Model No: ULN2803ADWR
Texas Instruments ULN2803ADWR
Manufacturer: Texas Instruments
SEMICON NO: ULN2803ADWR
Package: 18-SOIC
Stock: In stock
Description: TRANS 8NPN DARL 50V 0.5A 18SOIC
SEMICON NO: ULN2803ADWR
Package: 18-SOIC
Stock: In stock
Description: TRANS 8NPN DARL 50V 0.5A 18SOIC
Quantity :
| Manufacturer | Texas Instruments |
| Part Number | ULN2803ADWR |
| Type | Darlington Transistor Array |
| Transistor Polarity | NPN |
| Maximum Collector-Emitter Voltage (VCEO) | 50 V |
| Maximum DC Collector Current | 0.5 A |
| Number of Channels | 8 channels |
| Collector Current (Ic) | 500 mA per output |
| Input Voltage Range | Compatible with various logic types |
| Mounting Style | SMD/SMT |
| Operating Temperature | -40°C to +85°C |
| Package | SOIC-18 |
The ULN2803ADWR is a high voltage, high current Darlington transistor array manufactured by Texas Instruments. It uses surface mount technology (SMD/SMT) and is packaged as SOIC-18, and has a compact size for easy design and installation in a variety of industrial and home appliance equipment. The device integrates eight NPN-type Darlington transistors, each capable of operating independently, each Darlington pair has a collector current rating of 500mA, and the Darlington pair can be connected in parallel for higher current capabilities. In addition, it has a high voltage output function with a maximum collector-emitter voltage of 50V and an operating temperature range of -40°C to 85°C.
ULN2803ADWR features
TheULN2803ADWR has several distinctive features that make it excellent in a variety of applications. First, it provides a current gain of up to 1000, which effectively converts low-level logic signals into high-current drive signals. Second, the input side of the device is compatible with TTL or CMOS levels, which is suitable for direct connection with microcontrollers (such as 51 series, AVR, ARM, etc.) without additional level conversion circuits. In addition, the ULN2803ADWR also has a built-in protection diode, which can effectively prevent the influence of inductive load reverse current, improving the reliability and durability of the overall circuit. Finally, with eight output channels, the device can drive multiple loads at the same time, making it suitable for applications where multiple relays or motors need to be controlled simultaneously.
ULN2803ADWR application
TheULN2803ADWR is widely used in many fields due to its high current output capability, built-in protection circuit and wide compatibility. It can be used as a relay driver to control the switch of the relay through TTL or CMOS signal, which is suitable for household appliances, industrial control and other fields. In addition, it can also be used in stepper motor drivers, providing enough current to drive the various phase coils of the stepper motor, and is widely used in automation equipment, 3D printers, etc. In terms of lighting control, the ULN2803ADWR can be used for switching control of lighting systems, especially in situations where large currents need to be driven, such as controlling multiple bulbs or high-power lighting devices. In addition, it can be used in application scenarios such as display drivers (LED and gas discharge), line drivers and logic buffers.
ULN2803ADWR features
TheULN2803ADWR has several distinctive features that make it excellent in a variety of applications. First, it provides a current gain of up to 1000, which effectively converts low-level logic signals into high-current drive signals. Second, the input side of the device is compatible with TTL or CMOS levels, which is suitable for direct connection with microcontrollers (such as 51 series, AVR, ARM, etc.) without additional level conversion circuits. In addition, the ULN2803ADWR also has a built-in protection diode, which can effectively prevent the influence of inductive load reverse current, improving the reliability and durability of the overall circuit. Finally, with eight output channels, the device can drive multiple loads at the same time, making it suitable for applications where multiple relays or motors need to be controlled simultaneously.
ULN2803ADWR application
TheULN2803ADWR is widely used in many fields due to its high current output capability, built-in protection circuit and wide compatibility. It can be used as a relay driver to control the switch of the relay through TTL or CMOS signal, which is suitable for household appliances, industrial control and other fields. In addition, it can also be used in stepper motor drivers, providing enough current to drive the various phase coils of the stepper motor, and is widely used in automation equipment, 3D printers, etc. In terms of lighting control, the ULN2803ADWR can be used for switching control of lighting systems, especially in situations where large currents need to be driven, such as controlling multiple bulbs or high-power lighting devices. In addition, it can be used in application scenarios such as display drivers (LED and gas discharge), line drivers and logic buffers.
