
ULN2804ADTR
Manufacturer Part Number: ULN2804ADTR | Manufacturer / Brand: XBLW |
Part of Description: The MIC29302DTR is a high-current, high-accuracy, low-dropout voltage regulator designed for use in a wide range of electronic applications. | Lead Free Status / RoHS Status: Digital Signal Processors & Controllers - DSP, DSC 16 BIT HYBRID CNTRLR |
Ship From: HK/Shen Zhen | Shipment Way: DHL/Fedex/TNT/UPS |
Datasheets: |
Product parameters
Manufacturer | XBLW |
Details | RoHS |
Mounting Style | SMD/SMT |
Package / Case | SOP-18 |
Minimum Operating Temperature | – 40 C |
Transistor Polarity | +85 C |
Packaging | Tape |
Moisture Sensitive | Yes |
Factory Pack Quantity | 2500 |
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The ULN2804ADTR is a high-voltage, high-current Darlington transistor array IC manufactured by a leading semiconductor company, often associated with brands like Allegro or STMicroelectronics. Here is a detailed description of the ULN2804ADTR in English:
The ULN2804ADTR comprises eight Darlington transistors with a common emitter, specifically designed for driving inductive loads. Each Darlington transistor features a peak load current rating of 600mA (with 500mA continuous), and can withstand at least 50V in the off-state. The outputs can be paralleled to achieve higher current capabilities.
Key Features:
- Eight Darlington Transistors:
- The IC contains eight independent Darlington transistors, each providing high current gain and voltage amplification.
- High-Voltage, High-Current Capability:
- With a maximum collector-emitter voltage of 50V and a peak load current rating of 600mA, the ULN2804ADTR is suitable for driving a wide range of power loads.
- Integrated Suppressor Diodes:
- Each output channel incorporates an integrated suppressor diode, which protects the IC from transient voltage spikes generated by inductive loads during switching.
- CMOS-Compatible Inputs:
- The IC has CMOS-compatible inputs with an input resistance of 10.5kΩ, allowing it to interface easily with digital circuits and microcontrollers.
- Convenient Pin Configuration:
- The ULN2804ADTR adopts an 18-pin plastic DIP package with convenient input and reverse output pins, simplifying circuit board layout.
- Wide Operating Voltage Range:
- The IC can operate within a wide power supply voltage range, typically between 4V and 30V.
- Multi-Channel Driver:
- The ULN2804ADTR serves as a multi-channel driver, integrating eight independent high-current, high-voltage switch outputs. Each channel can drive different loads.
- Current Amplification:
- It has the ability to amplify input signal current, enabling the control of loads requiring higher currents.
- ESD Protection:
- The IC includes electrostatic discharge (ESD) protection to enhance reliability in ESD environments.
- Small Package:
- Offered in a small package, it is easy to integrate onto circuit boards.
Typical Applications:
- Relay Drivers: The ULN2804ADTR can drive relays, controlling the switching of high-voltage circuits.
- Stepper Motor Drivers: Suitable for driving stepper motors in automation and robotics applications.
- Lamp and Bulb Drivers: Capable of controlling incandescent lamps, LEDs, and other lighting devices.
- Electromagnetic Valves: Can be used to control electromagnetic valves in industrial and automotive applications.
- Display Drivers: Suitable for driving displays, such as segment displays and small LED arrays.
In summary, the ULN2804ADTR is a powerful high-current driver IC designed for applications requiring the control and driving of high-current loads. Its multi-channel design and internal protection features make it a common choice in many electronic designs, particularly in embedded systems.