Allicdata Part #: | 497-2344-5-ND |
Manufacturer Part#: |
ULN2003A |
Price: | $ 0.00 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | STMicroelectronics |
Short Description: | IC PWR RELAY 7NPN 1:1 16DIP |
More Detail: | Bipolar (BJT) Transistor Array 7 NPN Darlington 50... |
DataSheet: | ULN2003A Datasheet/PDF |
Quantity: | 15121 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Transistor Type: | 7 NPN Darlington |
Current - Collector (Ic) (Max): | 500mA |
Voltage - Collector Emitter Breakdown (Max): | 50V |
Vce Saturation (Max) @ Ib, Ic: | 1.6V @ 500µA, 350mA |
Current - Collector Cutoff (Max): | 50µA |
DC Current Gain (hFE) (Min) @ Ic, Vce: | 1000 @ 350mA, 2V |
Power - Max: | -- |
Frequency - Transition: | -- |
Operating Temperature: | -40°C ~ 85°C (TA) |
Package / Case: | 16-DIP (0.300", 7.62mm) |
Supplier Device Package: | 16-DIP |
Base Part Number: | ULN2003A |
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ULN2003A application field and working principle
Introduction: The ULN2003A is a Darlington driver array which consists of seven NPN Darlington pairs that are connected together with common emitter of each one. This device is very suitable for driving the high current up to 500mA. In the industry, this device is used for the logic elements, such as logic gates, shift registers, encoders, decoders, and other logic circuits when they are connected to the TTL logic level. This article is to introduce the application fields and working principles of ULN2003A.
Application fields
- Lighting controlling systems.
- Stepper motors and other motors.
- Relays.
- Solenoids.
- Power supply.
- Robotics.
- Security cameras.
The ULN2003A is a very popular device due to its unique characteristics that make it ideal for a wide range of different applications. For example, it can be used as a current buffer in lighting controlling systems, motor drivers, and other applications where high current needs to be managed. It can also be used as a power supply for robots and other robotic applications. In addition, it can also be used for security cameras in order to supply the power required for any type of camera.
Working Principle
The ULN2003A is a seven-channel Darlington array. Each channel of the array consists of a series connection between the base and emitter of an NPN transistor. The base of each NPN transistor is controlled by a snubber diode to protect it from damage due to transient voltages. When the voltage at the base of one of the NPN transistors is increased, the current flowing through its emitter-collector junction also increases, thus providing a much higher collector current than just the current into the base.
The ULN2003A can be used to drive high voltage and high current loads. It can be used to drive relays, stepper motors and other motors, solenoids, and many other kinds of loads. The ULN2003A uses internal clamp diodes to protect itself from voltage spikes due to inductive loads. It can also be used for driving end point detection (EPD) systems, which are used in robotic applications. The internal clamp diodes provide protection against voltage spikes caused by inductive loads.
Conclusion
In conclusion, the ULN2003A is a very useful device for a wide range of applications. It can be used for driving high voltage and high current loads, as well as for protection against voltage spikes due to inductive loads. It can also be used for robotic applications, such as end point detection systems. By understanding its application fields and working principles, you can make the best use of the ULN2003A.
The specific data is subject to PDF, and the above content is for reference
Part Number | Manufacturer | Price | Quantity | Description |
---|
ULN2003AD16-U | Diodes Incor... | -- | 4156 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2003ADE4 | Texas Instru... | 0.48 $ | 1358 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003APW | Texas Instru... | -- | 639 | IC PWR RELAY 7NPN 1:1 16T... |
ULN2003AIPW | Texas Instru... | -- | 1321 | IC PWR RELAY 7NPN 1:1 16T... |
ULN2069B | STMicroelect... | -- | 1164 | TRANS 4NPN DARL 80V 1.75A... |
ULN2066B | STMicroelect... | -- | 1003 | TRANS 4NPN DARL 50V 1.75A... |
ULN2002AD16-U | Diodes Incor... | 0.43 $ | 4328 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2003ADRG3 | Texas Instru... | -- | 2500 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003ADR | Texas Instru... | -- | 50000 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003AIDR | Texas Instru... | -- | 8930 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003AIPWR | Texas Instru... | -- | 12580 | IC PWR RELAY 7NPN 1:1 16T... |
ULN2004ADR | Texas Instru... | -- | 1000 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003LVPWR | Texas Instru... | -- | 10000 | IC POWER RELAY N-CHAN 16T... |
ULN2003A | STMicroelect... | -- | 15121 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2803ADWR | Texas Instru... | -- | 101 | TRANS 8NPN DARL 50V 0.5A ... |
ULN2003AD | Texas Instru... | -- | 20908 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003AN | Texas Instru... | -- | 13305 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2804A | STMicroelect... | -- | 14600 | TRANS 8NPN DARL 50V 0.5A ... |
ULN2803A | STMicroelect... | -- | 19385 | TRANS 8NPN DARL 50V 0.5A ... |
ULN2803ADW | Texas Instru... | -- | 14230 | TRANS 8NPN DARL 50V 0.5A ... |
ULN2803ADWG4 | Texas Instru... | 1.11 $ | 1743 | TRANS 8NPN DARL 50V 0.5A ... |
ULN2068B | STMicroelect... | 1.95 $ | 4085 | TRANS 4NPN DARL 50V 1.75A... |
ULN2003F12FN-7 | Diodes Incor... | -- | 1000 | IC PWR RELAY N-CHAN U-DFN... |
ULN2001D1013TR | STMicroelect... | -- | 5000 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003ADRG4 | Texas Instru... | -- | 30000 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003V12DR | Texas Instru... | -- | 7500 | IC DARL TRANS ARRAY 7CH 1... |
ULN2003ANSR | Texas Instru... | -- | 6000 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003BDR | Texas Instru... | -- | 5000 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2003LVDR | Texas Instru... | -- | 17500 | IC POWER RELAY N-CHAN 16S... |
ULN2002A | STMicroelect... | 0.36 $ | 4366 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2003AID | Texas Instru... | -- | 5233 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2004AN | Texas Instru... | -- | 3098 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2004AD | Texas Instru... | -- | 3240 | IC PWR RELAY 7NPN 1:1 16S... |
ULN2004AIN | Texas Instru... | -- | 1272 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2003AIN | Texas Instru... | -- | 4985 | IC PWR RELAY 7NPN 1:1 16D... |
ULN2802A | STMicroelect... | -- | 2434 | TRANS 8NPN DARL 50V 0.5A ... |
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