instruments documentation to confirm package variant and tape-and-reel specifications. Ensure the ordering part number matches the required RoHS compliance status and manufacturing date code requirements for your assembly process.

Selection Notes

Select this component when a single package must manage multiple inductive loads requiring moderate current handling. Compare pinout compatibility with existing designs if replacing legacy through-hole arrays. Confirm that the 500 mA per channel limit meets the peak current demands of the connected loads without exceeding thermal constraints.

Part Context

This part belongs to the ULQ2003 family of Darlington arrays, which are widely used for their simplicity in driving high-current loads from low-current logic sources. The 'RG4' suffix typically indicates a lead-free, green (RoHS compliant) version of the standard ULQ2003, while the base model provides the core functional architecture shared across the series.