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- Stock & Prices $ Price & Stock for ULN2003TTR
- Part Number ULN2003TTR
- Manufacturer STMicroelectronics
- Pin Count 16
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - TSSOP16_2021
- Released Date Jul 19, 2021
- Last Modified Date Jan 8, 2026 2:31 PM UTC
- Pinout / Pin List Click Here (Member Only)
ULN2003TTR Details
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Manufacturer Part Number:
ULN2003TTR
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Brand Name:
STMicroelectronics
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Package Description:
DIP-16
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Country Of Origin:
Mainland China
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.60
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Factory Lead Time:
10 Weeks
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Date Of Intro:
2020-09-13
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Manufacturer:
STMicroelectronics
ULN2003TTR Frequently Asked Questions (FAQs)
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The maximum current that each output of ULN2003TTR can handle is 500mA. However, it's recommended to derate the current to 350mA for reliable operation.
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To protect the ULN2003TTR from back-EMF when driving inductive loads, you can add a freewheeling diode in parallel with the load. This diode allows the current to decay slowly, reducing the back-EMF voltage.
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The minimum input voltage required for the ULN2003TTR to function properly is 2.4V. However, it's recommended to use a minimum of 3V to ensure reliable operation.
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Yes, the ULN2003TTR can be used to drive a relay. However, you need to ensure that the relay's coil current is within the output current rating of the ULN2003TTR (500mA). You may also need to add a freewheeling diode to protect the ULN2003TTR from back-EMF.
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To reduce the power consumption of the ULN2003TTR in standby mode, you can connect the input pins to a logic low level or use an enable input to disable the device. This can reduce the quiescent current to a few microamperes.
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ULN2003TTR Overview
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut