ULN2004A
- 500mA-rated collector current (single output)
- High-voltage outputs: 50V
- Output clamp diodes
- Inputs compatible with various types of logic
- Relay-driver applications
The 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 500mA. 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 100V (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 14V to 25V 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 2.7kΩ series base resistor for each Darlington pair for operation directly with TTL or 5V CMOS devices.
The ULx2004A devices have a 10.5kΩ series base resistor to allow operation directly from CMOS devices that use supply voltages of 6V to 15V. The required input current of the ULx2004A device is below that of the ULx2003A devices, and the required voltage is less than that required by the ULN2002A device.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | ULN200x, ULQ200x High-Voltage, High-Current Darlington Transistor Arrays datasheet (Rev. T) | PDF | HTML | 2025/3/21 | ||
| 電子書 | 11 Ways to Protect Your Power Path | 2019/7/3 | ||||
| 應用說明 | Stepper Motor Driving with Peripheral Drivers (Rev. A) | PDF | HTML | 2016/12/2 | |||
| 應用說明 | Improved Thermal Dissipation and Energy Efficiency for Peripheral Driving | 2014/10/30 |
設計與開發
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ULN2003ADYYEVM — 採用 DYY SOT-23-THIN 封裝的 ULN2003A 評估模組
ULN2003ADYYEVM 是硬體評估模組 (EVM)，可用於讓硬體工程師評估 ULN2003ADYY 達靈頓電晶體陣列的完整性能與功能。ULN2003ADYYEVM 的設計可做為獨立電路板使用，並具有附加電壓供應和輸出負載，以在設計為較佳應用電源系統的一部分之前，用於測試與評估 ULN2003ADYY。此 EVM 已安裝 ULN2003ADYY 的 SOT（DYY 版本）。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 16 | Ultra Librarian |
| PDIP (N) | 16 | Ultra Librarian |
| SOT-23-THN (DYY) | 16 | Ultra Librarian |
| SOP (NS) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。