仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | ULx200xA |
| ProductStatus | Active |
| SwitchType | Relay, Solenoid Driver |
| NumberofOutputs | 7 |
| Ratio-Input:Output | 1:1 |
| OutputConfiguration | Low Side |
| OutputType | NPN |
| Interface | Parallel |
| Voltage-Load | 50V (Max) |
| Voltage-Supply(Vcc/Vdd) | Not Required |
| Current-Output(Max) | 500mA |
| InputType | Inverting |
| OperatingTemperature | -40°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 16-SOIC |
概要
Description
The ULN2004ADR is a high-voltage, high-current Darlington transistor array IC used primarily for interfacing between low-level logic and high-power loads. It includes seven NPN Darlington pairs, each capable of driving loads up to 500 mA and withstanding voltages up to 50V. The device is commonly utilized to control inductive loads such as relays, solenoids, and stepper motors, thanks to its built-in flyback diodes that protect against voltage spikes.
The ULN2004ADR is part of the ULN2000 series, specifically designed for use with TTL and CMOS logic families. It has a 16-pin configuration, with inputs on one side and outputs on the other, simplifying the connection between control circuits and the loads. The robust design makes it ideal for use in automotive, industrial, and consumer electronics applications where reliable interfacing is essential. Its compact size and high efficiency make the ULN2004ADR a popular choice for various electronic projects requiring load switching capabilities.
The ULN2004ADR is part of the ULN2000 series, specifically designed for use with TTL and CMOS logic families. It has a 16-pin configuration, with inputs on one side and outputs on the other, simplifying the connection between control circuits and the loads. The robust design makes it ideal for use in automotive, industrial, and consumer electronics applications where reliable interfacing is essential. Its compact size and high efficiency make the ULN2004ADR a popular choice for various electronic projects requiring load switching capabilities.
Equivalent
The ULN2004ADR is a Darlington transistor array. Equivalent products include ULN2003, ULN2803, and ULQ2004A. These alternatives also feature high-voltage, high-current Darlington transistor arrays and are used in similar applications like driving relays, lamps, and stepper motors. It's important to check the specific electrical characteristics and pin configurations, as there may be slight variations in specifications or package types.
Features
The ULN2004ADR is a high-voltage, high-current Darlington transistor array. Key features include:
1. High Current Capacity: Each of the seven Darlington pairs can handle up to 500 mA, suitable for driving high-current loads.
2. High Voltage Capability: The array can handle voltages up to 50V, making it ideal for interfacing with high-voltage components.
3. Integrated Suppression Diodes: Includes clamp diodes for inductive load suppression, protecting the device from voltage spikes.
4. Wide Range of Applications: Commonly used for driving relays, lamps, LEDs, and solenoids.
5. Standard TTL and CMOS Compatibility: Inputs are compatible with TTL and 5V CMOS, facilitating easy interfacing with microcontrollers and other digital logic.
6. Compact Package: Available in a 16-pin SOIC (Small Outline Integrated Circuit) package, which is conducive to space-saving designs.
7. Temperature Range: Operates effectively over a wide temperature range, typically from -20°C to 85°C.
The ULN2004ADR is frequently used in automotive, industrial, and consumer electronics applications due to its robustness and versatility.
1. High Current Capacity: Each of the seven Darlington pairs can handle up to 500 mA, suitable for driving high-current loads.
2. High Voltage Capability: The array can handle voltages up to 50V, making it ideal for interfacing with high-voltage components.
3. Integrated Suppression Diodes: Includes clamp diodes for inductive load suppression, protecting the device from voltage spikes.
4. Wide Range of Applications: Commonly used for driving relays, lamps, LEDs, and solenoids.
5. Standard TTL and CMOS Compatibility: Inputs are compatible with TTL and 5V CMOS, facilitating easy interfacing with microcontrollers and other digital logic.
6. Compact Package: Available in a 16-pin SOIC (Small Outline Integrated Circuit) package, which is conducive to space-saving designs.
7. Temperature Range: Operates effectively over a wide temperature range, typically from -20°C to 85°C.
The ULN2004ADR is frequently used in automotive, industrial, and consumer electronics applications due to its robustness and versatility.
Pinout
The ULN2004ADR is a high-voltage, high-current Darlington transistor array. It typically comes in a 16-pin package. The primary function of this IC is to serve as an interface between TTL or CMOS logic outputs and higher voltage loads such as relays, motors, and lamps.
Here’s a brief overview of the pin configuration:
1. Pins 1-7, 9: Input pins for the seven Darlington pairs.
2. Pins 10-16: Corresponding output pins for the Darlington pairs.
3. Pin 8 (GND): Ground pin.
4. Pin 9: Typically not used or left as a no-connect.
5. Pin 10 (COM): Common pin connected to the cathodes of the internal suppression diodes, often tied to the load's positive supply voltage to clamp inductive voltage spikes.
The ULN2004ADR can drive loads of up to 500mA and supports load voltages up to 50V. It is ideal for driving various peripheral devices in applications requiring higher power handling than typical logic circuits can provide.
Here’s a brief overview of the pin configuration:
1. Pins 1-7, 9: Input pins for the seven Darlington pairs.
2. Pins 10-16: Corresponding output pins for the Darlington pairs.
3. Pin 8 (GND): Ground pin.
4. Pin 9: Typically not used or left as a no-connect.
5. Pin 10 (COM): Common pin connected to the cathodes of the internal suppression diodes, often tied to the load's positive supply voltage to clamp inductive voltage spikes.
The ULN2004ADR can drive loads of up to 500mA and supports load voltages up to 50V. It is ideal for driving various peripheral devices in applications requiring higher power handling than typical logic circuits can provide.
Manufacturer
The ULN2004ADR is manufactured by Texas Instruments, an American technology company. Texas Instruments is known for designing and manufacturing semiconductors and integrated circuits, which are widely used in electronic devices. The company is one of the largest semiconductor manufacturers globally and specializes in areas such as analog chips, embedded processors, and digital light processing technology.
Application
The ULN2004ADR is a high-voltage, high-current Darlington transistor array used in various applications. Common uses include driving LED displays, relay coils, and stepper motors. It is also employed in interfacing logic-level signals to higher voltage loads, such as lamps and solenoids, in automotive and industrial applications. The built-in flyback diodes provide suppression of voltage transients, making it suitable for inductive loads. Additionally, the device is used in printer and vending machine control circuits, as well as in general-purpose amplification tasks where high-current switching is required. Its compact design makes it ideal for space-constrained applications.
Package
The ULN2004ADR is a Darlington transistor array typically housed in a SOIC-16 (Small Outline Integrated Circuit) package. This package type is surface-mount and is designed for applications requiring compact and efficient circuit board space usage.
