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ULN2003AIDG4
The ULN2003AIDG4 from Texas Instruments is a versatile bipolar transistor array with Darlington configuration and NPN type transistors
ULN2003AIDG4
The ULN2003AIDG4 from Texas Instruments is a versatile bipolar transistor array with Darlington configuration and NPN type transistors
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Manufacturer Part # : ULN2003AIDG4
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Package/Case: SOIC-16
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Brand: Texas Instruments
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Product Categories : Power Distribution Switches, Load Drivers
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ULN2003AIDG4 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
for the ULN2003AIThe ULx200xA devices are high-voltage, high-current Darlington transistor arrays. Each consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads.The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers. For 100-V (otherwise interchangeable) versions of the ULx2003A devices, see the SLRS023 data sheet for the SN75468 and SN75469 devices.The ULN2002A device is designed specifically for use with 14-V to 25-V PMOS devices. Each input of this device has a Zener diode and resistor in series to control the input current to a safe limit. The ULx2003A devices have a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.The ULx2004A deviceshave a 10.5-kΩ series base resistor to allow operation directly from CMOS devicesthat use supply voltages of 6 V to 15 V. The required input current of the ULx2004Adevice is below that of the ULx2003A devices, and the required voltage is less thanthat required by the ULN2002A device. . . .
Key Features
- 500-mA-Rated Collector Current (Single Output)
- High-Voltage Outputs: 50 V
- Output Clamp Diodes
- Inputs Compatible With Various Types of Logic
- Relay-Driver Applications
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Category ! | Darlington Transistors | RoHS | Details |
| Configuration | Array 7 | Transistor Polarity | NPN |
| Collector- Emitter Voltage VCEO Max | 50 V | Maximum DC Collector Current | 500 mA |
| Mounting Style | SMD/SMT | Package / Case | SOIC-Narrow-16 |
| Minimum Operating Temperature | - 40 C | Maximum Operating Temperature ! | + 105 C |
| Series | ULN2003AI | Brand | Texas Instruments |
| Height | 1.58 mm | Length | 9.9 mm |
| Operating Temperature Range ! | - 40 C to + 105 C | Product Type ! | Darlington Transistors |
| Factory Pack Quantity | 1000 | Subcategory | Transistors |
| Width | 3.91 mm | Unit Weight | 0.012346 oz |
Specification Comparison
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is ULN2003AIDG4?
The ULN2003AIDG4 is a high-voltage, high-current darlington transistor array designed by Texas Instruments. It is commonly used for driving inductive loads such as relays, solenoids, and stepper motors in various applications including industrial automation, automotive systems, and consumer electronics.
How Does ULN2003AIDG4 Work?
The ULN2003AIDG4 works by providing a convenient way to interface low-level logic signals with high-power loads. It consists of seven NPN darlington pairs that amplify the control signals from a microcontroller or other logic circuitry to drive the connected loads with high current and voltage capability.
How Many Pins does ULN2003AIDG4 have and What are the Functions of the Pinout Configuration?
The ULN2003AIDG4 is housed in a 16-lead SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- COM: Common emitter pin for the darlington outputs.
- IN1 to IN7: Input control pins for the respective darlington outputs.
- OUT1 to OUT7: Output pins connected to the respective darlington emitter.
- GND: Ground reference pin.
- VCC: Positive power supply pin for the darlington outputs.
What are the Pros and Cons of ULN2003AIDG4?
Pros:
- High Voltage and Current Capability: Suitable for driving a wide range of inductive loads with high power requirements.
- Integrated Protection Diodes: Built-in flyback diodes for inductive load protection, reducing the need for external components.
- Simple Interface: Provides a simple interface between low-level logic signals and high-power loads.
- Thermal Shutdown Protection: Includes thermal shutdown protection to prevent damage during high-temperature conditions.
- Space-Efficient Package: The 16-lead SOIC package is space-efficient and suitable for compact designs.
Cons:
- Power Dissipation: May require heat sinking or derating at high current and voltage levels.
- Clamping Diodes Voltage Limit: The built-in clamping diodes have a limited reverse voltage capability, which may not be suitable for all applications.
- Speed Limitation: The darlington pairs have limitations in switching speed, which may not be suitable for high-frequency applications.
Are There Any Equivalents/Alternatives to ULN2003AIDG4 for Recommendation?
- The ULN2803A from STMicroelectronics is a similar high-voltage, high-current darlington transistor array suitable for comparable applications.
- Alternatives to the ULN2003AIDG4 include the MC1413 from ON Semiconductor and the TD62783 from Toshiba.
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